ASP-2E/NRD Portable Neutron REM Survey Meter

DETECTOR
Detector Type BF3 tube in a 22.9 cm (9”), cadmium loaded polyethylene sphere
Detector Sensitivity Approximately 45 cpm/mrem/hr (3000 counts per mrem)
Plateau Approximately 200 V with a slope of 5% per 100 V
Operating Voltage Between 1600 to 2000 V
Directional Response Within ±10%
Energy Range Thermal to approximately 10 MeV
Gamma Rejection Up to 500 R/h. Rejection is dependent on voltage selected. Factory default is 10 mR/h

SURVEY METER
Count Range 1 to 1.3 million cpm
Response Time Slow, Medium, Fast. Each time setting is programmable between 0 to 255 seconds
Audible Alarm 85 dB @ 30 cm (11.8”)
Dead Time Correction 0 to 255 μSec
Operating Modes: Ratemeter, Integration, Scaler
Controls Instrument off, check mode, 3 operating modes, speaker on/off, meter back light, multi-function soft key

COMBINED DETECTOR/METER
Size 40.6 H x 22.9 W x25.7 D cm (16” H x 9” W x 10.13” D)
Weight 7.93 Kg (17.5 lb)
Operating Temperature -20 °C to 50 °C (-40 °F to 122 °F)