Introduction:

The NGP-1 neutron-gamma personal dosimeter uses CLYC single crystal as the detector. Compared with the traditional neutron-gamma personal dosimeter that uses (CsI+LiI(Eu)) as the detection unit, the structure and circuit are simpler, the reliability is higher, the gamma energy resolution is higher, and the neutron detection efficiency is higher. The crystal used in NPG-1 is large in size, high in sensitivity, and high in 6Li abundance. Its sensitivity is more than 100 times that of the neutron-gamma personal dosimeter that uses semiconductors as detectors. The unique energy compensation design effectively guarantees the reliability of the measurement results.

Performance:

1.Simultaneous measurement of neutron and gamma dose rates;

2.Detector: CLYC+SiPIN detector;

3.Alarm: sound, light and vibration alarm;

4.Gamma detection sensitivity: for 137Cs, not less than 100cps (1μSv/h);

5.Neutron detection sensitivity: for Am-Be neutron source, not less than 1cps (4μSv/h);

6.Dose rate range: γ: 0.01μSv/h to 10Sv/h;

7.Neutron counting rate: 1-999/s;

8.Neutron dose rate range: 1μSv/h to 10Sv/h

9.Energy range: γ: 30keV-7MeV; Neutron: thermal neutron to 15MeV;

10.Error range: ±10%;

11.Protection level: IP65;

12.Standby time: ≮180 hours;

13.Power supply: built-in rechargeable lithium battery, equipped with charging cradle;

14.Operating environment temperature: -30oC to 50oC;

15.Weight: less than 180 grams;

16.Communication: support USB and Bluetooth communication;

17.Data reading: equipped with data reading device;

18.Ground drop test: 1.5 meters on cement floor.

Technical features:

1.A single crystal is used to measure neutrons and gamma simultaneously, which greatly simplifies the structure and circuit and enhances reliability;

2.Energy compensation design is adopted, and the data is reliable;

3.The n-γ discrimination technology is adopted, and the crosstalk between neutrons and gamma is effectively controlled;

4.High-density crystals are used, with high detection efficiency, and the dose rate change of 10nSv/h can be detected;

5.It can support networking and GIS, and realize intelligent and networked measurement of personnel dose and site radiation.

Application field:

CDC, hospital, nuclear power plant.