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PHOTOMULTIPLIER TUBE
R821
For Astro-physics and Other Ultraviolet Radiation Detection Solar Blind Response (160nm to 320nm), Cs-Te Photocathode 19mm (3/4 Inch) Diameter, 10-stage, Head-On
GENERAL
Parameter Spectral Response Wavelength of Maximum Response Material Photocathode Minimum Effective Area Window Material Structure Dynode Number of Stages Base Suitable Socket Description/Value 160 to 320 240 Cs-Te 15 Fused silica Linear focused 10 12-pin glass base E678-12L (supplied) Unit nm nm — mm dia. — — — — —
MAXIMUM RATINGS (Absolute Maximum Values)
Supply Voltage Average Anode Current Ambient Temperature Parameter Between Anode and Cathode Between Anode and Last Dynode Value 1250 250 0.01 -80 to +50 Unit Vdc Vdc mA °C
CHARACTERISTICS (at 25°C)
Parameter Min. Typ.
R821 Datasheet
