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Photomultiplier tube

R4220

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28mm dia., Side-on type, Low noise bialkali photocathode (Effective area : 8 x 24 mm/Spectral response : 185 to 710 nm)

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Specifications

Type Side-on type
Tube Size Dia.28 mm
Photocathode Area Shape Square
Photocathode Area Size 8 x 24 mm
Wavelength (Short) 185 nm
Wavelength (Long) 710 nm
Wavelength (Peak) 410 nm
Spectral Response Curve Code 456U
Photocathode Material Low noise bialkali
Window Material UV glass
Dynode Structure Circular-cage
Dynode Stages 9
[Max. Rating] Anode to Cathode Voltage 1250 V
[Max. Rating] Average Anode Current 0.1 mA
Anode to Cathode Supply Voltage 1000 V
[Cathode] Luminous Sensitivity Min. 80 μA/lm
[Cathode] Luminous Sensitivity Typ. 100 μA/lm
[Cathode] Blue Sensitivity Index (CS 5-58) Typ. 8.0
[Cathode] Radiant Sensitivity Typ. 70 mA/W
[Anode] Luminous Sensitivity Min. 1000 A/lm
[Anode] Luminous Sensitivity Typ. 1200 A/lm
[Anode] Radiant Sensitivity Typ. 8.4 x 105 A/W
[Anode] Gain Typ. 1.2 x 107
[Anode] Dark Current (after 30min.) Typ. 0.2 nA
[Anode] Dark Current (after 30min.) Max. 2 nA
[Time Response] Rise Time Typ. 2.2 ns
[Time Response] Transit Time Typ. 22 ns

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