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広域環境モニタリングのための航空機を用いた 放射性物質拡散状況調査

広域環境モニタリングのための航空機を用いた 放射性物質拡散状況調査

広域環境モニタリングのための航空機を用いた 放射性物質拡散状況調査

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Count rate (CPS/keV)<br />

10000<br />

1000<br />

100<br />

10<br />

1<br />

0.1<br />

Calculation<br />

JAEA-Technology 2012-036<br />

Fig. 3-15 Model of MEXT system<br />

Correction by Gaussian function<br />

Measurement<br />

Calculation condition<br />

- RSI system<br />

- 137 Cs point cource (1.61 MBq)<br />

- dis. 100cm<br />

0 0.2 0.4 0.6 0.8 1<br />

Gamma energy (MeV)<br />

Fig. 3-17 Energy response of MEXT system using<br />

EGS5<br />

Fig. 3-16 Simulated spectrum of 137 Cs point source<br />

- 15 -<br />

Fig. 3-18 Distribution of angular response of<br />

MEXT system using EGS5

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