7129

Alpha – beta – gamma

General Specifications

MAXIMUM LENGTH (INCH/MM) 2.0/50.8
MAXIMUM DIAMETER (INCH/MM) 0.75/19.1
GAS FILLING Ne +Halogen
EFFECTIVE LENGTH (INCH/MM) 1.5/38.1
CATHODE MATERIAL (INTERNAL/EXTERNAL) 446 Stainless Steel
EFFECTIVE DIAMETER (INCH/MM) .36/9.1
CONNECTOR Pin
OPERATING TEMPERATURE RANGE °C -10 to +75

Window Specifications

MATERIAL Mica
EFFECTIVE DIAMETER (INCH/MM) 0.36/9.1
AREAL DENSITY (MG/CM²) 1.5/2.0

Electrical Specifications

RECOMMENDED OPERATING VOLTAGE (VOLTS) 500
RECOMMENDED ANODE RESISTOR (MEG OHM) 4.7
OPERATING VOLTAGE RANGE (VOLTS) 450 - 650
MAXIMUM PLATEAU SLOPE (%/100 VOLTS) 6
MINIMUM DEAD TIME (MICRO SEC) 90
GAMMA SENSITIVITY Cs-137 (CPS/mR/HR) 18
TUBE CAPACITANCE (PF) 3
MAXIMUM BACKGROUND SHIELDED 50MM PB + 3MM AL (CPM) 10
MAXIMUM STARTING VOLTAGE (VOLTS) 350

Filter Specifications

MATERIAL Sn
THICKNESS (INCH/MM) 0.08/2.0

Wall Specifications

THICKNESS (INCH/MM) 0.012/0.30
AREAL DENSITY (MG/CM²) 216