For Gamma and Neutron Radiation
The NRF31 Electronic Personal Dosimeter monitors / measures personal dose equivalent of neutrons and gamma: dose and dose rate. The NRF31 features digital display and audible alarm. The user sets alarm threshholds for dose and dose rate by means of the NRZ software and reader. To operate this dosimeter, purchase of the NRZ IR Reader and Software is recommended. The same NRZ reader can be used on several dosimeters.
NRF31 EPD Order Online
For data-logging and changing settings, the NRZ Reader and Software is required. Order Online
NRF31 Specifications:
Radiation Measured: Gamma (X) rays and Neutron
Detector: Silicon semiconductor
Measurement Range: Gamma(X) rays : ≤ ± 10%
(0.1mSv to 9.999Sv (10mrem to 999.9rem),137Cs)
Neutron : ≤ ± 15%
(0.5mSv to 9.999Sv (50mrem to 999.9rem), 252Cf)
Accuracy: Gamma(X) rays : ≤ ± 10%
(0.1mSv to 9.999Sv (10mrem to 999.9rem),137Cs)
Neutron : ≤ ± 15%
(0.5mSv to 9.999Sv (50mrem to 999.9rem), 252Cf)
Energy Range: Gamma(X) rays : 30keV to 6MeV
Neutron : 0.025eV to 15MeV
Energy Response: Gamma(X) rays : ≤ ± 20% (50keV to 6MeV, 137Cs reference)
Neutron : ≤ ± 50% (250keV to 4.5MeV, 241Am-Be reference)
Angular Response: Gamma(X) rays :
≤ ± 20% (Up to ±60degree vertical and horizontal, 137Cs)
≤ ± 50% (Up to ±60degree vertical and horizontal, 241Am)
≤ ± 30% (All around horizontal, 137Cs, free air)
Neutron :
≤± 30% (Up to ±75degree vertical and horizontal, 241Am-Be)
Dose Rate Linearity: Gamma(X) rays : ≤ ±10%
(0.1mSv/h to 9.999Sv/h (10mrem/h to 999.9rem/h), 137Cs)
Neutron : ≤ ± 20%
(0.5mSv/h to 9.999Sv/h (50mrem/h to 999.9rem/h), 252Cf)
Display: LCD (with backlight)
Alarm Volume: 85 to 100dB (at 30cm)
Communication Method: Infrared communication
Operating Temperature: -20℃ to 50℃ (-4°F to 122°F)
Operating Humidity: 35% to 95%RH (Non-condensing)
Power Supply: Primary Battery (CR123A) x 1
Battery Life: 2880hours (without alarm/ communication)
Dimensions: 60(W) x 33(D) x 78(H)mm
(2.4(W) x 1.3(D) x 3.1(H) in)
Weight: 120g approx. (0.26lb approx.)
