Head-on PMT Photon Counting Head H7360 Series The H7360 series is a wide sensitive area photon counting head device containing a 25-mm (1") diameter head-on photomultiplier tube, a high-voltage power supply circuit and a photon counting circuit. Since those circuits are designed for wide band, the H7360 series can operate at a high count rate. The high voltage supply for photomultiplier tube and the discriminator level are preset to optimum values so that photon counting can be performed just by connecting a +5 V supply and a pulse counter. The H7360-01 is of low noise, the H7360-02 has enhanced detection efficiency in the visible range, and the H7360-03 covers sensitivity from the visible to near infrared. A mount flange (E6264) is provided as an option for easy installation to measurement equipment. Product Variations Type No. H7360-01 H7360-02 H7360-03 Spectral Response 300 nm to 650 nm 300 nm to 850 nm Features Low noise High detection efficiency For visible to near IR range 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. Pulse-pair Resolution Output Pulse Width Output Pulse Height *3 Typ. Recommended Load Resistance Signal Output Logic Operating Ambient Temperature *4 Storage Temperature *4 Main Body Weight Mount Flange *1: Random pulse, at 10 % count loss *2: After 30 minutes storage in darkness *3: With input voltage +5 V, Load resistance 50 Ω *4: No condensation 60 (at +25 °C) H7360-01 375 1.4 × 105 2.7 × 105 1.7 × 105 4.6 × 104 — 15 80 H7360-02 +4.75 to +5.25 +6 140 22 420 2.3 × 105 4.1 × 105 3.4 × 105 5.7 × 104 — 6.0 × 106 60 300 18 9 3 50 Positive logic +5 to +40 -20 to +50 140 25 H7360-03 420 2.1 × 105 2.5 × 105 2.0 × 105 1.3 × 105 7.8 × 104 Unit V V mA mm nm s-1·pW-1 s-1 5000 15000 s-1 ns ns V Ω — °C °C g Photon Counting Heads Characteristics (Count sensitivity, Dark count) 106 (-01, -02) 104 TPHOB0049ED (-03) 105 TPHOB0028ED H7360-02 H7360-03 105 DARK COUNT (s-1) COUNT SENSITIVITY (s-1. pW-1) H7360-03 103 H7360-01 104 104 H7360-02 102 103 101 102 H7360-01 103 200 300 400 500 600 700 800 100 900 5 10 WAVELENGTH (nm) 15 20 25 30 101 40 35 AMBIENT TEMPERATURE (°C) Block Diagram PMT AMP COMPARATOR + PULSE SHAPER OUTPUT TO PULSE COUNTER - LLD RL = 50 Ω HV POWER SUPPLY / VOLTAGE DIVIDER CIRCUIT POSITIVE LOGIC GND +5 V POWER INPUT TPHOC0024ED Dimensional Outlines (Unit: mm) MOUNT FLANGE E6264 (Sold Separately) 4- 3.3 EFFECTIVE AREA ( 22 MIN.) FRONT VIEW SIGNAL OUTPUT: AG-174/U 114 ± 1 O-RING 55 RED: LOW VOLTAGE INPUT (+5 V) BLACK: GND 47.0 ± 0.2 WINDOW M34 × P1.0 3.5 M34 × P1.0 34 ± 0.5 1000 ± 15 6 SIDE VIEW TPHOA0024EE 61