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\nhttps:\/\/patentimages.storage.googleapis.com\/71\/f9\/e7\/f7d0b0481bb818\/WO2010019311A2.pdf
\n1MV~9MV\u3068\u3044\u3046\u304b\u306a\u308a\u9ad8\u30a8\u30cd\u30eb\u30ae\u30fc\u306e\u96fb\u5b50\u3092\u4f5c\u3063\u3066\u30bf\u30f3\u30b0\u30b9\u30c6\u30f3\u306a\u3069\u306e\u91cd\u5143\u7d20\u306e\u30bf\u30fc\u30b2\u30c3\u30c8\u306b\u3076\u3064\u3051\u308b\u3088\u3046\u3067\u3059\u3002\u30bf\u30f3\u30b0\u30b9\u30c6\u30f3\u30bf\u30fc\u30b2\u30c3\u30c8\u306b\u96fb\u5b50\u3092\u5f53\u3066\u308b\u65b9\u5f0f\u306f\u64ae\u5f71\u7528\u306eX\u7dda\u6e90\u3067\u3082\u4f7f\u3044\u307e\u3059\u304c\u3001\u52a0\u901f\u96fb\u5727\u304c60kV\u7a0b\u5ea6\u3067\u3059\u3002MV\u3092\u8d85\u3048\u308b\u52a0\u901f\u306f\u76f4\u6d41\u96fb\u5727\u3067\u306f\u304a\u305d\u3089\u304f\u3080\u305a\u304b\u3057\u304f\u3001\u30de\u30a4\u30af\u30ed\u6ce2\u3092\u4f7f\u3063\u305f\u7a7a\u6d1e\u5171\u632f\u5668\u3067\u52a0\u901f\u3057\u3066\u3044\u308b\u306e\u3067\u306f\u306a\u3044\u304b\u3068\u601d\u3044\u307e\u3059\u3002\u3069\u306e\u304f\u3089\u3044\u306e\u30a8\u30cd\u30eb\u30ae\u30fc\u304b\u306f\u308f\u304b\u308a\u307e\u305b\u3093\u304c\u3001\u30ed\u30dc\u30c3\u30c8\u30a2\u30fc\u30e0\u306e\u5148\u306e\u6570\u5341cm\u306b\u7d0d\u3081\u308b\u306e\u306f\u3059\u3054\u3044\u6280\u8853\u3067\u3059\u3002\u52a0\u901f\u96fb\u5727\u304c\u9ad8\u3044\u3068\u305d\u306e\u5206\u9ad8\u30a8\u30cd\u30eb\u30ae\u30fc\u306eX\u7dda\u304c\u51fa\u305b\u308b\u3053\u3068\u3001\u5f37\u5ea6\u3082\u683c\u6bb5\u306b\u5f37\u304f\u3067\u304d\u308b\u305f\u3081\u30b3\u30ea\u30e1\u30fc\u30bf\u3067\u7d5e\u3063\u3066\u5e73\u884c\u30d3\u30fc\u30e0\u306b\u3057\u3084\u3059\u3044\u3053\u3068\u306a\u3069\u30e1\u30ea\u30c3\u30c8\u306f\u8272\u3005\u3042\u308a\u307e\u3059\u3002\u30ac\u30f3\u30de\u7dda\u306e\u5b9a\u7fa9\u306f0.1MeV\u304b\u3089100MeV\u7a0b\u5ea6\u306a\u306e\u3067\u3001\u3082\u3057\u52a0\u901f\u96fb\u5727\u304c\u9ad8\u3051\u308c\u3070\u3001\u767a\u751f\u3055\u305b\u3066\u3044\u308b\u306e\u306f\u30ac\u30f3\u30de\u7dda\u3068\u8a00\u3063\u3066\u3082\u3044\u3044\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002
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\nhttps:\/\/www.pasj.jp\/web_publish\/pasj6\/papers\/tolsb03.pdf<\/p>\n
\u82f1\u8a9e\u306f\u3000https:\/\/en.wikipedia.org\/wiki\/Gamma_ray
\n“Compton scattering is an interaction in which an incident gamma photon loses enough energy to an atomic electron to cause its ejection, with the remainder of the original photon’s energy emitted as a new, lower energy gamma photon whose emission direction is different from that of the incident gamma photon, hence the term “scattering.”
\nejection \u653e\u51fa
\nemit \u653e\u51fa\u3059\u308b
\nincident \u5165\u5c04
\nemission \u653e\u51fa\u3001\u653e\u5c04
\nremainder \u30ea\u300c\u30e1\u300d\u30a4\u30f3\u30c0\u30fc\u3000\u6b8b\u308a\u306e
\nhence \u300c\u30d8\u300d\u30f3\u30b9\u3000\u305d\u308c\u3086\u3048\u3001\u3086\u3048\u306b
\nscattering \u6563\u4e71
\n“Pair production becomes possible with gamma energies exceeding 1.02 MeV, and becomes important as an absorption mechanism at energies over 5MeV. By interactions with the electric field of a nucleus, the energy of the incident photon is converted into the mass of an electron positron pair.”
\nabsorption \u5438\u53ce
\npair production \u5bfe\u751f\u6210\uff08\u96fb\u5b50\u30fb\u967d\u96fb\u5b50\u306e\uff09<\/p>\n","protected":false},"excerpt":{"rendered":"
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