尾部窗口贝塔伽马电离室52028说明：

GENERAL SPECIFICATIONS

MAXIMUM DIAMETER (INCH/MM) 6.0/152.4
MAXIMUM LENGTH (INCH/MM) 5.02/127.51
EFFECTIVE LENGTH (INCH/MM) 3.73/94.74
CATHODE MATERIAL Aluminum
FILL GAS Krypton
FILL PRESSURE (TORR) 988
ANODE CONNECTOR Threaded Pin
CATHODE CONNECTOR Solder Pin
GUARD CONNECTOR Solder Pin
STORAGE TEMPERATURE RANGE (°C) -20 to +75
MINIMUM SHELF LIFE (YEARS) 2
WINDOW SPECIFICATIONS
MATERIAL Aluminum
THICKNESS (INCHES/MM) 0.008/0.2
EFFECTIVE DIAMETER (INCHES/MM) 5.5/139.7
OPERATING CHARACTERISTICS
RECOMMENDED OPERATING VOLTAGE (VOLTS) 500
MAXIMUM OPERATING VOLTAGE (VOLTS) 1000
OPERATING TEMPERATURE RANGE (°C) 25 to 85
GAMMA SENSITIVITY (A/R/HR - CO60) 4.8E-10
RESISTANCE - HV ELECTRODE TO CATHODE (OHMS) >1.0E12
RESISTANCE - SIGNAL ELECTRODE TO CATHODE (OHMS) >1.0E14