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Chapter 5 Web-Based Operations

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Lynx DSA User's Manual - 9240227J

E. Operation with Reset Preamps

The Lynx is fully compatible with most pulsed reset preamplifiers. Reset preamps

use an electronic circuit, as opposed to a feedback resistor, to restore the preamp to a

reference level. As a result, the preamp output is a succession of step functions that

staircase or ramp up to an upper limit or threshold that initiates a preamp reset.

Configuring the Preamp Reset Mode

When using a Transistor Reset Preamp (TRP) it may be necessary to disable the

Reset Delay feature, if present, on the associated preamplifier. If the Reset Delay

feature is left enabled, small phantom peaks may result slightly before or after each

of the main spectral peaks.

If you are using a CANBERRA Model 2101 preamplifier, disable the Reset Delay

using these three steps:

Remove all signal and power connections from the preamp.

Remove the preamp cover and change jumper plug W1 from position A to

position B. Jumper plug W1 is located on the main PC board next to RV1.

When done, reinstall the preamp cover and reconnect the preamp to the Lynx

as before or as indicated in System Connections for a Detector.

For additional information on the Reset Delay feature and jumper plug W1 please

refer to the

Model 2101 User’s Manual

Pole/Zero Setting for Reset Preamps

Since the Reset Preamp output signal is a step function instead of the classical tail

pulse, with exponential decay, Pole/Zero compensation is not required. For this

application, the Pole/Zero compensation should be turned off or set to zero. On the

Lynx, this is accomplished by setting the preamp type to TRP. The preamp type is

selected in the Genie Gamma Acquisition and Analysis MCA Filter Adjust dialog. If

TRP is selected, the Pole/Zero is automatically set to a value of zero, corresponding

to a fall time of infinity, and no further adjustment is required. If the RC Preamp

Type is selected, the pole/zero value on the second page of the MCA Filter Adjust

dialog must be manually set to zero.

Содержание Lynx DSA

Страница 1: ...Lynx Digital Signal Analyzer 9240227J User s Manual...

Страница 2: ...this product the right to copy any material in this document for the purchaser s own use including as part of a submission to regulatory or legal authorities pursuant to the purchaser s legitimate bus...

Страница 3: ...bration 15 3 Controls and Connectors 16 Front Panel Indicators 16 LED Status 17 Rear Panel Connectors 18 Inputs 18 General Purpose I O 19 Outputs 19 Lynx System Power 21 Communication Ports 21 Control...

Страница 4: ...DSP Gain Parameters 48 High Voltage Parameters 51 DSP Filter Parameters 53 Sample Changer Parameters 54 MCS Parameters 57 Acquisition Setup 58 Counting Modes 59 Time Preset 59 MCS Presets 59 External...

Страница 5: ...ings 101 Digital Filter Settings 104 Stabilizer 109 Auxiliary Counters 115 External Synchronization Settings 116 Sample Changer Settings 118 Single Channel Analyzers SCA 119 Maintenance Options 120 Ne...

Страница 6: ...tup Summary 151 Preferred Setup Wired IP Network 151 Alternate Setup Connection 159 Connect Your PC to the Lynx via RS 232 159 Recommended Browser Settings 160 Universal Plug and Play 161 Adding Unive...

Страница 7: ...unting Your Lynx 202 Rack mounting a Single Unit 203 Rack mounting Two Units 204 G Saving Input Data in AVA N42 and CAM Formats 207 H Updating Lynx Firmware from Previous Versions to V1 5 x x 208 Meth...

Страница 8: ...Refer to documentation for detailed explanation of caution symbol wherever marked Earth tree symbol indicates the connection point for the primary earth ground supply Product complies with appropriate...

Страница 9: ...y make a sophisticated adjustment to a parameter or setting Figure 1 Front View of Lynx DSA Setup is designed to be simple and its web enabled set up and operation provide live spectral display contro...

Страница 10: ...viii Lynx DSA User s Manual 9240227J Notes...

Страница 11: ...the Lynx DSA Each of its chapters covers specific functions Chapters The Chapters are divided into the following arrangement Chapter 1 Introduction is an introduction to the manual s content and an ov...

Страница 12: ...ting Your Lynx provides instructions on how to mount the Lynx in a conventional 19 inch equipment rack using the optional rack mounting kit Appendix G Saving Input Data in N42 and CAM Formats provides...

Страница 13: ...e TCP IP and DHCP network support 10 100 Base TX Ethernet for fast network connections up to 100m without repeaters or over any distance with repeaters USB and Ethernet for fast convenient local conne...

Страница 14: ...gnal Analyzer DSO Digital Storage Oscilloscope DSP Digital Signal Processor FPGA Field Programmable Gate Array GPIO General Purpose Input Output Connectors ICR Incoming Count Rate MCA Multichannel Ana...

Страница 15: ...he DLFC Dual Loss Free Counting mode of operation allows real time acquisition of events and will produce two PHA type spectra One spectrum contains live time corrected counts and the other produces t...

Страница 16: ...ng Libraries on page 7 List Modes The Lynx supports Standard List Mode LIST and Time Stamped List Mode TLIST Input 1 must be set to the appropriate mode to enable List mode In Standard List mode each...

Страница 17: ...HA DLFC MSS LIST TLIST or Input 2 MCS If using List or time stamped List mode through a custom application please see important note in Using the Programming Libraries on page 7 Using Programming Libr...

Страница 18: ...thers The user interface provides means for manipulating the Lynx s settings and acquire data using any of its acquisition engines Lynx Version 1 5 or higher supports two user interface methods A summ...

Страница 19: ...mmunications Setup Appendix starting on page 150 Then from your computer launch your Internet browser e g Microsoft Edge to access the Lynx s web interface The default URL address of http 10 0 0 3 for...

Страница 20: ...Manual pdf for requirements capabilities and detailed explanation of the Lynx Web Client application The figure below shows the application s basic views Figure 3 Data and Navigator Views of the Lynx...

Страница 21: ...on any button will display an error message This section of the Lynx User s Manual dealing with the web client application has been over simplified Detailed explanations of the Lynx Web Client applica...

Страница 22: ...P server or must be manually assigned to eliminate address contentions Each site s network requirements are unique To connect your Lynx to your network typically requires changing the Lynx s settings...

Страница 23: ...nd then press Update button to push the new settings to the Lynx Close the browser to disconnect from the Lynx Next time the Lynx is accessed with a new browser session the new login credentials will...

Страница 24: ...difference in seconds between the computer s timestamp and Lynx s timestamp Viewing the Firmware and Application Versions From the Navigator view select Maintenance MCA Information to retrieve the Fi...

Страница 25: ...processing Stabilizer for setting spectrum stabilization parameters Auxiliary Counters for controlling the digital input counters and viewing data External Synchronization for setting external synchro...

Страница 26: ...cations that may be used to verify a setup however there are no user indicators that require the Lynx s front panel to be visible to the user Front Panel Indicators The Front Panel LED indicators are...

Страница 27: ...data Off indicates neither acquisition is in process COMM A green LED for Communications Illuminates each time the instrument has received a command over any supported communications interface HV A mu...

Страница 28: ...ity is software selectable ENERGY Accepts energy signals from a detector preamplifier polarity is software selectable HV INH High Voltage Inhibit signal input Accepts the preamplifier s Inhibit signal...

Страница 29: ...Test Pulser options in MCA Settings Counters in the HTML5 web page for option settings GP I 0 1 Accepts signals for auxiliary counting when Test Pulser is disabled GP I O 2 Accepts signals for auxilia...

Страница 30: ...perations WARNING High voltage direct current energy can be present on the High Voltage Power connectors which can be harmful Separate connectors are provided for positive HV and negative HV high rang...

Страница 31: ...communications formats are supported the connectors are listed below Communication setup commands and options are described in the Communications Setup Appendix starting on page 150 10 100 T Connects...

Страница 32: ...pplying Power CAUTION The miniature power jack is mechanically locked it screws on to prevent accidental disconnection Do not forcibly remove it from the Lynx unit as this may cause damage to the prov...

Страница 33: ...be performed Both reset operations will turn off the high voltage and abort any acquisition currently in process The Lynx will be rebooted similar to a power cycle Spectral data for PHA and MCS will...

Страница 34: ...finally switch to solid green when the Lynx is ready Typically a soft audible click is heard from the front end micro relays as the Lynx initializes the front end electronics with user settings Import...

Страница 35: ...tablet or equivalent as described in the chapter Getting Started on page 8 Spectral analysis is performed from your PC using the Genie 2000 system Apex ProSpect or your custom application The chapter...

Страница 36: ...he information presented in this section is a review of information presented in the Genie 2000 Operations Manual As it may be relevant some areas focus on details specific to the Lynx DSA and some de...

Страница 37: ...abase If the Definition you want to edit has been loaded into the MCA Runtime Configuration Database it must first be unloaded before it can be opened in the editor See Unloading the Database on page...

Страница 38: ...and then save those settings as a MID file In addition to using the MID Editor to create a new input definition it may be used to edit an existing MID file You may choose to use the MID Editor to chan...

Страница 39: ...ach MCA through the Settings Menu After your desired settings for this MCA Definition have been achieved save the MCA Input Definition as a MID file We ll discuss how to add and delete the MID editor...

Страница 40: ...d into the database Loading Multiple Definitions Though some of the programmable controls may be initially set with the MCA Input Definition Editor all programmable controls applicable to the Lynx can...

Страница 41: ...he MID Editor to work with at least one definition file for your device Start the MID Editor by double clicking on its icon in the Genie 2000 Program Group or by selecting the desktop icon if provided...

Страница 42: ...ition Table dialog box opens This dialog contains all available MCAs 3 Select Lynx MCA from the list of available MCAs by clicking on the symbol next to Network MCAs Figure 8 Adding the Lynx MCA 4 Cli...

Страница 43: ...lete MCA 3 The Delete MCA dialog box opens Click on OK to remove the entry in the table Figure 9 The Delete MCA Dialog Defining an MCA This section discusses setting up a Lynx based MCA which has a fu...

Страница 44: ...gned to this input By default the maximum number of channels 32768 is assigned this value can be reduced later at run time within the Acquisition and Analysis application HV This column describes the...

Страница 45: ...ition Click on OK to accept the changes Figure 11 Identify Lynx Device by entering its IP Address Figure 12 Identify Lynx Device by entering its DCHP Name Note Device names are restricted to 8 charact...

Страница 46: ...and Play UPnP messages and the PC must have UPnP enabled Figure 13 MID Plug and Play Discovery of Lynx Sample Changer From the Device menu select the Sample Changer command to display the following d...

Страница 47: ...he Lynx All selections within the Settings menu with the exception of Input have no adjustable controls in MID editor Settings for these devices are made through Genie s run time Acquisition and Adjus...

Страница 48: ...e 32768 by default At run time acquisition can be directed into either group simply by pre selecting the group number before starting acquire Additionally the input size can be changed at run time to...

Страница 49: ...rd The MID Wizard helps you set up simple Input Definitions quickly and easily It allows you to create a MID definition in a few simple steps and immediately load it into the runtime database however...

Страница 50: ...etwork MCAs and then click the Next button Figure 16 Selecting the MCA Step 2 Configuring the MCA Note At this point in the setup process the Lynx is required to be connected to the network or directl...

Страница 51: ...depending on your acquisition requirements where 1 PHA acquisition and 2 MCS acquisition In addition enter the Lynx s IP address or the Lynx s exact UPnP Name See Discovering the Lynx MCA on page 42 f...

Страница 52: ...fication information will be displayed Select the desired Lynx and click the OK button to automatically fill the IP address information in the Device IP Address field Note Discover will only work on n...

Страница 53: ...detail in Input Settings on page 37 Figure 20 Assigning the Detector Type The number of channels Input Size can be set here and also changed at run time however please be aware that the setting here a...

Страница 54: ...MCA Runtime Configuration Database When you select Finish you will be asked if you would like to define another input Answering Yes will start the Wizard again and No will close the Wizard Note that...

Страница 55: ...may have selected the wrong data source for the instrument there is a problem with the communication interface check the cables the instrument power is off or the instrument IP address was incorrectly...

Страница 56: ...under Hardware Options see Stabilizer on page 109 Genie s Stabilizer settings screen for the Lynx contains the following controls Figure 22 Adjust Screen s Stabilizer Settings Gain Centroid The Centro...

Страница 57: ...he Gain ratio value is interpreted by the stabilizer as the ratio to maintain between the two windows ratio upper window lower window For instance a value of 1 000 would be appropriate for a pure Gaus...

Страница 58: ...c allows the Lynx to calculate the value automatically when acquisition and stabilization are active For most typical applications this setting should be set to Automatic Typical Setup Sequence For a...

Страница 59: ...Fine Gain cannot be adjusted when the Spectrum Stabilizer is active PUR Guard Sets the device s Guard Time GT multiplier to reject trailing edge pileup in the event of detector preamp anomalies The PU...

Страница 60: ...nt please refer to the applicable guideline under Coarse Gain setting LLD The digital Lower Level Discriminator LLD sets the minimum input acceptance level active only when Manual LLD mode is selected...

Страница 61: ...urce The datasource type is defined during the MID Editor or MID Wizard session by selecting MCA Number 1 for PHA or Number 2 for MCS The High Voltage control in the Adjust dialog provides access to a...

Страница 62: ...rned Off as the voltage output approaches zero its decay becomes exponential This means that a residual voltage may still be present at the SHV connector after the high voltage power supply has been s...

Страница 63: ...0 0 to 3 0 s in steps of 0 1 s BLR mode Sets the baseline restorer mode With a setting of Auto the baseline restorer is automatically optimized as a function of trapezoid shaping time and count rate...

Страница 64: ...nition of the datasource in the MID Editor The datasource type is defined during the MID Editor or MID Wizard session by selecting MCA Number 1 for PHA or Number 2 for MCS The sample changers settings...

Страница 65: ...or batch control Pulse width is always 150 milliseconds Positive selects a TTL low quiescent state and produces a TTL low to high pulse Negative selects a TTL high quiescent state and produces a TTL...

Страница 66: ...er command The sample conveyer advances until the next sample carrier is located in the load position Load Issues a load sample command The chamber door is opened The sample in the load position is lo...

Страница 67: ...well time value The unit s selection can be set to microseconds milliseconds or seconds Dwell Value Sets the dwell time value in units specified by the Dwell Range control The Lynx supports a dwell va...

Страница 68: ...ROI mode is selected as the Disc Mode for the MCS input signal Note ROI Start and ROI End values are channel numbers with reference to the PHA input size Acquisition Setup This section includes a revi...

Страница 69: ...to terminate PHA acquisition For PHA and LFC counting modes select either Live Time or Real Time selections then enter and select the acquire time in seconds minutes or hours to establish the time pr...

Страница 70: ...External Controls on page 93 for detailed explanations of each setting Input Size Select the Lynx s full memory size The memory size settings range from 256 to 32768 channels Note that if the datasou...

Страница 71: ...e ability to qualify the recording of incoming events A qualifying gate signal must arrive within a time window which is selectable by the user The gate input signal at the COINC ANTI connector of the...

Страница 72: ...227J System Connections for a Detector This describes a basic system consisting of a Lynx a CANBERRA Germanium Detector and its Preamplifier or preamp and a PC running Genie 2000 Apex or ProSpect Figu...

Страница 73: ...s POWER connector and the Lynx s PREAMP connector The PREAMP connector includes a bail mechanism to secure the preamplifier s power cable to the Lynx unit Figure 33 A Preamp Power Connector 9 pin mal...

Страница 74: ...using CANBERRA s Model 2101 Transistor Reset Preamplifier connect a BNC cable between the 2101 s INHIBIT connector and the Lynx s TRP INH connector Note Take care to not connect the cable in Step 3 to...

Страница 75: ...be changed The default password is password To use any of the Lynx s communication interfaces the appropriate cable must be connected between a host computer and the Lynx Ethernet is the recommended m...

Страница 76: ...then the supplied 10 100 Base Tx UTP Ethernet crossover cable red in color must be used On your Windows PC go to My Network Places to open the Network Explorer view An icon labeled Lynx should appear...

Страница 77: ...instructions USB USB D is for connecting the Lynx as a Device to a USB hub or directly to a host computer One 3 m 10 ft conventional USB A B cable is supplied Before you can use the USB interface you...

Страница 78: ...he simplest and most reliable connection is Ethernet either direct using crossover cable or indirect through a network If needed the following references contain additional information on establishing...

Страница 79: ...to the one shown below would be displayed Figure 37 Lynx Web Client Login Page If the Login page is presented the credentials that must be entered are neither are case sensitive Name Administrator Th...

Страница 80: ...ikewise Login is disabled on a new Lynx received from the factory Setting the Lynx to new IP Address IP address can be set to be dynamically assigned by your network with DHCP enabled or statically as...

Страница 81: ...ations can open the Lynx in read only mode however for viewing purposes This section provides a summary of the built in user interface access methods and functionalities It is intended as a quick refe...

Страница 82: ...ides the best user experience in terms of performance and ease of operation Usage information of the Web Client interface is provided in the sections that follow In some cases more detailed explanatio...

Страница 83: ...trol is through the Acquisition Panel The option to expand the plot to show a split screen display with the whole spectrum in the lower half of the display and the expanded portion in the upper half T...

Страница 84: ...n be found in the Lynx Web Client User s Manual pdf Figure 39 Navigator View Data View The Data View is the graphical data area of the Web Client s main page The view displays data measurements from a...

Страница 85: ...t of the Acquisition Panel is used to expand the plot to show a split screen display with the whole spectrum in the lower half of the display and the expanded portion in the upper half The expand plot...

Страница 86: ...s examination of the digital signal reconstructed in time to assist and verify instrument setup pole zero optimization and manual Reset Preamp Inhibit adjustments The DSO Plot is activated by selectin...

Страница 87: ...e information Information View The Information View is activated by selecting the Information tab located below the graphics area of the page The Information view displays the Acquisition or Calibrati...

Страница 88: ...r the currently selected input High Voltage Power Supply HVPS shows the state of the high voltage power supply Stabilizer shows the state of the spectrum stabilizer Pole Zero shows the state of automa...

Страница 89: ...rnal event then pressing Start will arm the acquisition and the Input will enter a waiting state until satisfied by the external event at which time the Input state will switch to busy Acquisition can...

Страница 90: ...display the current elapsed value If no preset condition has been set the progress bar will not be filled in and the percent complete will indicate 0 0 Digital Oscilloscope The Lynx incorporates elect...

Страница 91: ...ed pulse output from the slow shaper that has been derived from the incoming tail pulse Fast Shaper displays the initial signal produced by the incoming energy event detected by the fast discriminator...

Страница 92: ...provide a more stable view This feature may be useful when optimizing pole zero setting or examining the baseline s noise characteristics Pileup reject Pileup reject will qualify the capture logic to...

Страница 93: ...etector The signal goes low when the signal crosses the slow discriminator threshold level and begins searching for the peak signal amplitude The signal goes high when the system has detected the peak...

Страница 94: ...t Preferences Options This panel provides various options for changing the look and feel of the graphs used within the Lynx Web Client application The options have been grouped into three tabs Miscell...

Страница 95: ...Tooltips when checked displays the tooltip text Show Gridlines when checked displays the gridlines for the x and y axis Figure 44 The Miscellaneous Preference Settings Background Gradient when checked...

Страница 96: ...current energy calibration is used for the channel to energy translation When Custom is selected the following options are available Custom Label provides a label for the spectral plot X axis Custom...

Страница 97: ...Singlet sets the color of a Singlet ROI type Multiplet sets the color of a Multiplet ROI type ROI Type 3 sets the color of a type 3 ROI ROI Type 4 sets the color of a type 4 ROI Figure 46 Colors Prefe...

Страница 98: ...ting determines the mode of acquisition for the selected Input Please refer to Acquisition Modes and Acquisition Units on page 5 for information on various acquisition modes supported by the Lynx Acqu...

Страница 99: ...urrently selected Input number The value can range from 256 channels to 32768 channels Each channel can store up to 232 1 approx 4 29B counts For Input 1 the Input Size represents the number of channe...

Страница 100: ...nel numbers Start and End whose values are based on the current Input Size setting Latch Available for LIST and TLIST modes For LIST selects the Fast Discriminator or Peak Detect as the latch time whe...

Страница 101: ...Selections are Off Coincidence Anti Coincidence Combined Adv Coincidence and Combined Adv Anti Coincidence Off Coincidence logic is disabled Storage is not affected by external gating signals Coincide...

Страница 102: ...Gate Delay parameter when the value is greater than the filter shaping Note HTML5 application only displays GATED events from Memory group 1 To view combined data please use other application like Ge...

Страница 103: ...ting logic is set by the width of the external gating pulse Range is 0 1 to 10 0 Sec Refer to the individual Gate Mode settings above for additional information on the usage of this setting External C...

Страница 104: ...er the edge of a TTL pulse positive edge for Positive polarity or negative edge for Negative polarity will disable storage of data and terminate the acquisition Once storage has been stopped subsequen...

Страница 105: ...f Channels The Input size determines the amount of acquisition memory in number of channels that the Lynx assigns to the currently selected Input number The value can range from 256 channels to 32768...

Страница 106: ...as the PHA Conversion Gain and not the MCS Input Size The Advanced tab describes the signals for sweep and channel advance Figure 51 Advanced Acquisition Settings for Input 2 Channel Polarity defines...

Страница 107: ...ect Hardware Options The Hardware options in the Navigator provides access to the Lynx s MCA settings categorized according to their functionality Description of each category follows High Voltage Pow...

Страница 108: ...connectors which can be harmful Please use extreme care Figure 53 High Voltage Power Supply Settings Voltage V The Voltage setting sets the voltage value for the current range Voltage setting is limit...

Страница 109: ...ans that a residual voltage may still be present at the SHV connector after the high voltage power supply has been switched Off To avoid shock use extreme care when connecting or disconnecting SHV cab...

Страница 110: ...sed with preamplifiers and LN2 monitors where the enable condition cold detector is a signal ranging from 24 V to 1 2 V including grounds 0 0V Inhibit condition warm detector is open circuit or active...

Страница 111: ...Gain Settings Activates the settings for the Gain parameters consisting of common parameters associated with preamplifier and amplifier These include gains signal attenuation preamplifier types and en...

Страница 112: ...t manually using the LLD setting as a percentage of the input s full scale range The LLD manual setting is only used when LLD Mode is set to Manual Important For some low energy applications even the...

Страница 113: ...be Off Refer to the Coarse Gain setting in the General tab on page 101 for additional information on making gain selections TRP Gate Polarity Selects either Positive or Negative input polarity for the...

Страница 114: ...The General tab contains access to the DSP parameters the Miscellaneous tab contains access to the Manual and Automatic Pole Zero General The General tab displays settings that are common to both Inp...

Страница 115: ...nator when the Slow Disc Mode is set to Manual Setting ranges from 0 0 to 100 0 Manual mode is useful when working with low energy applications Please refer to the Low Energy Applications on page 109...

Страница 116: ...a large increase in the overall processing time PUR Guard Sets the device s Guard Time GT multiplier to reject trailing edge pileup in the event of detector preamp anomalies The PUR guard sets the pi...

Страница 117: ...constant of infinity The Lynx s built in Digital Oscilloscope DSO or an external oscilloscope connected to the MON OUT connector can be used as an aid to verify proper automatic or manual pole zero c...

Страница 118: ...rematurely the status will report as Off Aborted Timeouts may be due to incorrect count rate improper signal amplitude incompatible time constant from the preamplifier detector or a poor quality signa...

Страница 119: ...ng the Manual Slow Disc setting will defeat noise discrimination resulting in excessive storage of noise events into the lower area of the spectrum and possibly causing undesirable operation Stabilize...

Страница 120: ...ectrum stabilizer algorithm include the width of the sampling windows a centroid channel the spacing a reference ratio and correction divider The relationship between the windows spacing and centroid...

Страница 121: ...ilizer Hardware Settings Spectrum stabilization can be useful in applications where temperature variation have a significant effect on the processing and storage of energy events Unstabilized NaI dete...

Страница 122: ...pper and lower sampling windows The windows should be placed so that a shift in the reference peak reflects a significant change in count rate through the window For broad peaks the spacing should be...

Страница 123: ...Lynx will assert an over under range fault Additionally the Lynx will switch the stabilizer mode from On to Hold Under normal temperature variations the amount of gain compensation necessary to mainta...

Страница 124: ...oulders of the peak Spacing values that are approximately 50 of the FWHM and window width that are approximately 80 of the FWHM are typical settings With Mirion s Genie Gamma Analysis application the...

Страница 125: ...ta acquired by the counters for the specified time interval is stored internally by the Lynx until requested and consumed by an external application Such as a custom application If the data is not req...

Страница 126: ...is Enabled Options are Internal or External as follows Internal means that the clock source is the internal 1 S clock External means that the clock source is defined by the External Sync input at the...

Страница 127: ...s When external synchronization is enabled the Lynx s SYNC connector becomes an output when Master A or Master B is selected and an input when Slave is selected Master A mode indicates that the extern...

Страница 128: ...hanger can also provide an advance pulse through the rear panel s CHGR ADV connector Figure 62 Sample Changer Hardware Settings Advance Polarity Sets the polarity of the Changer Advance TTL compatible...

Страница 129: ...rough the Preset Limit setting SCA s are independent of each other each SCA counts pulses from energy events that store within the PHA spectrum and occur within the SCA s upper and lower level discrim...

Страница 130: ...accessibility settings Diagnostics option displays information that may be used to diagnose problems Firmware Update option will provide the facilities to update the firmware MCA Information option li...

Страница 131: ...o change them as needed by your network requirements The settings have been grouped into the following categories Ethernet UpnP Web Ethernet The Ethernet tab contains all settings specific to the Ethe...

Страница 132: ...your PC If the Lynx is not visible the Time to Live setting may need to be increased Figure 65 UPnP Network Settings Web The Web tab contains web related settings for HTML5 application This tab allows...

Страница 133: ...any fault codes Faults typically latch meaning that once a fault develops the message will be retained until acknowledged and cleared In most cases fault codes can be acknowledged and cleared with th...

Страница 134: ...d thermistor input value as well as the status Figure 68 Reading Diagnostics Settings Any reading that is out of tolerance is highlighted in red The table is dynamically updated every few seconds Moni...

Страница 135: ...dating the Firmware Be sure that all acquisitions have been turned off before performing the update During the update the device will reset all communication and acquisition activities will be aborted...

Страница 136: ...Read only parameter reports the MCA Type as Lynx Serial Number Read only parameter reports the serial number of the Lynx Firmware Version Read only parameter reports the installed firmware version of...

Страница 137: ...ext file can be examined with a standard text editor such a Notepad Clicking on the Download button will download the Device log as a text file from the Lynx to your local computer Print Spectrum This...

Страница 138: ...assword and click on the Update button to make the change Backup and Restore This feature provides a Backup function for backing up the current Lynx acquisition settings into an XML file a Restore fun...

Страница 139: ...alue Click on the Select button and then enter a file name Click on OK to save the settings as a CSV file by default Note This is a Web browser specific setting that will download the file where the d...

Страница 140: ...feature displays the current version and Copyright date Reboot The Lynx will be rebooted similar to a power cycle Spectral data for PHA and MCS will not be affected however any residual data from Auxi...

Страница 141: ...nd extends the dead time for the duration of the inhibit signal OR the duration of an internal inhibit timer HV INH Preamp high voltage inhibit input connector BNC Accepts input from the detector prea...

Страница 142: ...quires TTL level active high or active low software selectable Requires that the acquisition has been armed through Start command Active signal begins or resumes acquisition Inactive signal suspends a...

Страница 143: ...ive low None disables coincidence Signal at GATE input has no effect on data storage Coincidence GATE signal active at the pulse processing storage time allows storage of the event Anti Coincidence GA...

Страница 144: ...al TTL signals to Auxiliary Counters 1 and 2 respectively Minimum pulse width is 25 ns maximum input rate is 20 MHz GP I O 3 by default provides ACQ OUT signal to drive lamp drivers It can also be use...

Страница 145: ...200 V can be active at a time HV Positive High Voltage output connector SHV Software selectable range of 150 1500 V dc or 1500 5000 V dc HV Negative High Voltage output connector SHV Software selectab...

Страница 146: ...et up before it is operational RS 232 is used for a Serial line connection or for Remote Modem connection using Remote Access Services RAS setup Its factory default URL is 10 0 0 1 Pin 1 DCDn Pin 2 RX...

Страница 147: ...rgy range for the application overall gain is continuously adjustable from x1 6 to x516 3 based on a 2 V full scale Upper gain adjustment is comparable to a x2581 5 setting on a traditional analog amp...

Страница 148: ...he baseline restorer AUTO System is gated off for the greater of the external RESET signal OR the Internal Inhibit Time MANUAL Functionality same as Auto mode except the signal processor is inhibited...

Страница 149: ...ge 109 for more details SLOW DISC SETTING Active when SLOW DISC MODE is set to MANUAL sets the Slow Discriminator threshold level range is 0 to 100 This feature is useful to expose processing of very...

Страница 150: ...rovided as a user aid when optimizing the pole zero setting The oscilloscope reconstructs the tail of the trapezoid signal thus providing visual feedback that shows the quality of the pole zero adjust...

Страница 151: ...qualifier When enabled checked the capture trigger is further qualified by the absence of pile up events TRIGGER MODE Defines whether the capture is CONTINOUS or SINGLE sweep When set to SINGLE the d...

Страница 152: ...ectrum More specifically Minimum CENTROID MINCH WINDOW SPACING 2 Maximum CENTROID MAXCH WINDOW SPACING 2 Where MINCH is the minimum spectrum channel number 1 and MAXCH is the maximum spectrum channel...

Страница 153: ...hronization EXTERNAL SYNC STATUS Disables or Enables the main synchronization electronics within the Lynx External Synchronization must be enabled when synchronizing multiple Lynx units Settings are D...

Страница 154: ...eived for the selected timeout then a fault condition will be asserted by the Lynx Range is from 2000 to 2 147 483 648 milliseconds Performance Signal Processing SPECTRUM BROADENING The FWHM of 60 Co...

Страница 155: ...ice s conversion specified amount Positive selection shifts the spectrum up negative selection shifts the spectrum down PRESET Real or Live Time timers with range of 0 01 s to 11930 hr with 0 01 s res...

Страница 156: ...erived from the uncorrected spectrum This results in a better estimate of the error than if the computation were performed using the corrected spectrum due to the non Poisson nature of the corrected s...

Страница 157: ...is open circuit or active high 1 2 V to 24 V With Negative polarity selected an open input will disable the high voltage Individual connectors for positive HV and negative HV high range 1500 V output...

Страница 158: ...x 21 3 x 27 4 cm 3 5 x 8 4 x 10 8 in H x W x D For rack mounting purposes this is one half width of a standard 19 inch electronics cabinet wide by 2U high two units may be configured for side by side...

Страница 159: ...by EN 61010 Installation Category I Pollution Degree 2 Ordering Information LYNX MCA Digital Signal Analyzer If using Genie 2000 software optional requires Genie 2000 V3 1a or later Options LYNX SDK O...

Страница 160: ...ctions USB RNDIS protocol and Serial RS 232C RAS protocol control For performance reasons ease of connectivity reliability and interface availability the preferred connection method is Ethernet Please...

Страница 161: ...le refers to a red CAT5 cable that is typically used to connect a PC directly to a device such as a Lynx or Osprey Straight through Ethernet network cable refers to a CAT5 cable color may vary that is...

Страница 162: ...initialize The Lynx is ready for communication when its POWER Led stops blinking 2 Disconnect your PC s network adapter from the existing connections 3 Connect the Ethernet crossover cable red cable p...

Страница 163: ...r PC in a computer to computer network configuration Pinging the Lynx A simple and effective method to determine the success of the connectivity is to use the PING utility if available on your PC To u...

Страница 164: ...ication between the PC and Lynx has been properly established the Web Client application will download into the browser and begin executing a connection message similar to that below should appear as...

Страница 165: ...ery then the Lynx s UPnP operation should be enabled as UPnP can help identifying and connecting to devices on the network When shipped from the factory the Lynx s UPnP operation is typically enabled...

Страница 166: ...tilize DHCP See section below Change Lynx s Universal Plug and Play UPnP Settings Lynx parameters associated with the UPnP discovery are the UPnP Enable UPnP Friendly Name and UPnP Time to Live settin...

Страница 167: ...Name and UPnP Time To Live UPnP Friendly Name and Time To Live TTL Settings The UPnP Friendly Name will be used by Window s UPnP discovery to identify a specific Lynx on the network The name will app...

Страница 168: ...er to the appropriate system documentation on changing network adapter settings if necessary 2 At the Network Connections page locate and select the Network Adapter icon corresponding to the network c...

Страница 169: ...a later section Regardless of which connection method is used between the PC and Lynx an Internet Browser running on your PC will be used in all cases to communicate with and setup the Lynx Connect Y...

Страница 170: ...Script Enable Java Tools Preferences Advanced History Memory cache Off Disk cache Off Check documents Always Check images Always Tools Preferences Advanced Cookies Accept cookies Delete new cookies wh...

Страница 171: ...the network are informed of the Lynx s presence and status Notes In order to use the UPnP feature it must first be set up and active on your Windows XP or newer PC operating system Earlier versions o...

Страница 172: ...g in the chevron symbol and enable the network discovery as shown below 5 Click Save changes and exit dialog to complete the installation Network discovery requires that the DNS Client Function Discov...

Страница 173: ...erface is not supported by 64 bit Operating Systems This section describes how to set up a USB PC to Lynx communications via USB connection to a Windows PC Windows 2000 XP and Vista are supported USB...

Страница 174: ...loaded from the Lynx s storage by following the steps below 1 Connect the Lynx to your network and access the HTML5 web page at the following URL http 10 0 0 3 2 Log In to the Lynx as administrator if...

Страница 175: ...ail When successful the installation will create an adapter labeled DSA3K USB Remote NDIS 2 Skip this step if the Lynx USB driver installation was successful Depending on the operating system you may...

Страница 176: ...e USB connection functions Wait until it appears to complete this process 5 Right click on the My Network Places icon and select Properties This will bring up the Network Connections window 6 Right cl...

Страница 177: ...fy you in which case select a new setting within your subnet mask range 1 255 but use 11 or higher as the lower numbers are most likely already assigned to other devices For example if 10 0 0 10 confl...

Страница 178: ...nning on the PC can be used to access and control the Lynx For simplicity in describing the different RS 232 connections in this manual a wired RS 232 connection is described as a Serial Connection an...

Страница 179: ...ur Windows steps may differ somewhat from the examples given Even though RAS defaults to enabled there is no default operation available to establish an initial connection RAS must be configured befor...

Страница 180: ...ry in your PC 1 Right click on the My Network Places desktop icon on your PC s desktop and then select Properties 2 Select the Create a new connection link in the Network Tasks pane Figure 77 Creating...

Страница 181: ...er s Manual 9240227J 171 3 The New Connection Wizard will open Select its Next button Figure 78 The New Connection Wizard 4 Select the Set Up an Advanced Connection option Click Next Figure 79 Selecti...

Страница 182: ...User s Manual 9240227J 5 In the next screen select the Connect Directly to Another Computer option Click Next Figure 80 Selecting the Advanced Connection Options 6 In the next screen select the Guest...

Страница 183: ...The System Name for the Lynx was set up previously under the Setup System Enter that name Lynx here Click Next Figure 82 Entering the System Name 8 In the next screen select Communications Cable Betwe...

Страница 184: ...9 Now specify that anyone can use the connection and click Next Figure 84 Making the Connection Available 10 Click Finish to exit the Connection Wizard Figure 85 Completing the Wizard 11 Continue ont...

Страница 185: ...example the name of this page is Connect Lynx 1 In the Connect Lynx screen on your PC enter in the RAS Account Name you entered previously to access the Lynx Login with the User name of user and Passw...

Страница 186: ...ween two computers item is selected and click the Configure button Figure 87 Windows RAS Settings 4 Scroll down the Maximum Speed list to 57600 Click OK Figure 88 Configuring the Communications Settin...

Страница 187: ...ame field and password in the Password field then click Connect Figure 89 Connecting the Lynx Reminder These Lynx settings for RAS may be changed at Lynx Menu Network RAS tab in the Accounts section a...

Страница 188: ...nection RAS must be configured before this service will be functional Default RAS Parameters for Lynx Factory defaults set in Lynx are used to establish RAS connections in this section The default RAS...

Страница 189: ...ual 9240227J 179 2 Select the Create a new connection link in the Network Tasks pane Figure 90 Create a New Connection from My Network Places 3 The New Connection Wizard will open Select its Next butt...

Страница 190: ...DSA User s Manual 9240227J 4 Select the Connect to the Network at my Workplace option Click Next Figure 92 Selecting the Connection Option 5 In the next screen select Dial up Connection Click Next Fig...

Страница 191: ...ystem Enter that name Lynx here Click Next Figure 94 Entering the Connection Name 7 Enter the telephone number you ll use to make this connection Click Next Figure 95 Entering the Number of the Modem...

Страница 192: ...DSA User s Manual 9240227J Note If your computer does not have the smart card option skip this step Figure 96 Choosing No Smart Card 9 Now specify that anyone can use the connection and click Next Fi...

Страница 193: ...S 232 Configuration Ensure that you have your External Modem connected to the RS 232 port on the rear of the Lynx unit and that you have your telephone line connection in place Your modem parameters m...

Страница 194: ...to the modem type user in the User Name field and password in the Password field then click Dial Reminder These Lynx settings for RAS may be changed at Lynx Menu Network RAS tab in the Accounts secti...

Страница 195: ...he Properties button to select the modem The Lynx Modem Properties window will open Figure 100 Modem Properties with RAS Setup 3 From the General tab press Configure and set the Modem options Click OK...

Страница 196: ...Setting the Modem Security Options After installing the Modem Connection you should verify modem operation to Lynx by dialing the telephone number for the modem After the modem answers it should conn...

Страница 197: ...nx telephone number and the Lynx will answer the Modem Call RAS will establish the connection between the PC and the Lynx 5 The Caller will gain access the Lynx by logging in using the RAS account use...

Страница 198: ...may contain update information that may be version specific Please note that some firmware updates may force parameters back to their factory default settings Please backup your parameters as needed b...

Страница 199: ...s separated by less than 500 ns If the fast discriminator detects two or more events within the processing time of the slow channel the event is contaminated by pileup and is discarded The fast discri...

Страница 200: ...spectral file or print the spectrum or make note of the background counts and sum peaks for comparison with the LTC set OFF 9 Set the LTC to OFF clear the memory and set acquire to ON Accumulate a spe...

Страница 201: ...ct of affecting the spectral low energy cutoff On the Lynx the LT Trim function allows minor adjustment of the pulse evolution time or dead time of the digital trapezoid signal to normalize the fast a...

Страница 202: ...ctrum for 500 live seconds and record the net area of source A 9 Compare the net area of the 1173 2 keV 60 Co peak acquired in step 6 and compute the percentage change 10 If improvement is needed try...

Страница 203: ...ion 8 selections ranging from 1 1 to 2 5 are provided TR Filter Rise Time selection TFlat Top Filter Flat Top selection With the default minimum PUR GT setting 1 1x the pile up reject interval and the...

Страница 204: ...ts this behavior will become corrupted or distorted when minimal guard time is selected In this case the spectral peaks will be distorted with excessive high or low side tailing at high count rates Ev...

Страница 205: ...just range is 1 1x to 2 5x the default setting is 1 1x PUR Guard Adjustment Using a Live Spectrum As mentioned earlier detector preamplifier induced effects on the trailing edge of the shaped signal w...

Страница 206: ...tion which requires no compensation If the preamplifier type selected is RC and the Lynx is connected to a reset preamp the P Z setting must be manually set to a value of zero 0 Note Once the Pole Zer...

Страница 207: ...put count rate range The restorer can also be set to three manual settings SOFT MEDIUM and HARD These setting can be used to manually optimize the BLR response for a specific detector and count rate a...

Страница 208: ...reamp cover and change jumper plug W1 from position A to position B Jumper plug W1 is located on the main PC board next to RV1 3 When done reinstall the preamp cover and reconnect the preamp to the Ly...

Страница 209: ...Reset Preamp The optimum system inhibit time can be set automatically by the Lynx or adjusted manually using the TRP Inhibit adjustments located on the fourth page of the MCA Adjust Gain screen in th...

Страница 210: ...scilloscope and set the trigger source to Inhibit When using this trigger source make sure that the TRP INH output of the reset preamp has been connected to the Lynx Reset input Otherwise the oscillos...

Страница 211: ...ximately 45 s with the Lynx Rise Time set to 5 6 s Flat Top set to 0 8 s Coarse Gain of x304 find closest Lynx value and using a Mirion Model 2101 preamp and 60 Co source For this example the Inhibit...

Страница 212: ...g one Rack Mount Kit The rack mount kit includes the rack mount brackets with handles a half rack filler and coupling screws Figure 108 Several 2U Rows of Lynx Units in a 19 inch Rack If rack mounting...

Страница 213: ...a 2 Phillips screwdriver You will also use mounting hardware from your rack system to mount the joined components into your rack Using two of the provided socket head cap screws SHCS connect the fille...

Страница 214: ...and discard the rubber feet from the bottom of the Lynx unit Install the joined components in any 2U 3 5 inch opening into the front of your equipment rack using your Rack s mounting screws Finally c...

Страница 215: ...contact any circuit boards or components inside the Lynx unit with your Allen wrench Using two of the provided socket head cap screws SHCS you will join the right Lynx to the left Lynx as facing them...

Страница 216: ...t Replace the cover on the right side Lynx unit using its original screws Remove and discard the rubber feet from the bottom of the Lynx units Install the joined components in any 2U 3 5 inch opening...

Страница 217: ...ssing by Genie applications or ANSI N42 42 standard used for radiation detectors The Lynx supports both CAM and N42 data formats through the legacy HTML web page located at the following address http...

Страница 218: ...required complete initialization Any values previously stored in the battery backed memory have been reset to default state Method 1 Update Firmware via Firmware Updater Utility Firmware Updater util...

Страница 219: ...t from Tools Windows10 folder 6 When prompted provide IP address of the Lynx you choose to update firmware for 7 Wait for the process to complete and then wait a min or 2 more for Lynx to reboot and i...

Страница 220: ...aults to administrator These p and u parameters are supposed to be used when the default password had been changed f string file string Update file name with full path defaults to NK bin located in th...

Страница 221: ...N firmware files are located under the Firmware folder of the supplied media Important For this procedure the DISK BIN file must be used The PC must have firewall disabled or otherwise the TFTP upload...

Страница 222: ...old Ctrl C keys on your desktop computer that is connected via serial to the device until the terminal utility shows the ARMmon prompt If not successful repeat the step as many times as necessary Be s...

Страница 223: ...e power to the Lynx The Lynx should boot normally to the newly updated image 13 Once the update is complete you must flush the browser s cache After the browser s cache is flushed the browser must be...

Страница 224: ...y status is highlighted in red and the batteries will need to be replaced The following procedure describes how to replace the batteries in the Lynx Lynx Battery Replacement To replace the batteries 1...

Страница 225: ...Manual 9240227J 215 4 Remove and replace the battery on the MCA board 5 Reassemble the unit 6 Connect to the Lynx and configure the IP address to what it was before refer to the Communication Setup A...

Страница 226: ...n area Compliant grounding and safety precautions for any internal power distribution The use of NRTL CE compliant accessories such as fans UPS etc Preventive Maintenance This unit does not require an...

Страница 227: ...the limits for a class A digital Device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a...

Страница 228: ...that this equipment does not pose a threat to the environment or to humans when it becomes obsolete and requires disposal The symbol below also found on your equipment indicates that this equipment s...

Страница 229: ...ns 90 Discovering the Lynx 43 50 Display preferences 92 DSP filter settings 61 DSP gain settings 56 109 E Editing MCA settings 35 Entering detector input name 51 IP address UPnP name 48 MID file name...

Страница 230: ...onfiguring the detector 51 configuring the MCA 48 entering the MID file name 52 selecting the MCA 48 Modem connection 186 191 Multiple MCA configurations 36 N N42 file format 215 Navigator view 82 Acq...

Страница 231: ...m 117 typical setup sequence 121 System connections 70 U Universal Plug and Play UPnP 74 installing on Windows 7 169 settings 129 Updating the firmware 216 USB 75 USB driver installing 171 V Verifying...

Страница 232: ...222 Lynx DSA User s Manual 9240227J Notes...

Страница 233: ...OTHERWISE SHALL APPLY IN NO EVENT SHALL WE HAVE ANY LIABILITY FOR ANY SPECIAL EXEMPLARY PUNITIVE INDIRECT OR CONSEQUENTIAL LOSSES OR DAMAGES OF ANY NATURE WHATSOEVER WHETHER AS A RESULT OF BREACH OF...

Страница 234: ...ource code therefor b disclose disseminate grant access to copy reproduce deliver transmit publish display sublicense assign or otherwise transfer any Company Property including without limitation the...

Страница 235: ...in violation of any applicable laws or regulations Licensee hereby agrees to indemnify and hold the Company harmless from all claims damages fines penalties costs and expenses including attorneys fee...

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