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Thermal neutron flux monitoring using new-type detectors |
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| Authors: | D M Gromushkin Yu V Sten’kin and I B Khatsukov |
| Institution: | (1) Department of Radiological Sciences, School of Health Sciences, Ibaraki Prefectural University, Ami, Ami-machi, Inashiki-gun Ibaraki, 300-0394, Japan;(2) Graduate School of Comprehensive Human Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba Ibaraki, 305-8575, Japan;(3) National Institute of Public Health, 2-3-6 Minami, Wako Saitama, 351-0197, Japan;(4) Department of Radiology, Chiba University Hospital, 1-8-1 Inohana, Chuo-ku, Chiba 260-8687, Japan;(5) Fujita Corporation, 2025-1, Ono, Atsugi Kanagawa, 243-0125, Japan;(6) Yokohama Rousai Hospital, 3211, Kodzukue-cho, Kohoku-ku, Yokohama Kanagawa, 222-0036, Japan |
| Abstract: | The applicability of new-type unshielded detectors based on zinc sulfide ZnS(Ag) and lithium fluoride enriched with 6Li isotope to 90% to thermal neutron measurements is demonstrated. The results of measurements of the thermal neutron counting rate and flux near the Earth’s surface are presented. The existence of the concentration gradient of thermal neutrons near the Earth’s surface at placing the counter at the various levels (from −4 to 10.5 m) in an experimental building is shown. The effect of meteoparameters on the counting rate of thermal neutrons for a long time is shown. |
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