The H12386 series is a photon counting head device 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 discrimination level are preset to optimum values, allowing photon counting measurement by just connecting a +5 V supply.
The H12386 series has also over light detection function to output a signal at the state that an output count falls by excessive incident light. By this signal, measurement data can be judged that it is normal or not.
Specifications
Photocathode Area Shape - Round
Photocathode Area Size - Dia.8 mm
Wavelength (Short) - 185 nm
Wavelength (Long) - 700 nm
Wavelength (Peak) - 400 nm
Dimension (W x H x D) - 30.0 mm x 22.0 mm x 54.0 mm
Input Voltage - +4.75 V to +5.25 V
Max. Input Voltage - 6 V
Max. Input Current - 40 mA
Count Senstitivity at 200 nm Typ. - 9.7 x 104 s-1・pW-1
Count Senstitivity at 300 nm Typ. - 3.7 x 105 s-1・pW-1
Count Senstitivity at 400 nm Typ. - 4.9 x 105 s-1・pW-1
Count Senstitivity at 500 nm Typ. - 3.7 x 105 s-1・pW-1
Count Senstitivity at 600 nm Typ. - 1.1 x 105 s-1・pW-1
Count Senstitivity at 700 nm Typ. - 7.7 x 103 s-1・pW-1
Count Linearity - 5.0 x 106 s-1
Dark Count Typ. - 50 s-1
Dark Count Max. - 100 s-1
Pulse-pair Resolution - 20 ns
Output Pulse Width - 10 ns
Output Pulse Height Min. - 2 V
Output Pulse Height Typ. - 2.2 V
Recommended Load Resistance - 50 Ω
Signal Output Logic - Positive logic
Operating Ambient Temperature - +5 ℃ to +40 ℃
Storage Temperature - -20 ℃ to +50 ℃
Weight - 61 g