C9744 HAMAMATSU | Alldatasheet
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Information furnished by HAMAMATSU is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or omissions. Specifications are subject to change without notice. No patent rights are granted to any of the circuits described herein. ©2006 Hamamatsu Photonics K.K. Subject to local technical requirements and regulations, availability of products included in this promotional material may vary. Please consult with our sales office. SPECIFICATIONS Photon counting unit is designed to convert single photoelectron pulses from a photomultiplier tube into 5 V digital signals by use of the built-in amplifier and discriminator circuits. Photon counting with a high S/N ratio can be performed by simply connecting a counter to the output of the photon counting unit. The C9744 uses a high-speed electronic circuit that allows measurement with an excellent output linearity up to 10 7 s -1. The C9744 also has a prescaler (division by 10) eliminating the need for a high-speed counter. TACCF0195 Input Impedance Discrimination Level (input conversion) Required PMT Gain Prescaler Count Linearity Pulse-pair Resolution Output Pulse Output Pulse Width Supply Voltage Connector Dimensions (W × H × D) Operating Ambient Temperature A Storage Temperature A Weight ÷10 ÷10 ÷10 Input Output Power Ω mV s ns ns mm g -0.4 to -16 3 × 10 4 × 106 1 × 107 CMOS 5 V, POSITIVE LOGIC Depends on count rate +5.0 V ± 0.2 V, 130 mA / -5.0 V ± 0.2 V, 50 mA BNC-R BNC-R DIN (6-pin) B 90 × 32 × 140 0 to +50 -15 to +60 Approx. 250 ÷1 ÷10 C9744Parameter Unit NOTE: ANo condensation BSupplied with a cable (1.5 m) attached to the mating plug. TPHOC0056EA Figure 1: Block Diagram SIGNAL INPUT PULSE AMPLIFIER COMPARATOR PULSE STRETCHER ÷1, ÷10 SELECT PRESCALER+5 V GND POWER INPUT -5 V PRESCALER MULTIPLEXER SIGNAL OUTPUT (CMOS: +5 V) PULSE SHAPER (–) (+) MONITOR (DISCRIMINATOR LEVEL) VR: DISCRIMINATOR VR SW