Portable γ- ray Spectrometer

Application Fields
* Exploration of uranium, thorium, potassium, oil, coal, gold and many other minerals
* Radioactive geological mapping
* Radiation environmental monitoring
* Radioactivity detection of building materials

The instrument meets the requirements of EJ/T 584-2014 Portable gamma-ray radiometer and four channels gammaray spectrometer used in the exploration.

Instrument Characteristics

* Low power consumption, digitization, intelligent, portable, GPS satellite positioning, easy operating.
* Automatic spectrum stabilization system can amend spectrum drift caused by temperature and such various factors, and choose to turn off it when measuring.
* With function of searching self-stabilization peak automatically, as well as peak display.
* Three types of measuring modes: Fast, Timing and Continuous. Display measurement results by count rate or content, with radioactive intensity alarm. LCD display with backlight, touchable Button, chinese menu.
* Standard USB interface.
Specifications
1. Detector: (φ75 × 75) mm NaI(TI)
2. Energy Resolution: ≤ 8.5% (137Cs)
3. Measuring Range of Content
eU: (1 – 1000) ×10-6
eTh: (2 – 1000) ×10-6
K: (0.2 – 100) ×10-2
Σ: (2 – 1000) ×10-6
4. Measurement Channel Width
U: (1.66 – 1.90) MeV, Th: (2.44 – 2.77) MeV
K: (1.38 – 1.56) MeV, Σ: ( 0.5 – 3.00) MeV
5. Accuracy(MPE)
eU: ±7%, eTh: ±7%, K: ±12%
6. Repeatability: RSD ≤ 5%
7. Stability: RE ≤ 10% (8h)
8. Power
Power Consumption: ≤ 650 mW
7Ah rechargeable Li battery can continuously work
for 30h
Three AA No.5 batteries can continuously work for 8h
9. Storage Capacity: 1500 sets of measuring data
10. Operating Environment
Temperature: (-10 – +55)°C
Relative Humidity: ≤ 90% (+50°C)