Metal Package PMT with Cooler Photosensor Modules H7422 Series The H7422 series are photosensor modules with an internal high-voltage power supply circuit and a cooler installed to the metal package photomultiplier tube. Efficient cooling was achieved by placing the cooler near the photomultiplier tube to reduce thermal noise emitted from the photocathode and a high S/N ratio can be obtained even at extremely low light levels. The H7422-40 has high sensitivity in the 300 nm to 720 nm wavelengths. The H7422-50 is sensitive along a wide spectral range from 380 nm to 890 nm. The photomultiplier tube is maintained at a constant temperature by monitoring the output from a thermistor installed near the photomultiplier and then regulating the current to the thermoelectric cooler. Heatsink with fan (A7423) sold separately Product Variations Type No. Spectral Response Max. Output Signal Current H7422-40 300 nm to 720 nm H7422P-40 2 µA H7422-50 380 nm to 890 nm H7422P-50 Features GaAsP photocathode, QE 40 % at peak wavelength, high gain (P type) GaAs photocathode, QE 12 % at peak wavelength, high gain (P type) For photon counting For photon counting This product can't be used at vacuum environment or reduced pressure environment. Specifications Parameter P Type Standard Type Anode Cathode Input Voltage Max. Input Voltage for Main Unit Max. Input Current for Main Unit Max. Input Voltage for Thermoelectric Cooler Max. Input Current for Thermoelectric Cooler Max. Output Signal Current Max. Control Voltage Recommended Control Voltage Adjustment Range Effective Area Sensitivity Adjustment Range Peak Sensitivity Wavelength 420 nm Radiant Sensitivity Typ. 550 nm 800 nm Radiant Sensitivity *1 Typ. 550 nm Typ. Dark Current *1 *2 Max. Radiant Sensitivity *3 Typ. 550 nm Typ. Dark Count *2 *3 Max. Typ. Rise Time *1 1 4 Ripple Noise * * (peak to peak) Max. Typ. Settling Time *5 Operating Ambient Temperature *6 Storage Temperature *6 Weight (at +25 °C) H7422-40 H7422-50 +11.5 to +15.5 +18 62 2.6 2.2 2 +0.9 (Input impedance 100 kΩ) +0.5 to +0.8 5 1: 50 800 15 50 90 2.5 × 104 0.5 1.3 5.0 × 104 125 375 580 108 176 — 8.8 × 104 0.4 1.0 1.8 × 105 100 300 1.00 0.6 0.2 +5 to +35 -20 to +50 Approx. 400 *1: Control voltage = +0.8 V PMT setting temperature 0 °C, used with C8137-02 and A7423 *2: After 30 minutes storage in darkness *3: Plateau voltage = control voltage, PMT setting temperature 0 °C, used with C8137-02 and A7423 *4: Cable RG-174/U, Cable length 450 mm, Load resistance = 1 MΩ, Load capacitance = 22 pF *5: The time required for the output to reach a stable level following a change in the control voltage from +1.0 V to +0.5 V. *6: No condensation 18 Unit V V mA V A µA V V mm — nm mA/W A/W nA A/W s-1 ns mV s °C °C g Current Output Type Photosensor Modules Cooling Specifications H7422 Series Thermoelectric cooling 35 Approx. 5 Parameter Cooling Method Max. Cooling Temperature (∆T) *7 Cooling Time *7 Unit — °C min *7: Input current to thermoelectric cooler=2 A Characteristics (Cathode radiant sensitivity, Gain) TPMOB0135EC 107 1000 TPMOB0136EC H7422P-40/-50 106 100 H7422-40/-50 GAIN 10 105 H7422-50 104 1 600 800 103 0.5 1000 0.6 WAVELENGTH (nm) 0.7 POWER INPUT TAJIMI PRC03-23A10-7M THREADED HOLE for A7423 (8-M3 DEPTH: 2) ACROSS SECTION PHOTOCATHODE 15.0 ± 0.2 26.0 ± 0.2 22.2 ± 0.2 WINDOW SIGNAL OUTPUT (CURRENT OUTPUT) O-RING GROOVE (S-28 O-RING INCLUDED) THREADED HOLE for A7412 (4-M2 DEPTH: 2) In order to protect the PMT module from being damaged by excessive light, the H7422-40/50 has a protective function circuit. The circuit automatically turns off high voltage if the output current exceeds the preset current limit (approx. 10 µA). This protection circuit works whenever the preset current limit is exceeded, even for a short moment. An example of this function could be in applications such as laser scanning microscopes where the output current may momentarily exceed the preset current limit. This will trigger the protection circuit and interrupt measurement. In such applications, if the average output current is lower than the PMT module maximum rating (2 µA), we can change the current limit in the protection circuit up to approximately 50 µA. This means that PMT module operation continues without turning off high voltage even if a momentary high output occurs. Users can choose this option when ordering. 9.5 ± 0.1 44.0 ± 0.2 56.0 ± 0.3 FRONT VIEW 53.6 ± 0.2 TOP VIEW PHOTOCATHODE 5 A 8-M3C 20.0 ± 0.2 20.0 ± 0.2 36.0 ± 0.3 TPMOC0144EB 25.4 ± 0.2 PMT 4.0 ± 0.1 SIGNAL OUTPUT BNC-R 6.4 ± 0.2 7.4 ± 0.2 A 14.8 ± 0.2 16.3 ± 0.2 MOUNTING THREADED HOLE (4-M3B) 9.5 ± 0.1 CONTROL VOLTAGE INPUT (+0.5 V to +0.8 V) 18.5 ± 0.2 PMT HV POWER SUPPLY / VOLTAGE DIVIDER CIRCUIT GND 1.0 Dimensional Outlines (Unit: mm) POWER INPUT for THERMOELECTRIC THERMISTOR COOLER Vcc 0.9 CONTROL VOLTAGE (V) Block Diagram THERMOELECTRIC COOLER 0.8 7.2 400 10.2 0.1 200 M25.4 P=1/32" C-MOUNT CATHODE RADIANT SENSITIVITY (mA/W) H7422-40 M25.4 P = 1/32" C-MOUNT BCROSS SECTION 6.5 ± 0.2 M3 DEPTH: 4.0 Max. CCROSS SECTION 2.0 ± 0.2 M3 DEPTH: 4.0 Max. GUIDE MARK 16.3 ± 0.2 19.0 ± 0.2 25.0 ± 0.2 F 104 ± 1 SIDE VIEW A E G D B C TAJIMI PRC03-23A10-7M A: THERMISTOR 1 B: THERMISTOR 2 C: THERMOELECTRIC COOLER + D: THERMOELECTRIC COOLER – E: LOW VOLTAGE INPUT(+15 V) F: CONTROL VOLTAGE INPUT (+0.5 V to +0.8 V) G: GND TPMOA0024ED 19 Metal Package PMT with Cooler H7422 Series Option 1 SOLD SEPARATELY POWER SUPPLY UNIT with TEMPERATURE CONTROL M9012 Vcont CHK2 Vcont-ADJ Don't use CHK3 CHK4 CN04 6 CN5 2345 SW2 ON SW1 POWER SUPPLY UNIT with TEMPERATURE CONTROL C8137-02 5 C-MOUNT LENS CN03 6 DIRECT SAMPLE INPUT 12 V 1 CABLES (Supplied with M9012 or C8137-02) GND 2 CHK1 OPTICAL FIBER HEATSINK with FAN A7423 CN01 4 OPTICAL FIBER ADAPTER A7412 C-MOUNT ADAPTER A7413 PHOTOSENSOR MODULE H7422 SERIES 3 SIGNAL CABLE E1168-05 POWER INPUT AC 100 V to AC 240 V ON ON SIGNAL OUTPUT ● Heatsink with Fan A7423 ● Signal Cable E1168-05 The temperature of the H7422 outer case rises due to the thermoelectric cooler housed in the case. The A7423 heatsink efficiently radiates away this heat to prevent a temperature rise in the H7422. The A7423 can be easily installed onto the H7422 with four M3 screws. Apply a heat conductive grease onto the joint surface shared by the H7422 and A7423. This signal cable is terminated with a BNC connector for easily connecting the H7422 to external equipment. Parameter Input Voltage During Lock Input Current During Operation Operating Voltage Weight Value 12 140 90 10.2 to 13.8 120 Unit V mA mA V g ● Power Supply Unit with Temperature Control M9012 The M9012 is an on-board type power supply unit. By just connecting to 12 V supply, the M9012 provides power necessary to operate the H7422 series. The M9012 also controls the thermoelectric cooler in the H7422 series so that the output and noise can be maintained at constant levels even when the ambient temperature changes. The thermoelectric cooler and PMT operation can be controlled from an external device by connecting it to the I/O connector on the M9012. Parameter Max. Cooling Temperature (∆T) Input Voltage Max. Input Current Max. Power Consumption Main Circuit Output Voltage Max. Output Current for Thermoelectric Cooler Output Voltage for Fan Max. Control Output Voltage Max. Control Input Voltage Thermoelectric Cooler Control PMT Signal Input Voltage Fan Error Signal Thermoelectric Cooler Output Voltage PMT PMT LED Output Error Setting Cooling Temperature Weight (excluding cables) 20 TPMOC0145EC Description / Value 35 12 1.2 15.8 12 2.2 12 1.26 0.9 Non-insulated TTL level input Non-insulated TTL level input Non-insulated TTL level input Non-insulated TTL level output Non-insulated TTL level output 5 5 0 120 Unit °C V A V·A V A V V V — — V °C g ● Optical Fiber Adapter (FC Type) A7412 The A7412 is an FC type optical fiber connector that attaches to the light input window of the H7422. The A7412 can easily be secured in place with four M2 screws. ● C-mount Adapter A7413 The A7413 mount adapter is used when a C-mount lens protruding 4 mm or more from the flange-back must be installed onto the H7422. ● Power Supply Unit with Temperature Control C8137-02 The C8137-02 is a power supply unit with a temperature control function. Just connecting to an AC source of 100 V to 240 V generates the output voltages for the thermoelectric cooler and the A7423 fan, needed for operating the H7422. The photomultiplier tube temperature can be maintained to 0 °C by monitoring the thermistor and regulating the output current for the thermoelectric cooler. Control voltage can be varied by a knob on the front panel. Parameter Max. Cooling Temperature (∆T) Setting Cooling Temperature (preset at factory) AC Input Voltage Input Voltage Frequency Power Consumption Main Circuit Output Voltage Max. Current for Thermoelectric Cooler Output Voltage for Fan Control Voltage Adjustment Range Weight Value 35 Unit °C 0 °C 100 to 240 50 / 60 30 +15 2.2 12 0 to +0.9 1.1 V Hz V·A V A V V kg Current Output Type Photosensor Modules H7422 Series Options (Unit: mm) 1 Heatsink with Fan A7423 4 Optical Fiber Adapter (FC Type) A7412 LEAD LENGTH 50 ± 10 4- 2.2 4 TAPERED DEPTH 1.5 16.5 ± 0.3 22.2 ± 0.2 52.0 ± 0.5 2.5 M8 P=0.75 3.0 9.5 TOP VIEW 5.5 3 4-M2 L=3 15 LIGHT SHIELD SHEET (THICKNESS: 0.5) 9 FRONT VIEW SIDE VIEW TACCA0190EB 8 30 SIDE VIEW TACCA0188ED 22 JST XMR-02V 92.0 ± 0.5 M25.4 P=1/32" C-MOUNT 53.6 ± 0.3 5 C-mount Adapter A7413 M25.4 P=1/32" C-MOUNT 19.2 ± 0.3 40 ± 1 24.5 ± 0.5 4-M3 (SUPPLIED) 4 14 2 Power Supply Unit with Temperature Control M9012 4-M2 15.0 ± 0.1 70.0 ± 0.1 TACCA0191EA 28.0 ± 0.2 2345 50.0 ± 0.2 CN03 SW2 1 POWER SWITCH 13.8 ± 0.2 SW1 ON CN01 6 40.0 ± 0.1 6 Power Supply Unit with Temperature Control C8137-02 PHOTOSENSOR SWITCH CONTROL VOLTAGE ADJUSTABLE DIAL ON CN04 CN5 CHK1 CHK2 GND Vcont CHK3 CHK4 ON Don't use Vcont-ADJ 5.0 ± 0.1 17.5 ± 0.2 CONTROL VOLTAGE DISPLAY 16.0 ± 0.5 100.0 ± 0.3 FRONT VIEW 8 1500 ± 50 42 46.0 ± 0.5 FAN CABLE MODULE CABLE 212 ± 1 1500 ± 50 12.5 SIDE VIEW MODULE OUTPUT POWER CABLE AC INPUT 1000 ± 50 EXTERNAL I/O CABLE 1000 ± 50 FAN OUTPUT FUSE REAR VIEW EXTERNAL I/O HOUSING TACCA0251EA POWER CABLE +50 1500 -0 FAN CABLE +50 3 Signal Cable E1168-05 1500 -0 AC CABLE BNC-P 1500 +50 -0 BNC-P 1800 to 2000 TACCA0148EA TACCA0238EB 21