Photomultiplier tube

R3256

51mm dia., Head-on type, Multialkali photocathode (Effective area : 46 mm dia./Spectral response : 300 nm to 850 nm) Multialkali photocathode type of R2154-02

Type Head-on type
Tube Size Dia.51 mm
Photocathode Area Shape Round
Photocathode Area Size Dia.46 mm
Wavelength (Short) 300 nm
Wavelength (Long) 850 nm
Wavelength (Peak) 420 nm
Spectral Response Curve Code 500K
Photocathode Material Multialkali
Window Material Borosilicate glass
Dynode Structure Linear-focused
Dynode Stages 10
[Max. Rating] Anode to Cathode Voltage 1600 V
[Max. Rating] Average Anode Current 0.1 mA
[Cathode] Luminous Sensitivity Min. 80 μA/lm
[Cathode] Luminous Sensitivity Typ. 150 μA/lm
[Cathode] Radiant Sensitivity Typ. 64 mA/W
[Anode] Luminous Sensitivity Min. 20 A/lm
[Anode] Luminous Sensitivity Typ. 150 A/lm
[Anode] Radiant Sensitivity Typ. 6.4 x 104 A/W
[Anode] Gain Typ. 1.0 x 106
[Anode] Dark Current (after 30min.) Typ. 5 nA
[Anode] Dark Current (after 30min.) Max. 20 nA
[Time Response] Rise Time Typ. 3.4 ns
[Time Response] Transit Time Typ. 31 ns

Dimensional outline (Unit: mm)

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