64 specifications product variations 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-volt- age power supply circuit, counter and a microprocessor. data transfer, meas- urement time and other necessary adjustments can be controlled by com- mands from the pc through the rs-232c interface. since the h9319 series performs linearity correction by the internal micro- processor, it provides excellent count linearity within a range of 1 % at 20 10 6 s -1 . +4.75 to +5.25 +6 60 22 420 20 10 6 +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 head-on pmt photon counting head h9319 series type no. h9319-01 h9319-11 h9319-02 h9319-12 300 nm to 650 nm 300 nm to 850 nm yes no yes no 1/4 1/4 1/4 1/4 spectral response sample program prescaler parameter input voltage max. input voltage max. input current effective area peak sensitivity wavelength count sensitivity count linearity * 1 dark count * 2 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 2.1 10 5 2.5 10 5 2.0 10 5 1.3 10 5 7.8 10 4 10 000 15 000 h9319-11 h9319-02 h9319-12 h9319-01 2.3 10 5 4.1 10 5 3.4 10 5 5.7 10 4 150 300 unit v v ma mm nm s -1 ?w -1 s -1 s -1 v ms s s c c g *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 ec r mode or lc r mode (refer to command list) *6: controllable by rs-232c command *7: no condensation *8: main body: approx. 180 g 300 nm 400 nm 500 nm 600 nm 700 nm ty p. max. ty p. (at +25 c) this product can't be used at vacuum environment or reduced pressure environment.
65 characteristic ( count sensitivity) block diagram dimensional outlines (unit: mm) command list tphob0056eb tpmoc0187eb tpmoa0032ea in user i/o hv power supply / voltage divider circuit out rx interface +5 v gnd tx lld amp pmt comparator 1/4 prescaler 4 bit counter 140 mhz 12 bit dac 8 bit microcontroller 20 mhz rs-232c 4 bit counter 140 mhz d-sub 9 pin connector 120 1800 600 10 0.5 35 effective area 22 min. yellow black orange/white stripe violet/white stripe : vcc (+5 v) : gnd : user line (ttl output) : external trigger (ttl input) side view front view count sensitivity (s -1 pw -1 ) wavelength (nm) 300 10 3 10 4 10 5 10 6 700 900 500 200 600 800 400 h9319-01/-11 h9319-02/-12 action argument explanation set the integration time set the sequence of readings set the pmt input voltage set the output of the user line start the reading sequence *9: the response acknowledgment is returned having two bytes. *10: va: valid command, bc: bad command, ba: bad argument 1 to 100 1 to 255 300 to 1200 0 or 1 command * 9 p#c r r#c r v##c r dc r o#c r sc r cc r ec r lc r response * 10 va, bc, ba va, bc, ba va, bc, ba va, bc va, bc, ba 4 byte/reading 4 byte/reading 4 byte/reading 4 byte/reading 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 in- definitely until a stop character (c r ) 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. photon counting head with cpu+interface
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