R877-01

PHOTOMULTlPLlER TUBES R877, R877-01 For Scintillation Counting, 127mm(5 Inch) Diameter Bialkali Photocathode, 10-Stage, Head-On Type GENERAL Parameter Spectral Response Wavelength of Maximum Response MateriaI Photocathode MateriaI Minimum Effective Area R877 Window R877 01 Structure Dynode Number of Stages Anode to Last Dynode Direct Interelectrode Capacitances Anode to All Other Electrodes Base SuitabIe Socket Description/Value 300 to 650 420 Bialkali 111 Borosilicate glass K free Borosilicate glass Box and Grid 10 6 7 14 pin base JEDEC No. B14 38 E678 14A(option) Unit nm nm mm dia. pF pF MAXIMUM RATINGS (Absolute Maximum Values) Supply Voltage Avarage Anode Current Ambient Temperature Parameter Between Anode and Cathode Between Anode and Last Dynode Value 1500 300 0.1 -30 to +50 Unit Vdc Vdc mA °C CHARACTERISTlCS (at 25°C ) Cathode Sensitivity Anode Sensitivity Parameter Luminous (2856K) Radiant at 420nm Blue (CS 5 58 filter) Luminous (2856K) Radiant at 420nm Min. 60 Typ. 80 80 10 40 4 104 5.0 105 10 10 90 Max. Unit A/lm mA/W A/lm b A/W A/W nA ns ns 20 Gain Anode Dark Current (after 30min. storage in darkness) Anode Pulse Rise Time Time Response Electron Transit Time 50 NOTE: Anode characteristics are measured with the voItage distribution ratio shown below. VOLTAGE DlSTRlBUTlON RATlO AND SUPPLY VOLTAGE K G Dy1 Dy2 Dy3 Dy4 Dy5 Electrodes Ratio 1 1 1 1 1 1 SuppIy Voltage : 1250Vdc, K : Cathode, Dy : Dynode, Dy6 Dy7 Dy8 Dy9 Dy10 1 1 1 1 1 1 P : Anode, G:Grid P Subje...