เครื่องมือวัดรังสี (Survey Meter)

Body                      
MULTIPLIERS: X0.1, X1, X10,X100
RANGE: 0-200 mR/hr, and 0-660,000 counts/minute (cpm)
LINEARITY: Reading within 10% of true value with detector connected
AUDIO: Built in unimorph speaker with ON/OFF switch (greater than 60 dB at 2 feet)
HIGH VOLTAGE: Adjustable from 400 - 1500 volts
THRESHOLD: Fixed at 40 mV ± 10 mV
RESPONSE: Toggle switch for FAST (4 seconds) or SLOW (22 seconds) from 10% to 90% of final reading 
POWER: 2 each “D” cell batteries (housed in externally accessible sealed compartment)
BATTERY LIFE: Typically greater than 2000 hours with alkaline batteries
TEMPERATURE RANGE: -4°F to 122°F (-20°C to 50°C)
SIZE: 6.5” H x 3.5” W x 8.5” L (16.5 x 8.9 x 21.6 cm)
WEIGHT: 3.5 lbs. (1.6 kg) including batteries

PANCAKE DETECTOR
WINDOW: 1.7 ± 0.3 mg/cm2 mica
WINDOW AREA: Active - 15 cm2;  Open - 12 cm2
EFFICIENCY(2pi): Typically 5%-14C; 22%-90Sr/90Y; 19%-99Tc; 32%-32P; 15%-239Pu
SENSITIVITY: Typically 3300 cpm/mR/hr (137Cs gamma)
ENERGY RESPONSE: Energy dependent
DEAD TIME: Typically 80 ?s