R7724

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....