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Report No.

Applicability of autonomous unmanned helicopter survey of air dose rate in suburban area

Yoshimura, Kazuya; Fujiwara, Kenso; Nakama, Shigeo

To investigate the applicability of autonomous unmanned helicopter (AUH) survey, the result of AUH survey in sub-urban area was compared with air dose rate measured on the ground. The AUH survey showed similar measurement error with the errors reported for plane permeable fields (within uncertainty factor of 2), suggesting that the AUH survey is effective tool to clarify the air dose rate distribution in urban area. The other survey tools on the ground, however, is necessary to clarify the distribution in detail. The measurement error of the AUH survey was suggested to be attributed to the spatial heterogeneity of coefficient to convert the $$gamma$$ ray count rate detected by AUH to the air dose rate.



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Category:Environmental Sciences



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