H7155-20

Metal package PMT Photon Counting Head H7155 Series The H7155 series are compact photon counting head devices consisting of a metal package photomultiplier tube along with a high-speed photon counting circuit and a high-voltage power supply circuit. The high voltage supply for photomultiplier tube and the discriminator level are preset to optimum values, allowing photon counting measurement by just connecting a +5 V supply. The H7155-20 has an internal prescaler of division by 4. This prescaler improves the count linearity 4-fold compared to the H7155. Product Variations Type No. H7155 H7155-20 Spectral Response 300 nm to 650 nm Prescaler No Yes Specifications Parameter Input Voltage Max. Input Voltage Max. Input Current Effective Area Peak Sensitivity Wavelength 300 nm 400 nm Count Sensitivity 500 nm 600 nm Count Linearity *1 Typ. Dark Count *3 Max. Pulse-pair Resolution Output Pulse Width Typ. Output Pulse Height *4 Min. Recommended Load Resistance Signal Output Logic Operating Ambient Temperature Storage Temperature Weight H7155 +4.5 to +5.5 +6 50 8 420 1.2 × 105 2.7 × 105 2.2 × 105 2.1 × 104 1.5 × 106 100 500 70 30 3.6 3.0 50 Positive logic +5 to +40 -20 to +50 75 H7155-20 70 Unit V V mA mm nm 1.2 × 105 *2 2.7 × 105 *2 2.2 × 105 *2 2.1 × 104 *2 10 × 106 *2 100 *2 500 *2 10 Depends on count rate. 2.2 2.0 s-1·pW-1 s-1 s-1 ns ns V Ω — °C °C g *1: Random pulse, at 10 % count loss *2: Output count will be decreased to 1/4 after the prescaler. *3: After 30 minute storage in darkness *4: With input voltage +5 V, Load resistance 50 Ω and Coaxial cable RG-174/U (450 mm) 38 Photon Counting Heads Characteristics (Count sensitivity, Dark count) TPHOB0040EC 106 105 TPHOB0047EA 104 COUNT SENSITIVITY (s-1·pW-1) DARK COUNT (s-1) 105 103 H7155 102 H7155 104 101 103 200 100 300 400 500 600 700 800 900 5 10 15 20 25 30 35 40 WAVELENGTH (nm) TEMPERATURE (°C) Block Diagram PMT AMP COMPARATOR + LLD. HV POWER SUPPLY VOLTAGE DIVIDER CIRCUIT POSITIVE LOGIC RL 50 Ω PULSE SHAPER OUTPUT TO PULSE COUNTER GND +5 V TPHOC0035ED POWER INPUT Dimensional Outlines (Unit: mm) 22.0 ± 0.5 14.0 ± .0.2 4 0.5 50.0 ± 0.5 30.0 ± 0.2 10 POWER INPUT CONNECTOR HIROSE HR10A-7R-4P 1: Vcc +5 V 2: GND 3: IC* 4: IC* 20 *IC: Internal Connection (Do not use) Option (Optical Fiber Adapter) (Unit: mm) E5776 (FC Type) 22.0 ± 0.5 14.0 ± 0.2 8.5 3.5 ± 0.2 18 WINDOW 40.0 ± 0.2 9.4 50.0 ± 0.5 14.0 ± .0.2 PHOTOCATHODE 5 15 4-M2 4-M2 DEPTH: 4 4-M3 DEPTH: 4 EFFECTIVE AREA ( 8 MIN.) FRONT VIEW SIDE VIEW SIGNAL OUTPUT BNC-R CONNECTOR REAR VIEW FC-R FRONT VIEW SIDE VIEW TACCA0055EA E5776-51 (SMA Type) 22.0 ± 0.5 14.0 ± 0.2 10.7 5.0 POWER CABLE (SUPPLIED) 450 ± 20 Vcc (+5 V) GND POWER INPUT CONNECTOR HIROSE HR10A-7P-4S TPHOA0017ED SHIELD 4-M2 SMA 3.0 FRONT VIEW SIDE VIEW TACCA0239EA 39