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Chapter 6

Timing Modes

45

Laser trigger

HV gate pulse

CCD readout

0

Acquire

Readout

Time

0

0

Not scan
(Shutter in ST-138)

Example 3

This example is appropriate for experiments where the laser is particularly jittery, and
thus not able to regulate the overall timing. Here the controller is the master, directly
controlling the laser and indirectly the pulser.

Laser (or other experimental equipment)

HV Gate Pulser

Controller

Trigger in

SHUTTER MONITOR (ST-130,
ST-133, ST-138, PentaMAX)

The controller is in the Freerun mode, and SHUTTER MONITOR from the rear panel of
the controller is connected to the experiment. SHUTTER MONITOR goes TTL high at
the beginning of each exposure cycle. The CCD readout will occur after exposure is
over. Since the controller is the master, the laser is inactive and the pulser will not trigger
during CCD readout.

Figure 10.

Timing example

depicted in

Figure 9.

Figure 11.

System

configuration

for experiments

having jittery

laser.

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Содержание Roper Scientific PG-200

Страница 1: ...derutilized and idle equipment along with credit for buybacks and trade ins Custom engineering so your equipment works exactly as you specify Critical and expedited services Leasing Rentals Demos In s...

Страница 2: ...Manual Version 2 Revision D August 11 1998 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Страница 3: ...Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Страница 4: ...22 Trigger Outputs 22 Front Panel Key Switches 23 Function Key Programs 24 Pulse Sweeping and Sequencing 27 Automatic System Settings 28 Front Panel Connectors 29 Rear Panel Connectors 29 Calibration...

Страница 5: ...rface Functions 69 WinView WinSpec Interface Form 69 Linkable Object Form 84 Appendix B Application Notes 89 High Repetition Rate Operation 89 Appendix C Stand Alone Executable Interface Functions 91...

Страница 6: ...r 45 Figure 12 Timing for example depicted in Figure 11 46 Figure 13 System configured for experiment with long or unpredictable delay 47 Figure 14 Timing for configuration illustrated in Figure 13 48...

Страница 7: ...vi PG 200 Operation Manual Version 2 D This page intentionally left blank Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Страница 8: ...lser Never operate the PG 200 without the ground prong of the supplied power cord plug making contact with an earth ground contact of a socket outlet i e never float the PG 200 To avoid shock or injur...

Страница 9: ...exceeded 50 C If this error message is observed power down the unit immediately and do not power up until the cause of the over heating is remedied The PG 200 is designed to drive only 1 M terminated...

Страница 10: ...ting of two detectors optional automatic sweeping of gate pulse delays and other automation and communications capabilities The PG 200 has been designed to drive ICCD detectors with 1M termination and...

Страница 11: ...ximity focused MCP image intensifier is shown in Figure 1 optically coupled to a CCD or diode array with a fiber optic window A fiber optic taper may also be used or a lens assembly In the Shutter mod...

Страница 12: ...signal from a photosensor directly The inherent internal delay time propagation delay i e the time duration from the triggering of the PG 200 to the time it produces the high voltage gating pulse To o...

Страница 13: ...internal trigger within 2 nsec Gate pulse delay external trigger mode Continuously adjustable in 1 nsec increments up to 80 msec Gate delay gate width cannot exceed a total time of 80 msec Typical mi...

Страница 14: ...curacy increments 1 sec 80 msec TTL compatible HC series TTL 5 V negative logic BNC output modifiable to 5 V positive width 1 sec rise fall times 7 nsec Pulse monitor Gate pulse timing reference with...

Страница 15: ...h voltage power supply must be adjusted for different gate pulse widths to maintain relatively constant gate pulse amplitudes If a high voltage overload condition occurs the supply is disabled and can...

Страница 16: ...ower switch on the rear panel The PG 200 should go through a boot up procedure including a partial self test Within about 10 seconds the display will show the READY indication although to realize the...

Страница 17: ...16 PG 200 Operation Manual Version 2 D This page intentionally left blank Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Страница 18: ...the oscilloscope amplifier to 1 volt division the pulse monitor signal is about 2 volts Connect the Internal Trigger Output of the PG 200 front panel to the external trigger input of the oscilloscope...

Страница 19: ...s per division About halfway across the oscilloscope screen on Channel B will be the delayed trigger output pulse 4 microseconds long Remember that it is normally configured for negative logic Pulsing...

Страница 20: ...n 2 and then E Enter Note that this is easy to remember as the label FREQ can be found on the front panel above the 2 key The screen will display INT TRIG FREQ _ 1000 Hz Move the cursor right using th...

Страница 21: ...AC DC coupling trigger level trigger polarity and input impedance controls operate like those on an oscilloscope When the PG 200 is being triggered by the external signal the Triggered LED will light...

Страница 22: ...sing INTERNAL TRIGGER OUT as an external trigger input rather than an internal trigger A cable must be connected from the INTERNAL TRIGGER OUT BNC connector to the external trigger input BNC This is p...

Страница 23: ...y be delays when reprogramming gate pulse widths for things such as readjusting the high voltage power supply recalibration of the time base etc Such delays do not apply when reprogramming gate pulse...

Страница 24: ...values are not being entered Pressing the key again or setting gate width to a value greater than zero causes pulsing to resume The DLY D TRIG key programs the DELAYED TRIGGER OUTPUT BNC for an output...

Страница 25: ...sec msec when the cursor is at a units descriptor increases decreases display speed when values are not being entered DLY D TRIG Programs DELAYED TRIGGER OUT for delays measured from the leading edge...

Страница 26: ...quency and gate delay gate width or delay out times 3 DIM PANEL Dims the front panel display and LEDs The display brightness can be set to levels 0 10 level 10 for maximum brightness and level 0 to tu...

Страница 27: ...PG 200 of new jumper configurations for proper calibration Jumper configurations are entered as follows DELAY OUT jumper field DLY D TRIGGER OUT 5 5 V negative logic 5 5 V positive logic 15 15 V negat...

Страница 28: ...ed function key Serves as backup in case of function key failure 94 TRIG LEVEL Same as dedicated function key Serves as backup in case of function key failure 100 CLEAR SEQUENCE Clears out previously...

Страница 29: ...is displayed will alternately freeze and unfreeze either sweeping or sequencing Automatic System Settings The PG 200 may require significant instrument setting time delays to perform some of its tasks...

Страница 30: ...MA type connector INHIBIT Pulsing inhibit Positive logic defaults to negative logic level if no connection i e pulsing is enabled if no connection INHIBIT Same as INHIBIT except negative logic Also de...

Страница 31: ...M inside the PG 200 PSAVE EXE saves the calibration values to disk The only time this has to be done is if a value has to be changed Do not change calibration values without first contacting the facto...

Страница 32: ...ogic 15v Negative logic 15v Positive logic 5 V standard 0 V 5 V 15 V 0 V 0 V 0 V 15 V 5v Negative logic 5v Positive logic 5 V standard 5 V 0 V 0 V Setting jumper fields The high voltage power supply g...

Страница 33: ...t Panel Board Normally configured for 5 V negative logic output but can be re configured for 5 V positive logic 15 V positive or negative logic The JUMPERS program must be run for proper calibration f...

Страница 34: ...pulse delay ADJ AUX DLY D TRG Adjusting AUX DLY D TRIG OUT to nearest legal value Varying gate delays especially near minimum values can cause delayed trigger outputs to vary by up to 25 nsec due to c...

Страница 35: ...d TIMERS CAL FAIL Unable to calibrate time base probably too large of a temperature correction is required SERIAL FAIL Serial interface communications failure UPPER BOUND Previous entry was out of ran...

Страница 36: ...Processor Board see Figure 2 on Page 36 Remove the PROM from the Processor Board Install the new PROM being careful not to bend any pins as you insert it into the socket Inspect the PROM for bent pin...

Страница 37: ...00 Operation Manual Version 2 D Delx Jumper Field Firmware PROM Battery Backed RAM Figure 6 PG 200 Processor Board Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisan...

Страница 38: ...nView WinSpec Interface and Linkable Object forms are described below Form Purpose WinView WinSpec Interface Interface to WinView or WinSpec through Macro Basic Linkable Object Object code which can b...

Страница 39: ...same routines that are contained in the Linkable Object form Therefore it is recommended that the Linkable Object be used by anyone interested in writing their own routines Artisan Technology Group Q...

Страница 40: ...and the third argument is a Unit Command Example Task Set a Pulse Width Assume the active Serial port to be COM 1 Using the WinView WinSpec Interface a command could be written in a Macro Basic Progr...

Страница 41: ...80 milliseconds This means that in order to determine if a width value is excessive the communication program would have to know delay value Also suppose a width value of 10 milliseconds was programm...

Страница 42: ...dictates the timing for the entire experiment The most common timing element is the image producing equipment in this case a laser If this component is not a convenient timing reference the controller...

Страница 43: ...rectly controlling the pulser which in turn controls the controller The controller is to be operated in the Ext Sync mode and the pulser Trigger out must be connected to the External Sync input at the...

Страница 44: ...3 Laser trigger HV gate pulse Trigger out CCD readout 0 0 0 Acquire Readout Time Figure 8 Timing for experiment depicted in Figure 7 Artisan Technology Group Quality Instrumentation Guaranteed 888 88...

Страница 45: ...s in the ICCD being gated Individual spectra one from each gate are accumulated on the array until exposure is over and readout starts SHUTTER MONITOR then disables the pulser preventing gating during...

Страница 46: ...Trigger in SHUTTER MONITOR ST 130 ST 133 ST 138 PentaMAX The controller is in the Freerun mode and SHUTTER MONITOR from the rear panel of the controller is connected to the experiment SHUTTER MONITOR...

Страница 47: ...readout Acquire Readout Time 0 Laser trigger 0 HV gate pulse 0 Not scan Shutter Monitor in ST 138 Figure 12 Timing for example depicted in Figure 11 Artisan Technology Group Quality Instrumentation G...

Страница 48: ...riggers the detector Immediately following gating the controller is triggered Following the completion of the exposure CCD readout begins The controller is operated in the Store Enable mode SHUTTER MO...

Страница 49: ...quire Readout Controller trigger to laser 0 Laser trigger HV gate pulse 0 0 Pulser trigger to controller 0 Figure 14 Timing for configuration illustrated in Figure 13 Artisan Technology Group Quality...

Страница 50: ...between the two pulses the detector can be gated at the proper time with respect to the laser pulse For experiments where laser triggering is almost instantaneous 7 sec the Frequency Out and the Dela...

Страница 51: ...out Acquire Readout Frequency out to laser 0 Laser pulse HV gate pulse 0 0 0 Delay frequency out Figure 16 Timing for system configuration depicted in Figure 15 Artisan Technology Group Quality Instru...

Страница 52: ...ee pulser manual for limiting values Once the computer activates the controller the pulser is enabled by the SHUTTER MONITOR output The Frequency Out pulse is sent to the experiment The Delayed Freque...

Страница 53: ...out Acquire Readout Frequency out to laser 0 Laser trigger out HV gate pulse 0 Delay frequency out 0 0 External sync Figure 18 Timing for configuration depicted in Figure 17 Artisan Technology Group Q...

Страница 54: ...e second channel triggers the pulser After gating the pulser can be used to trigger the controller which is in the External Sync mode or the controller can be left in the Freerun mode and SHUTTER MONI...

Страница 55: ...54 PG 200 Operation Manual Version 2 D This page intentionally left blank Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Страница 56: ...ed to seal out air to avoid arcing An open high voltage connector is a danger to personnel and can cause damage to the equipment Connections should be made before power is turned on Before disconnecti...

Страница 57: ...c and 1 msec electronic shuttering input for long gate times or CW operation Specifications MCP power supply 500 to 1000 volts 50 A maximum Intensifier bias levels Standard Configuration Phosphor 0 vo...

Страница 58: ...00 Upper and lower limit circuits for the MCP voltage Normally set to 500 V and 1000 V respectively Note When the image intensifier and MCP 100 option are purchased from Princeton Instruments as part...

Страница 59: ...etectors if the Shutter In BNC on the MCP 100 is allowed to float at 5 V the intensifier will be On continuously Overexposing the image intensifier at any time when the intensifier is turned on can re...

Страница 60: ...ck housing and a white stripe These cables are wired differently If you have purchased more than one image intensifier unit you must use the cable supplied with each image intensifier Intensifiers des...

Страница 61: ...60 PG 200 Operation Manual Version 2 D This page intentionally left blank Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Страница 62: ...ween the first and second pulse of less than 500 sec As the experiment begins Input 1 of the Combiner is connected to the Combiner output When a pulse is applied to Input 1 it goes to the Combiner out...

Страница 63: ...en the PG 200 Pulse Generators From that point on the Combiner works automatically as previously described Any remaining operating considerations apply primarily to the PG 200s and are directed toward...

Страница 64: ...e end of the first pulse to the start of the second can range from 1 sec to 500 sec with a 50 nsec gate width The delay set at PG 200 Input 2 must always be short enough to allow the second pulse to b...

Страница 65: ...64 PG 200 Operation Manual Version 2 D This page intentionally left blank Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Страница 66: ...proximately 0 8 V and 1 6 V ENABLE Input used on other Princeton Instruments products which when asserted high enables pulsing The corresponding input on the PG 200 is INHIBIT The negative logic inhib...

Страница 67: ...ic low levels represent a true or 1 logic state e g 5 V negative logic signals would be 5 V 0 0 V 1 Signal names describing negative logic signals are commonly indicated by a line over the signal name...

Страница 68: ...o trailing edge of high voltage gate pulses i e there is a fixed delay from gate pulse trailing edges to trigger out pulses TERMINATOR Resistor mounted at the receiving end of a cable to match the cha...

Страница 69: ...68 PG 200 Operation Manual Version 2 D This page intentionally left blank Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Страница 70: ...l hardware Return Type Integer Return Definition 1 Successful communication 0 Error in communication Status of this function V1 0 Example Trigger In __ __________ _____________ ____________ __________...

Страница 71: ...ay 10 uS rem Set pulse delay to 10 micro seconds let tmp PG200SETDEL 1 10 1 rem Set pulse width to 2 micro second let tmp PG200SETWID 1 2 1 rem Add Sequence point let tmp PG200ADDSEQ 1 rem trigger 3 n...

Страница 72: ...V1 0 Example See Example to PG200ADDSEQ PG200GATEEN PG200CLEARSEQ Gate flag to enable or disable a particular ports gate Parameters 2 Parameter 1 Type Integer Parameter 1 Definition Number of the seri...

Страница 73: ...pecial hardware Parameter 2 Type Integer Parameter 2 Definition Value to Set the internal trigger frequency to 2 9999 Hz Note Check the PG 200 hardware manual before selecting a value to set as it may...

Страница 74: ...tatus of this function V1 0 Example See example for PG200SETWID PG200SETAUXTRIG This function sets a Auxiliary Delayed Trigger Value on the PG 200 which is synchronized to the Trigger In To set this v...

Страница 75: ...Value on the PG 200 Parameters 3 Parameter 1 Type Integer Parameter 1 Definition Number of the serial port that the PG 200 is connected to 1 COM1 2 COM2 3 COM3 4 COM4 5 COM5 6 COM6 7 COM7 8 COM8 Port...

Страница 76: ...ected to 1 COM1 2 COM2 3 COM3 4 COM4 5 COM5 6 COM6 7 COM7 8 COM8 Ports 5 8 require special hardware Parameter 2 Type Float Parameter 2 Definition Delay Value to set Parameter 3 Type Integer Parameter...

Страница 77: ...Integer Parameter 3 Definition Units of the Starting Delay 0 Nanoseconds 1 Microseconds 2 Milliseconds Parameter 4 Type Float Parameter 4 Definition Step Size for Routine Parameter 5 Type Integer Par...

Страница 78: ...se N _______________________________________ __ _ rem Init com 1 for PG200 let tmp PG200SERIALINIT 1 rem Set trigger mode to external let tmp PG200TRGMODE 1 1 rem set pulse width to 50 nsec let tmp PG...

Страница 79: ...ire special hardware Parameter 2 Type Float Parameter 2 Definition Value to set Trigger to Parameter 3 Type Integer Parameter 3 Definition Units of the Trigger value 0 Nanoseconds 1 Microseconds 2 Mil...

Страница 80: ...Parameter 2 Type Float Parameter 2 Definition Delay Value to set Parameter 3 Type Integer Parameter 3 Definition Units of the Delay Value 0 Nanoseconds 1 Microseconds 2 Milliseconds Return Type Intege...

Страница 81: ...Integer Return Definition 1 Successful communication 0 Error in communication Status of this function V1 0 Example 0 usec 5 usec 1 usec Internal Trigger __ ___________________________________ Gate __...

Страница 82: ...ted to 1 COM1 2 COM2 3 COM3 4 COM4 5 COM5 6 COM6 7 COM7 8 COM8 Ports 5 8 require special hardware Return Type Integer Return Definition 1 Successful communication 0 Error in communication Status of th...

Страница 83: ...8 Ports 5 8 require special hardware Return Type Integer Return Definition 1 Successful communication 0 Error in communication Status of this function V1 0 Example See example for PG200ADDSEQ PG200SYN...

Страница 84: ...00TRGMODE Sets up the trigger mode for PG200 Parameters 2 Parameter 1 Type Integer Parameter 1 Definition Number of the serial port that the PG 200 is connected to 1 COM1 2 COM2 3 COM3 4 COM4 5 COM5 6...

Страница 85: ...set new pulse delay Number of Parameters 3 Parameter 1 Type Integer Parameter 1 Definitions Port number 0 COM1 1 COM2 2 COM3 3 COM4 Parameter 2 Type Float 5 2 digits Parameter 2 Definitions New delay...

Страница 86: ...er 2 Definitions New aux trigger value Parameter 3 Type Character Parameter 3 Definitions New units value N nanoseconds U microseconds M milliseconds This function returns a 1 for a successful communi...

Страница 87: ...cessful communication setintfreq set new internal trigger frequency Number of Parameters 2 Parameter 1 Type Integer Parameter 1 Definitions Port number 0 COM1 1 COM2 2 COM3 3 COM4 Parameter 2 Type Int...

Страница 88: ...n unsuccessful communication gateen enable disable gating Number of Parameters 2 Parameter 1 Type Integer Parameter 1 Definitions Port number 0 COM1 1 COM2 2 COM3 3 COM4 Parameter 2 Type Integer Param...

Страница 89: ...ameters 1 Parameter 1 type integer Parameter 1 definition Port number 0 COM1 1 COM2 2 COM3 3 COM4 skipseq skip a trigger during a sequence Number of parameters 1 Parameter 1 type integer Parameter 1 d...

Страница 90: ...y for meeting these conditions Pulse routine events A trigger pulse either internal or external is sensed by the PG 200 The PG 200 waits for the preset Pulse Delay period and then begins the high volt...

Страница 91: ...ec or 1 835 kHz These factors must all be considered when using the PG 200 In addition the user will note a marked decrease in the speed of the display This is because pulsing routines are assigned to...

Страница 92: ...jects forms which receive parameters the Stand Alone executables receive command line arguments In each case the first parameter or argument is the COM Port No error checking is done other than to che...

Страница 93: ...1 Definitions Port number 1 COM1 2 COM2 3 COM3 4 COM4 Parameter 2 Type Float 5 2 digits Parameter 2 Definitions New delay value Parameter 3 Type Character Parameter 3 Definitions New units value N nan...

Страница 94: ...er Parameter 1 Definitions Port number 1 COM1 2 COM2 3 COM3 4 COM4 Parameter 2 Type Integer Parameter 2 Definitions New Trigger mode value 0 internal trigger 1 external trigger pgsynmod exe set new sy...

Страница 95: ...number 1 COM1 2 COM2 3 COM3 4 COM4 Parameter 2 Type Float 5 2 digits Parameter 2 Definitions New starting delay Parameter 3 Type Character Parameter 3 Definitions New starting delay units N nanosecond...

Страница 96: ...n a pulsing sequence Number of parameters 1 Parameter 1 type integer Parameter 1 definition Port number 1 COM1 2 COM2 3 COM3 4 COM4 clearseq exe clear a pulsing sequence Number of parameters 1 Paramet...

Страница 97: ...96 PG 200 Operation Manual Version 2 D This page intentionally left blank Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Страница 98: ...y about once every 100 ms This slow rate occurs because polling the serial port is a low priority task The frequency of occurrence depends on other pulser operations such as pulsing routines and setti...

Страница 99: ...ey d Emulates down arrow key The following additional commands are valid only when the display indicates READY V Echo display through serial port Enable disable pulsing RS 232 Parameters Baud Rate 960...

Страница 100: ...r or replace at its sole option any defective parts without charge to you You must deliver the entire product to the Roper Scientific factory or at our option a factory authorized service center You a...

Страница 101: ...to twenty four 24 months from the date of shipment We warrant that the detector head will maintain the factory set operating temperature without the requirement for customer pumping Should the detecto...

Страница 102: ...r authorized service representative See Item 12 in the following section of this warranty Your Responsibility for more information Your Responsibility The above Limited Warranties are subject to the f...

Страница 103: ...ees agreements and similar obligations of manufacturer or seller with respect to the repair or replacement of any parts In no event shall Roper Scientific s liability exceed the cost of the repair or...

Страница 104: ...act information 102 Cursor 19 CW mode 10 Danger notices covers 7 floating operation 7 grounding 7 High Voltage 31 high voltage discharge time 7 lethal voltages 7 MCP 100 high voltage 55 outlet groundi...

Страница 105: ...nitor HV 27 Monitor Int Temp 27 Function key programs cont Pulse Seq Demo 27 Review Parameters 25 Set MCP Voltage 27 Skip Trig 27 Start Seq 27 Stop Seq 27 Sweep Check 26 Timers Cal 26 Trig Level 27 Tr...

Страница 106: ...KEYBD OVFL 34 LED 66 Lens coupled intensified detectors 55 Level Enter program 26 Level Pot En program 26 LEVEL POT program 23 LINE SYNC 66 Linkable object form serial interface functions addseq 87 cl...

Страница 107: ...l connectors cont HV Gate Out 2 29 Serial Intf 29 Rear panel features units having MCP 100 Bright Cntrol On Off switch 57 Gate In BNC connector 56 Intensifier HV PS connector 57 Shutter or CW Gate swi...

Страница 108: ...quency generator 49 laser pulses less frequent than CCD readout 42 system requiring two triggers 51 use of multichannel delaly generator to control experiment 53 Timing modes introduction 41 Trig Leve...

Страница 109: ...KIPSEQ 81 PG200STARTSEQ 81 PG200STOPSEQ 82 PG200TRGMODE 83 owner s manual and troubleshooting 101 sealed chamber 100 shutter 99 software 101 vacuum integrity 100 VersArray XP vacuum chamber 100 x ray...

Страница 110: ...101 vacuum integrity 100 VersArray XP vacuum chamber 100 x ray detector 100 your responsibility 101 Website 102 WinView WinSpec serial interface functions PG200ADDSEQ 69 PG200CLEARSEQ 71 PG200GATEEN 7...

Страница 111: ...uipment Have surplus equipment taking up shelf space We ll give it a new home Learn more Visit us at artisantg com for more info on price quotes drivers technical specifications manuals and documentat...

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