NSN3中子儀Portable Neutron Survey Meter

The Fuji model NSN3中子儀Portable Neutron Survey Meter is very lightweight ａnd small without polyethylene moderator.The energy response is improved using the spectrum weighting function.

The NSN3中子儀Portable Neutron Survey Meter measures ambient dose equivalent ａnd ambient dose equivalent rate of neutrons.

FEATURES:

Lightweight ａnd portable（Weighs only 2kg）

Ideal for a wide range of measurements

AC power, primary ａnd secondary cells are applicable

Equipped with USB drive function ａnd can display measurement values on a PC

Radiation detected : Neutron rays

Measurement quantity : 1cm dose equivalent

Detector : Gas detector

Sensitivity : 0.3 s-1 / μSv/h ±20 %, ref. 252Cf

Measurement Range dose rate : 0.1 μSv/h to 99.99 mSv/h

dose : 0.01 μSv to 99.99 mSv

Accuracy dose rate : ≤ ±15 % at 10 μSv/h

dose : ≤ ±25 % at 0.05 μSv

Energy range : 0.025eV to 15 MeV

Energy dependency : ICRP74 compliance

Angular dependence : ≤ ±25 % （±90°from threshold）

Dose rate characteristic : ≤ ±（20 +U）% （U : Uncertainty of reference source）

Gamma ray sensitivity : No response until 1 mSv/h

Battery life : Displays continuously 17 hours or more

Displays intermittently 31 hours or more （displays 1min, during 5min.）

Response time : Less than 4sec: over 1mSv/h

Display : Organic EL triple-digit display （Dose rate, Integrating dose）

Power supply : 3-way / Primary battery or secondary battery （AA type, 6 cells）

AC adaptor（IN: 100 to 240V AC） （option）

Operating temperature : -10 to +45 °C / +14 to +113°F

Operating humidity : 35 to 90 % （non-condensing）

Size : Φ 164 （without the probe ） × 289.5 mm / Φ 6.46×11.4 in.

Mass : 2 kg / 4.4 lb approx. （including batteries）

Interface : USB

Compliance code : IEC61005（2003）, JIS Z4341（ 2006）

Mass: 2kg