NRF31 Gamma Neutron Dose Rate Dosimeter - For Sale

Personal Electronic, Digital Dosimeter

NRF31 Dosimeter for Gamma and Neutron Dose by Fuji ElectronicsNRF31 Neutron, Gamma dosimeter meter face

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.


NRZ IR Reader and Software

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.)

NRF30 Dosimeter (Order Online)

For data-logging and changing settings, the NRZ Reader and Software is required (Order Online)

Nuclear Instrumentation

Dosimetry Shielding Sources Specials

Hepa Vacuums

Chemical Detection

Marinelli Beakers

Fume Hoods


Emergency Response

Nuclear Medicine

Radiation Therapy Search Home

Direct Scientific  /  tel (310) 589 0601 /   Email

contact us: en español, auf Deutsch
Open 8:00 AM - 5:00 PM Pacific Standard Time
Follow us on twitter and youtube.
visit our youtube channel
follow us on twitter
Check out our instrument demos.