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Figure 1.  The digiBASE-E Connectors.

2.  GETTING STARTED

2.1.  The digiBASE-E

Figure 1 shows the digiBASE-E connectors on both the top and bottom panels, including the pin
assignments for the socket base, which accepts JEDEC B14-38 PMT pin bases (Table 1). The
digiBASE-E operates on Power over Ethernet (PoE). The CAT5E Ethernet cable runs to a
single-port PoE injector that requires an ac power source (see the specifications in Chapter 4).

2.2.  Data Acquisition (Gate) Modes

In multi-detector measurement systems, there is often a need to synchronize data acquisition (for
example, in a mobile gamma-ray search system the data from all detectors must be correlated to
correctly map the activity distribution over an area). The digiBASE-E provides flexible gating
features; events from multiple spectrometers may be correlated to within <100 milliseconds.
This is achieved by the use of a gate input and a gate output.

d1–d10

dynodes 1–10

a

anode

i.c.

internal connection

g

grid

k

cathode

Table 1.  JEDEC B14-38 PMT Pin Base Pinouts.

Содержание digiBASE-E

Страница 1: ...3 Manual Revision C NOTICE OF PROPRIETARY PROPERTY This document and the information contained in it are the proprietary property of AMETEK Inc ORTEC Business Unit It may not be copied or used in any...

Страница 2: ...that a Return Authorization Number can be assigned to the unit Also ORTEC must be informed either in writing by telephone 865 482 4411 or by facsimile transmission 865 483 2133 of the nature of the f...

Страница 3: ...ONS Driver Update Kit 9 2 3 2 Steps 2 Optional and 3 Install Your Spectroscopy Applications 9 2 3 3 Steps 4 through 7 Hardware Setup and Installation 9 2 3 4 Step 8 Use the DeviceController Program to...

Страница 4: ...2 2 Cannot Communicate with MAESTRO or ScintiVision 32 26 4 SPECIFICATIONS 27 4 1 Performance 27 4 2 Inputs 28 4 3 Use with Lanthanum Chloride and Lanthanum Bromide Detectors 28 4 4 Computer Controls...

Страница 5: ...personal injury and or damage to equipment or other property These are DANGER Indicates a hazard that could result in death or serious bodily harm if the safety instruction is not observed WARNING Ind...

Страница 6: ...vi...

Страница 7: ...ed data acquisition is needed Events can be correlated to 100 milli seconds This makes the digiBASE E ideal for remote monitoring applications and detector networks and arrays 1 1 digiBASE E Advantage...

Страница 8: ...ge of data when this input is True Trigger mode ACQ gate In this mode application of a True pulse to the gate starts data acquisition Routing mode In PHA mode the presence of a True level results in d...

Страница 9: ...6 08 or later communicating via CONNECTIONS v6 12 or later The digiBASE E connects via an RJ45 8P8C port and can be used on any PC running 32 or 64 bit Windows 7 or XP Professional SP3 NOTE You must h...

Страница 10: ...digiBASE E High Performance Power over Ethernet Multichannel Analyzer PMT Base for Scintillation Detectors 4...

Страница 11: ...ecifications in Chapter 4 2 2 Data Acquisition Gate Modes In multi detector measurement systems there is often a need to synchronize data acquisition for example in a mobile gamma ray search system th...

Страница 12: ...ormally but no counts are stored in memory When Input A is high normal acquisition occurs Can be used within MAESTRO EventCounter Input A acts as a 32 bit rising edge event counter for LVTTL pulses Th...

Страница 13: ...e master unit from the slaves 2 3 Software and Hardware Installation Installation takes just a few straightforward steps See the quick reference diagram in Fig 2 1 Install the accompanying CONNECTIONS...

Страница 14: ...digiBASE E High Performance Power over Ethernet Multichannel Analyzer PMT Base for Scintillation Detectors 8 Figure 2 Installation Quick Reference...

Страница 15: ...pectroscopy Applications Next install the ORTEC software applications on the PC that will control the digiBASE E 2 The digiBASE E is supplied with MAESTRO However if you will also be installing Scinti...

Страница 16: ...ion tells how to use the Ethernet DeviceConnection program to locate all powered on digiBASE Es on the network and attach to the units you wish to control from your PC This attachment process flags th...

Страница 17: ...DeviceController exe file Figure 4 shows the initial screen Click on the Find All digiBASE Es button Within 10 20 seconds the screen will update with all located powered on digiBASE Es Figure 5 shows...

Страница 18: ...or the digiBASE Automatic assignment of a dynamic IP address by your network s Dynamic Host Configuration Protocol DHCP server Manual assignment of a static IP address Dynamic We recommend using the D...

Страница 19: ...his period Windows will typically display an acquiring network address message in the lower right corner of the screen If using multiple digiBASE Es on a non networked PC all will initially have the s...

Страница 20: ...ustomizing MCB ID Numbers and Descriptions changing your Windows firewall settings to allow MCB access across a network enabling additional device drivers and troubleshooting 1 Make sure the digiBASE...

Страница 21: ...umber 4 Click on OK See the CONNECTIONS Driver Update Kit for instructions on customizing ID Numbers and Descriptions or simply click on the Renumber New button to renumber only the new instruments NO...

Страница 22: ...twork and connect it to another see also the IMPORTANT note on page 10 However if moving a digiBASE E with a manually assigned static IP address to a network or PC with a different subnet address be s...

Страница 23: ...am or PC on the network can modify this value NOTE The changes you make on most property tabs take place immediately There is no cancel or undo for this dialog 3 1 1 Amplifier Figure 8 shows the Ampli...

Страница 24: ...ing the rise time has the effect of spreading or narrowing the quasi trapezoid symmetrically The Flattop Width adjusts the width of the top of the quasi trapezoid from 40 ns to 2 0 s in 40 ns steps Th...

Страница 25: ...is high The B output can be used to control a sample changer AcqTrigger Once software initiates the data acquisition process actual data acquisition does not start until the Input A signal transitions...

Страница 26: ...nction when the adjustment value reaches 100 the stabilizer cannot make further corrections in that direction The Center Channel and Width fields show the peak currently used for stabilization To enab...

Страница 27: ...oltage in the Target field click On and monitor the voltage in the Actual field Click the Off button to turn off the high voltage 3 1 6 About This tab Fig 13 displays hardware and firmware information...

Страница 28: ...he presets can only be set on an instrument that is not acquiring data during acquisition the preset fields are disabled You can use either or both presets at one time To disable a preset enter a valu...

Страница 29: ...s counting until the count is manually stopped Enter the ROI Integral preset value in counts With this preset condition the MCA stops counting when the sum of all counts in all channels marked with an...

Страница 30: ...e list of network protocols Fig 17 and select Properties Figure 18 shows the TCP IP properties dialog Select the Use the following IP address option i e the option that allows you to manually enter th...

Страница 31: ...d close the device controller program window Return to your PC s TCP IP properties dialog Fig 18 and either re select the Obtain an IP address automatically setting or return the manual entry to its o...

Страница 32: ...Find All digiBASE Es button and make sure the program locates the digiBASE E by serial number If the IP address lease has expired this will assign a new IP address If the device controller program gen...

Страница 33: ...c in steps of 1 25 V under computer control with read back of actual voltage Offset Drift 50 ppm of full scale range per C Gain Drift 150 ppm per C Digital Filter Shaping Time Constants Rise time 600...

Страница 34: ...operties in MAESTRO see Section 2 2 Input impedance is 1 k to 3 3 V protected to 5 V B OUT A second SMA connector with nominal 100 output Z provides a bridged output for the signal provided to the A I...

Страница 35: ...s susceptibility and low voltage power directives Synchronous Operation Up to 12 digiBASE Es can be daisy chained with one unit assigned the SyncMaster gate mode SET_GATE 7 and all slaves assigned the...

Страница 36: ...agement commands 23 Battery status support SHOW_STAT_BATT 24 Software selectable AMP polarity SET SHOW_GAIN_POLAR 25 Support for flattop optimization ENA DIS_OPTI 26 Stoppable AutoPZ STOP_PZ_AUTO 27 N...

Страница 37: ...SET VERI_WIDT_REJ 57 Alpha style HV power SHOW_HV_CURRENT 58 Software readable vacuum SHOW_VACUUM 59 Acquisition alarms ENA DIS SHO_ALARM 60 Hardware acquisition trigger ENA DIS SHO_TRIG 61 Ordinal nu...

Страница 38: ...HOW LIST_VIEW in new ZDT and GATE routing MCBs with DPM or RS 232 94 Connected to MCB via RS 232 slow port 95 No SET_HV_POSI SET_HV_NEGA ENA_NAI DISA_NAI Beginning of 4th word 96 Low Frequency Rejecte...

Страница 39: ...4 SPECIFICATIONS Bit Meaning 33 113 ID Reports DO_ID SHOW_REPORT SHOW_REPO_LINES 114 Has Neutron Detector SHOW_CRM 2 returns valid number 115 List Mode data streamed and formatted like DIGIBase E...

Страница 40: ...digiBASE E High Performance Power over Ethernet Multichannel Analyzer PMT Base for Scintillation Detectors 34...

Страница 41: ...rds Commands consist of a command header that may be followed by numeric parameter values The header consists of a verb or a verb and noun separated by an underscore or a verb noun and modifier each s...

Страница 42: ...ror code numbers and a 1 byte checksum as follows aaabbbccc CR where represents the ASCII character aaa represents the macro error code bbb represents the micro error code ccc represents the checksum...

Страница 43: ...and verb and noun 129004085 CR Invalid command modifier 129005086 CR Invalid command verb and modifier 129006087 CR Invalid command noun and modifier 129007088 CR Invalid command verb noun and modifie...

Страница 44: ...yyy ccc CR Response to SHOW_CONFIGURATION command Mxxxxxxxxxx ccc CR Response to SHOW_STATUS command Nxxxyyyzzzccc CR xxx yyy and zzz are 8 bit unsigned numbers 5 1 4 Command Catalog This section list...

Страница 45: ...nd was attempted while spectrum acquisition was in progress No action was taken CLEAR_COUNTER Sets the live time and true time counters to zero CLEAR_DATA Sets the channels of spectral data to zero Th...

Страница 46: ...justment is held at its current value until either zero stabilization is reenabled with the ENABLE_ZERO_ STABILIZATION command or reinitialized with INITIALIZE_ZERO_ STABILIZATION or SET_ZERO_PEAK See...

Страница 47: ...O_STABILIZATION INIT Resets the digiBASE E to factory defaults INIT_GAIN_STABILIZATION Resets the gain peak stabilization adjustment to 1 0 no adjustment This value is reported as 0 by the SHOW_GAIN_A...

Страница 48: ...r used with the SET_GATE command See also SHOW_GATE Response GATE None AcqCntrol AcqTrigger CoincGate EventCounter Routing Sync SyncMaster LIST_HV Lists the valid high voltage settings digiBASE E acce...

Страница 49: ...red in InSight mode Response 000128080 No waveform was available 000000069 New waveform was successfully captured SET_DATA start chans value If the optional start and chans parameters are included in...

Страница 50: ...The specified channel number would create a peak that was less than the minimum width 3 channels or would be outside the device s range 131136084 CR The command was attempted while gain stabilization...

Страница 51: ..._GATE value Sets the gate to a value from 0 to 7 according to the gate order displayed with LIST_GATE See also SHOW_GATE The gate modes are discussed in Section 2 2 See also SHOW_GATE and LIST_GATE Le...

Страница 52: ...e also SHOW_LLD SET_MODE_LIST Puts the unit in List mode as opposed to InSight or PHA Mode In List mode individual peak values are stored along with the time the pulse arrived are stored and transferr...

Страница 53: ...icroseconds ranging from 0 04 to 2 00 in steps of 0 04 See also SHOW_SHAP_FLAT SET_SHAP_RISE value Sets the rise time to value Value is in microseconds ranging from 0 6 to 2 00 in steps of 0 04 See al...

Страница 54: ...f interest are affected by commands such as CLEAR SET_DATA and WRITE If neither start nor length is provided the window is set to the maximum size allowed by the conversion gain specified The window o...

Страница 55: ...a peak that was less than the minimum width 3 channels or would be outside the device s range 131136084 CR The command was attempted while zero stabilization was enabled SHOW_ACTIVE Returns a 1 if the...

Страница 56: ...is returned The response is a F record Execution Errors 131138085 CR The specified string could not be matched SHOW_DET_TEMP As of this release functions for special order Scionix detector with Rodan...

Страница 57: ...sponse GAIN_FINE 000000 44439999 Fine gain is set to 04444 SHOW_GAIN_POLARITY Returns the polarity of the amplifier input as F records Responses IPOS CR Always positive in digiBASE E SHOW_GAIN_STABILI...

Страница 58: ...t decimal number with the following bit definitions Bit 0 LSB Bias supply polarity 0 positive 1 negative Bit 1 Bias supply overload 0 overload 1 normal Bit 2 High voltage enabled 0 disabled 1 enabled...

Страница 59: ...reported as 0 G4294967294131 CR Integral reported as 4294967294 G4294967295132 CR Integral reported as greater than or equal to 4294967295 maximum reportable value SHOW_INTEGRAL_PRESET Reports the cu...

Страница 60: ...0075 CR Live time remaining reported as disabled G0000000001076 CR Live time remaining reported as 1 tick G4294967295132 CR Live time remaining reported as 4294967295 ticks SHOW_LLD Shows the lower le...

Страница 61: ...s at channel 1000 and is 50 channels long D0215000150086 CR Next ROI group starts at channel 2150 and is 150 channels long D0000000000072 CR No other ROI groups to report SHOW_OUTPUT Reports the statu...

Страница 62: ...ls that have the ROI flag set The response is of the form Dsssssnnnnnccc CR where sssss represents an integer number that is the number of the first channel of the first group of channels that all hav...

Страница 63: ...or the current device as returned by the SHOW_TRUE command aaaaa represents the active device mask as returned by the SHOW_ACTIVE_DEVICES command and hhhhh represents the hardware status which is an A...

Страница 64: ...led G0000000001076 CR True time preset reported as 1 tick G4294967295132 CR True time preset reported as 4294967295 ticks SHOW_TRUE_REMAINING Reports the current true time remaining in units of 20 mil...

Страница 65: ...el 0 and continuing for 512 channels first 1 2 D0051200512088 CR Window of interest reported as starting at channel 1024 and continuing for 512 channels last 1 2 SHOW_ZERO_ADJUST Returns percentage ad...

Страница 66: ...was exceeded acquisition was not started 000032074 CR High voltage is disabled The actual response record may be a combination of any of the above records depending on the warning conditions STEP_OUTP...

Страница 67: ...RD and p n 921007 Orient the digiBASE so the tube socket faces away from you In this orientation when the jumper bridges the left most and center pins the coarse gain is 1 When the jumper bridges the...

Страница 68: ...in Jumper Replace the washer and nut on the A INPUT and B OUTPUT connectors Note the new coarse gain setting for this unit There is no software based way to read this setting i e you must remove the s...

Страница 69: ...ntact your ORTEC representative or our Global Service Center to obtain sample C code showing how to start list mode acquisition retrieve raw data from the digiBASE E save the data to disk and parse th...

Страница 70: ...s own internal clock when operating multiple digiBASE Es together they tend to diverge The sync pulse is used to correct the divergence 64 Second word Data 31 30 1 Data 29 0 Livetime 29 0 External Syn...

Страница 71: ...Gate AcqControl 6 19 AcqTrigger 6 19 CoincGate 6 19 EventCounter 6 19 none off 6 19 Routing 6 19 SET_GATE 45 SET_VIEW 6 7 48 Sync 7 SyncMaster 7 High voltage 21 InSight Mode 18 mark types 18 Installa...

Страница 72: ...digiBASE E High Performance Power over Ethernet Multichannel Analyzer PMT Base for Scintillation Detectors 66...

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