DSHD-71A Flickering Gamma Radioactive Detector

Main Functions
DSHD-71, the predecessor of DSHD-71A flickering gamma radioactive detector, is widely used in doing geological census on radioactive minerals for nuke industry as military products in last century. After its turning to civilian product,The instrument is widely applied to gamma ray detection for units in relative line like environment, building materials, radioactive sanitation, commodity inspection, irradiation etc.

Main Advantages
1. Portable, water-proof, reliable and fit for field survey
2. High sensitivity, table head indicator and direct reading
3. Small power consumption and long battery life

Technical Parameters
1. Measurement range
Ⅰ0-12.5nC/kg.h (0~50 μR/h)
Ⅱ0－50nC/kg.h (0~200 μR/h)
Ⅲ 0－250nC/kg.h (0~1000 μR/h)
2. Each measuring distance nonlinearity: ≤8%
3. γ ray energy threshold value: ≤35kev
4. Equipment sensitivity threshold: less than 2 μR/h (0.5nC/kg.h)
5. Time constant: ≤5 seconds
6. Long term stability: no need to amend standard source in 10 days, the repetition reading relative error is ≤±10%
7. Power supply: 2 kts 1# batteries
8. Length and weight: 650mm, 1.6kg