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Phototube

R12290U-55

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For UV, Peak wavelength : 220 nm, Photocathode area : 20 mm dia., Tube diameter : 63 mm

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Specifications

Features For UV
Type Biplanar Phototube
Spectral Response (Short) 180 nm
Spectral Response (Long) 350 nm
Spectral Response (Peak) 220 nm
Tube Diameter Dia.63 mm
Photocathode Area Min. Dia.29 mm
Photocathode Material Ag
Input Window Type Head-on
Window Material UV Glass
[Maximum Ratings] Anode Supply Voltage 3000 V
[Maximum Ratings] Peak Cathode Current 2 A
[Maximum Ratings] Input Light Energy Density 100 (at 248 nm) W/mm2
[Maximum Ratings] Average Cathode Current 10 μA
Luminous Sensitivity Typ. 15 µA/W (at 248 nm)
Radiant Sensitivity at Peak Typ. 0.022 mA/W
Time Response Rise Time Typ. 270 ps
Time Response Fall Time Typ. 130 ps

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