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Cari koleksi dengan cepat sesuai kebutuhan Anda.In underground particle physics experiments, the radioactive noble gas 222Rn generated from the decay chain of the uranium series could be a serious background source.We have been developing high-sensitivity radon detectors to assay radon in the Kamioka underground laboratory. In order to achieve a further low background level, we developed a new radon detector with better hermeticity. The high…