PHOTOMULTIPLIER TUBE
PHOTOMULTIPLIER TUBE
R7723, R7724, R7725
For Scintillation Counting, Fast Time Response 51mm (2 Inch) Diameter, Bialkal...
Description
PHOTOMULTIPLIER TUBE
R7723, R7724, R7725
For Scintillation Counting, Fast Time Response 51mm (2 Inch) Diameter, Bialkali Photocathode, Head-on Type
SPECIFICATIONS
GENERAL
Parameter
Spectral Response
Wavelength of Maximum Response
Photocathode
MateriaI Minimum Effective Area
Window Material
Dynode
Structure Number of Stages
Base
SuitabIe Socket
Operating Ambient Temperature
Storage Temperature
Description / Value 300 to 650 420 Bialkali 46
Borosilicate glass Linear-focused
8 (R7723) / 10 (R7724) / 12 (R7725) 21-pin glass base
E678-21C (supplied) -30 to +50 -80 to +50
MAXIMUM RATINGS (Absolute Maximum Values)
Parameter Supply Between Anode and Cathode Voltage Between Anode and Last Dynode Average Anode Current
Value 2000 500 0.2
CHARACTERISTICS (at 25 °C)
Cathode Sensitivity
Parameter
Luminous (2856 K) Quantum Efficiency at 420 nm Blue Sensitivity Index (CS 5-58)
Min. 60 — —
R7723 Typ. 90 26 10.5
Max. — — —
Min. 60 — —
Anode Sensitivity Luminous (2856 K)
10 90 —
Gain
— 1.0 × 106 —
Anode Dark Current (after 30 min storage in darkness) — 3 20
Time Response
Anode Pulse Rise Time Electron Transit Time Transit Time Spread (T.T.S.)
— — —
1.7 23 1.1
— — —
Pulse
±2 % Deviation
— 80 —
Linearity
±5 % Deviation
— 100 —
30 — — — — — — —
NOTE: Anode characteristics are measured with voltage distribution ratios shown below:
R7724 Typ. 90 26 10.5 300 3.3 × 106
6 2.1 29 1.2 60 90
Max. — — — — — 40 — — — — —
Min. 60 — — 100 — — — — — — —
R7725 Typ....
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