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| Number of page views | : | 37 |
| Title | Using two detectors concurrently to monitor ambient dose equivalent rates in vehicle surveys of radiocesium contaminated land |
| Alternative title | 放射性セシウムで汚染された土地における二つの検出器を同時に用いた周辺線量当量率の車両サーベイ |
| Publisher | Elsevier |
| Author | Takeishi, Minoru |
| Author | Shibamichi, Masaru |
| Author | Malins, A. |
| Author | Kurikami, Hiroshi |
| Author | Murakami, Mitsuhiro |
| Author | Saegusa, Jun |
| Author | Yoneya, Masayuki |
| Issued date | 2017-10 |
| Language | eng |
| Page | 1p.-12p. |
| Type | report |
| Description | By convention radiation measurements from vehicle-borne surveys are converted to the dose rate at 1 m above the ground in the absence of the vehicle. To improve the accuracy of the converted results from vehicle-borne surveys, we investigated combining measurements from two detectors mounted on the vehicle at different heights above the ground. A dual-detector setup was added to a JAEA monitoring car and compared against hand-held survey meter measurements in Fukushima Prefecture. The dose rates obtained by combining measurements from two detectors were within pm20% of the hand-held reference measurements. The combined results from the two detectors were more accurate than those from either the roof-mounted detector, or the detector inside the vehicle, taken alone. When radiocesium is deficient on a road compared to the adjacent land, mounting detectors high on vehicles yields dose rates closer to the values adjacent to the road. We also investigated mounting heights for vehicle-borne detectors using Monte Carlo gamma-ray simulations. |
| Information source |  JOPSS Relation URLRelation URL |
| URI | https://f-archive.jaea.go.jp/dspace/handle/faa/211362 |
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