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Field Investigations on Radon, Thoron and Penetrating Environmental Radiation in Several Regions of the Western Balkan Countries
https://repo.qst.go.jp/records/53551
https://repo.qst.go.jp/records/53551559194f1-87c6-4be8-a3af-3e045a9a5577
| Item type | 会議発表論文 / Conference Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2005-07-15 | |||||
| タイトル | ||||||
| タイトル | Field Investigations on Radon, Thoron and Penetrating Environmental Radiation in Several Regions of the Western Balkan Countries | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_5794 | |||||
| 資源タイプ | conference paper | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Zunic, Zora
× Zunic, Zora× Fujimoto, Kenzo× et.al× 藤元 憲三 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | In last decades over 250 anomalous radiation zones of uranium or thorium origin have been identified in the Balkan countries of Yugoslavia, Serbia and Montenegro. During the conflict in the mid - 90's, some hundreds of tons of ammunition containing transuranic waste were deposited in this area (Bosnia and Hercegovina 1995, Serbia and Montenegro 1999). For these reasons, field investigations of environmental adiation over this region are of considerable interest. The aim of this work was to obtain reference values of radon and thoron concentration and of penetrating environmental radiation from field measurements conducted in 2003 over three rural communities: Han Pijesak (Bosnia and Herzegovina), Uzice (West Serbia) and Niska). Average indoor radon and thoron concentrations were measured both with passive radon/thoron UFO type detectors with electrochemically etched (ECE) polycarbonate foils (NIRS system, now at Vinca) and using Radosys detectors with chemically etched CR-39 films. Measurements of outdoor radon and external penetrating radiation absorbed dose rates in air were also conducted in situ, using Radosys detectors and TLDs (LiF:Mg,Cu,P). The measured indoor radon concentration (Bq/m3) ranged from 7.9 (Han Pijesak) to 4730 (Niska Banja). Concentration of indoor thoron (Bq/m3) ranged from 2.2 (Han Pijesak) to 269.4 (Niska Banja). Outdoor radon concentration (Bq/m3) ranged from 2.1 (Han Pijesak) to 168 (Niska Banja). Indoor and outdoor kerma air rates (nGy/h) varied in the range 62-139 and 55-146, respectively. The obtained values can be applied as reference levels for field measurements around other sites where DU ammunition had been deployed. The ECE laboratory at Vinca is now fully operational and can serve as a regional coordinating centre for radon/thoron surveys. |
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| 書誌情報 |
Proceedings of International Congress of the International Radiation Protection Association p. 000, 発行日 2004-05 |
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