{"id":24586,"date":"2023-08-24T17:38:45","date_gmt":"2023-08-24T08:38:45","guid":{"rendered":"https:\/\/nbsigh2.com\/?p=24586"},"modified":"2023-08-25T15:11:01","modified_gmt":"2023-08-25T06:11:01","slug":"%e3%83%88%e3%83%aa%e3%83%81%e3%82%a6%e3%83%a0%e3%81%ae%e6%94%be%e5%87%ba%e3%81%ab%e3%81%a4%e3%81%84%e3%81%a6","status":"publish","type":"post","link":"https:\/\/nbsigh2.com\/?p=24586","title":{"rendered":"\u30c8\u30ea\u30c1\u30a6\u30e0\u306e\u653e\u51fa\u306b\u3064\u3044\u3066"},"content":{"rendered":"

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\n\u5404\u56fd\u306e\u30c8\u30ea\u30c1\u30a6\u30e0\u306e\u653e\u51fa\u91cf\u306e\u30c7\u30fc\u30bf\u306f\u74b0\u5883\u7701\u306e\u30c8\u30ea\u30c1\u30a6\u30e0\u306e\u5e74\u9593\u51e6\u5206\u91cf<\/a>\u3001\u82f1\u8a9e\u7248<\/a>\u3001\u3042\u308b\u3044\u306f\u4e16\u754c\u306e\u4e3b\u8981\u306a\u539f\u767a\u306b\u304a\u3051\u308b\u30c8\u30ea\u30c1\u30a6\u30e0\u306e\u5e74\u9593\u51e6\u5206\u91cf<\/a>\u304c\u3042\u308b\u304c\u3001\u65e5\u672c\u653f\u5e9c\u304c\u307e\u3068\u3081\u305f\u30c7\u30fc\u30bf\u3060\u304b\u3089\u3001\u4ed6\u306e\u56fd\u306f\u4fe1\u7528\u3057\u306a\u3044\u306e\u304b\u3082\u3057\u308c\u306a\u3044\u3002\u3068\u3082\u304b\u304f\u3053\u306e\u74b0\u5883\u7701\u306e\u30c7\u30fc\u30bf\u306b\u3088\u308c\u3070\u3001\u4e2d\u56fd\u3084\u97d3\u56fd\u306e\u51e6\u5206\u91cf\u306b\u6bd4\u3079\u3001\u798f\u5cf6\u304c\u3053\u308c\u304b\u3089\u653e\u51fa\u3059\u308b\u91cf\u304c\u5c11\u306a\u3044\u306e\u306f\u660e\u3089\u304b\u3067\u3042\u308b\u3002<\/p>\n

\u8ad6\u6587\u304c\u3042\u3063\u3066
\nBin Feng & Wei-Hai Zhuo, Levels and behavior of environmental tritium in East Asia
\n Nuclear Science and Techniques Published: 15 July 2022 volume 33, Article number: 86 (2022)
\n https:\/\/link.springer.com\/article\/10.1007\/s41365-022-01073-3<\/a>
\n\u300cNaturally occurring tritium is produced primarily by the nuclear reactions of cosmic neutrons with nitrogen-14 in the upper atmosphere; the annual tritium production on the Earth\u2019s atmospheric surface has been estimated to be 7.2\u2009\u00d7\u200910^16 Bq [1]. However, tritium decays during generation and the equilibrium inventory of natural tritium is estimated to be approximately 1.29\u2009\u00d7\u200910^18 Bq (approximately 3.6 kg) at present [2].
\n\u5929\u7136\u306b\u5b58\u5728\u3059\u308b\u30c8\u30ea\u30c1\u30a6\u30e0\u306f\u3001\u4e3b\u306b\u5b87\u5b99\u4e2d\u6027\u5b50\u3068\u4e0a\u5c64\u5927\u6c17\u4e2d\u306e\u7a92\u7d2014\u3068\u306e\u6838\u53cd\u5fdc\u306b\u3088\u3063\u3066\u751f\u6210\u3055\u308c\u308b\u3002\u5730\u7403\u306e\u5927\u6c17\u8868\u9762\u306b\u304a\u3051\u308b\u5e74\u9593\u306e\u30c8\u30ea\u30c1\u30a6\u30e0\u751f\u6210\u91cf\u306f\u30017.2\u00d710^16 Bq\u3068\u898b\u7a4d\u3082\u3089\u308c\u3066\u3044\u308b[1]\u3002\u3057\u304b\u3057\u3001\u30c8\u30ea\u30c1\u30a6\u30e0\u306f\u751f\u6210\u4e2d\u306b\u5d29\u58ca\u3057\u3001\u5929\u7136\u30c8\u30ea\u30c1\u30a6\u30e0\u306e\u5e73\u8861\u5728\u5eab\u306f\u73fe\u5728\u3001\u7d041.29\u00d710^18 Bq\uff08\u7d043.6 kg\uff09\u3068\u898b\u7a4d\u3082\u3089\u308c\u3066\u3044\u308b[2]\u3002\u300d\u3068\u306a\u3063\u3066\u3044\u3066\u798f\u5cf6\u304c\u653e\u51fa\u3059\u308b\u306e\u304c 22×10^12 Bq\u3000\u3060\u304b\u3089\u81ea\u7136\u306b\u751f\u7523\u3055\u308c\u308b\u91cf\u306e10^-3\u306e\u30aa\u30fc\u30c0\u30fc\u3060\u304b\u3089\u5730\u7403\u5168\u4f53\u306b\u3072\u308d\u304c\u3063\u305f\u3089\u6e2c\u5b9a\u8aa4\u5dee\u306e\u7bc4\u56f2\u3060\u308d\u3046\u3002 <\/p>\n

\u540c\u3058\u8ad6\u6587\u306e\u8868\uff13\u306e\u5404\u65bd\u8a2d\u8fd1\u508d\u306e\u7a7a\u6c17\u4e2d\u306e\u30c8\u30ea\u30c1\u30a6\u30e0\u6fc3\u5ea6\uff08mBq m^-3\uff09\u3092\u307f\u308b\u3068\u3001\u305d\u306e\u4e2d\u592e\u5024\u306f
\n\u4e2d\u56fd\u3000Qinshan\u3000144 range 6.52~4363
\n\u65e5\u672c\u3000\u798f\u5cf6\u300014.8\u3000range 2.59~14.8
\n \u4eac\u5927\u300096.4\u3000range 9.03~9683.1
\n\u97d3\u56fd\u3000Wolsong\u30001788\u3000range 6.32~1788
\n\u3068\u3044\u3046\u3053\u3068\u3067\u3001\u539f\u767a\u8fd1\u508d\u306e\u7a7a\u6c17\u4e2d\u306e\u30c8\u30ea\u30c1\u30a6\u30e0\u306e\u91cf\u306f\u4e2d\u56fd\u3084\u97d3\u56fd\u306e\u307b\u3046\u304c\u65e5\u672c\u3088\u308a\u591a\u3044\u3002\u4e2d\u56fd\u3084\u97d3\u56fd\u306e\u4e00\u90e8\u304c\u9a12\u3044\u3067\u3044\u308b\u306e\u306f\u6839\u62e0\u306e\u306a\u3044\u300c\u3044\u3084\u304c\u3089\u305b\u300d\u3067\u3059\u306a\u3002<\/p>\n

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