Head-on PMT Photon Counting Head H9319 Series The H9319 series photon counting heads are designed to perform photon counting by just connecting to a PC. The H9319 series includes a 25-mm (1") diameter head-on photomultiplier tube, a photon counting circuit, a high-voltage power supply circuit, counter and a microprocessor. Data transfer, measurement time and other necessary adjustments can be controlled by commands from the PC through the RS-232C interface. Since the H9319 series performs linearity correction by the internal microprocessor, it provides excellent count linearity within a range of ±1 % at 20 × 106 s-1. Product Variations Type No. H9319-01 H9319-11 H9319-02 H9319-12 Spectral Response 300 nm to 650 nm 300 nm to 850 nm Sample Program yes no yes no Prescaler 1/4 1/4 1/4 1/4 This product can't be used at vacuum environment or reduced pressure environment. Specifications Parameter Input Voltage Max. Input Voltage Max. Input Current Effective Area Peak Sensitivity Wavelength 300 nm 400 nm Count Typ. 500 nm Sensitivity 600 nm 700 nm Count Linearity *1 Typ. Dark Count *2 Max. PMT Operating Voltage Range Integration Time Settling Time Input Signal (External Trigger Input) *5 Output Signal (User Line Output) *6 Interface Operating Ambient Temperature *7 Storage Temperature *7 Weight *8 (at +25 °C) H9319-01 H9319-11 H9319-02 H9319-12 +4.75 to +5.25 +6 60 22 420 2.3 × 105 4.1 × 105 3.4 × 105 5.7 × 104 — 2.1 × 105 2.5 × 105 2.0 × 105 1.3 × 105 7.8 × 104 20 × 106 150 300 s-1·pW-1 s-1 10 000 15 000 +300 to +1200 10 to 1000 1 *3 5 *4 TTL level signal TTL level signal RS-232C, 9600 baud, Parity none, 8 data bit, 1 stop bit +5 to +50 -20 to +50 280 *1: Random pulse, within ±1 % count loss (by count linearity compensation) *2: After 30 minutes storage in darkness *3: The time required for the output to reach a stable level following a change in the control voltage from 500 V to 1000 V in darkness *4: The time required for the output to reach a stable level following a change in the control voltage from 1000 V to 500 V in darkness *5: Selectable ECR mode or LCR mode (refer to command list) *6: Controllable by RS-232C command *7: No condensation *8: Main body: Approx. 180 g 64 Unit V V mA mm nm s-1 V ms s s — — — °C °C g Photon Counting Head with CPU+Interface Characteristic (Count sensitivity) Block Diagram TPHOB0056EB 106 PMT COMPARATOR 1/4 PRESCALER AMP COUNT SENSITIVITY (s-1·pW-1) H9319-01/-11 LLD HV POWER SUPPLY / VOLTAGE DIVIDER CIRCUIT H9319-02/-12 105 12 bit DAC 4 bit counter 140 MHz 8 bit microcontroller 20 MHz 4 bit counter 140 MHz RS-232C 104 IN OUT Rx Tx USER I/O INTERFACE +5 V GND TPMOC0187EB 103 200 300 400 500 600 700 800 900 WAVELENGTH (nm) Command List Action Set the Integration Time Set the Sequence of Readings Set the PMT Input Voltage Set the Output of the User Line Command *9 P# CR R # CR V# # CR D CR O# CR SCR C CR Start the Reading Sequence ECR L CR Explanation Set the number of 10 msec intervals to sum. Same as integration time for 1 reading. Set sequence of readings, where each reading uses the integration time set with the P command. Change the high voltage applied to the tube. Re-set the default high voltage to the tube Set the output of the user digital output line. 0: Low level output 1: High level output Start the reading sequence Start a continuous reading process. Will continue indefinitely until a STOP character (CR) is sent. Start a reading sequence for each positive-edge TTL transition applied to the purple stripe user line. Start a reading sequence for each positive-level TTL transition applied to the purple stripe user line. Argument Response *10 1 to 100 VA, BC, BA 1 to 255 VA, BC, BA 300 to 1200 — VA, BC, BA VA, BC 0 or 1 VA, BC, BA — 4 byte/reading — 4 byte/reading — 4 byte/reading — 4 byte/reading *9: The Response acknowledgment is returned having two bytes. *10: VA: valid command, BC: bad command, BA: bad argument Dimensional Outlines (Unit: mm) 1800 120 600 35 0.5 10 YELLOW : VCC (+5 V) BLACK : GND ORANGE/WHITE STRIPE : USER LINE (TTL OUTPUT) VIOLET/WHITE STRIPE : EXTERNAL TRIGGER (TTL INPUT) EFFECTIVE AREA FRONT VIEW 22 MIN. D-sub 9 PIN CONNECTOR SIDE VIEW TPMOA0032EA 65