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The project is to develop a digital coincidence measurement device for radioactive gas activity,applying NaI(Tl)crystal as theγ-ray detector,and internal gas proportional counter as theβ-ray detector.The radioactive gas is filled into the proportional counter and the counter is placed in the NaI(Tl)crystal.
The project is to develop a digital coincidence measurement device for radioactive gas activity, applying NaI (Tl) crystal as the γ-ray detector, and internal gas proportional counter as the β-ray detector. Radioactive gas is filled into the proportional counter and the counter is placed in the NaI (Tl) crystal.