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Two methods measuring neutrons generated in a medical accelerator were investigated. One is the activation method using concentrated Argon gas with a fixed pressure sealed in a glass vessel. Gamma-ray...s from 41Ar was measured with Ge detector and its counting efficiency was obtained by a Monte Carlo calculation. This new method showed the sensitivity of 56 times higher than that of the irradiation with natural air. Another method is to use the neutron sensitive bubble damage polymer detector. The measurement of neutrons generated in 10 MV Linear Accelerator was tried by these methods.show more
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KJ00000075126-00002