R1878

PHOTOMULTIPLIER TUBE R1878 For Photon Counting Applications Excellent Transit Time Spread, Low After Pulse 19mm (3/4 Inch) Diameter, Multialkali Photocathode, 10-Stage, Head-on Type GENERAL Parameter Spectral Response Wavelength of Maximum Response Photocathode Material Minimum Effective Area Window Material Dynode Structure Number of Stages Base Suitable Socket Description/Value 300 to 850 420 Multialkali 4 Borosilicate glass Linear focused 10 12-pin glass base E678-12D (supplied) Unit nm nm — mm dia. — — — — — MAXIMUM RATINGS (Absolute Maximum Values) Parameter Supply Voltage Average Anode Current Ambient Temperature Between Anode and Cathode Between Anode and Last Dynode Value 1500 250 0.1 -80 to +50 Unit Vdc Vdc mA °C CHARACTERISTICS (at 25°C) Cathode Sensitivity Anode Sensitivity Gain Anode Dark Counts Time Response Parameter Luminous (2856K) Radiant at 420nm Red/White Ratio (with R-68 filter) Luminous (2856K) Radiant at 420nm Anode Pulse Rise ...