Photomultiplier tube assembly


31.0mm diameter PMT assembly, Built-in PMT:R4998, For high energy physics experiments


Assembly Size Dia.31 mm
PMT Tube Size 25 mm
Built-in PMT Type No. R4998
Photocathode Area Shape Round
Photocathode Area Size Dia.20 mm
Wavelength (Short) 300 nm
Wavelength (Long) 650 nm
Wavelength (Peak) 420 nm
Spectral Response Curve Code 400K
Photocathode Material Bialkali
Window Material Borosilicate glass
Dynode Structure Linear-focused
Dynode Stages 10
[Max. Rating] Anode to Cathode Voltage -2500 V
[Max. Rating] Average Anode Current 0.36 mA
Anode to Cathode Supply Voltage -2250 V
[Cathode] Luminous Sensitivity Typ. 80 μA/lm
[Cathode] Blue Sensitivity Index (CS 5-58) Typ. 9.5
[Anode] Luminous Sensitivity Typ. 400 A/lm
[Anode] Gain Typ. 5.7 x 106
[Anode] Dark Current (after 30min.) Typ. 100 nA
[Anode] Dark Current (after 30min.) Max. 200 nA
[Time Response] Rise Time Typ. 0.7 ns
[Time Response] Transit Time Typ. 10 ns
[Time Response] Transit Time Spread Typ. 0.16 ns
[Anode] Pulse Linearity (2% deviation) 40 mA
[Anode] Pulse Linearity (5% deviation) 70 mA

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