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An elevation of thoron (and radon) equilibrium factor close to walls based on long-term measurements in dwellings
https://repo.qst.go.jp/records/65144
https://repo.qst.go.jp/records/65144f989cb45-9877-4d6c-afa2-e2320f196816
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2013-09-19 | |||||
| タイトル | ||||||
| タイトル | An elevation of thoron (and radon) equilibrium factor close to walls based on long-term measurements in dwellings | |||||
| 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_c94f | |||||
| 資源タイプ | conference object | |||||
| 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× Stojanovska, Zdenka× Carpentieri, Carmela× Venoso, Gennaro× Francesco, Bochicchio× Ishikawa, Tetsuo× Omori, Yasutaka× Nenad, Veselinovic× Bossew, Peter× Prajith, R.× K., Sapra B.× S., Mayya Y.× Tollefsen, Tore× Mishra, R.× 石川 徹夫× 大森 康孝 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Long-term surveys of time-integrated measurement of thoron (220Rn) progeny concentrations are scarce, owing to the unavailability of established standard techniques. Consequently, sufficient field data on thoron equilibrium factor is also unavailable, and it is well known that it is strongly dependent on the distance from the source (walls in case of indoor environments) as exhibited by thoron. Therefore a survey for long-term equilibrium factor estimation of thoron as well as radon was conducted in 43 dwellings in Sokobanja municipality, Serbia. Considering the inhomogeneous distribution of thoron, all measurements were performed in a 5-month period in a specified and controlled position, i.e. very close to the wall. Thus, a thoron equilibrium factor"close to the wall"(FTnW) was determined. Long-term thoron and radon progeny concentrations were measured by direct thoron (radon) progeny sensors (DTPS/DRPS)(aluminized mylar mounted LR115 nuclear track detectors for selective registration of alpha particle energies); thoron concentration was measured with "radon-thoron discriminative monitor with nuclear track detector"(RADUET); radon (222Rn) concentration was measured both with RADUET and a different closed-type device housing a CR-39 as detector. The equilibrium factor FTnW ranged from 0.0014 to 0.077 with GM(GSD) of 0.0060 (2.2), whereas the equilibrium factor of radon (FRn) ranged from 0.06 to 0.95 with GM(GSD) of 0.23 (2.0). The results are further elaborated and discussed in the paper. | |||||
| 会議概要（会議名, 開催地, 会期, 主催者等） | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 7th International Conference on Protection Against Radon at Home and at Work | |||||
| 発表年月日 | ||||||
| 日付 | 2013-09-06 | |||||
| 日付タイプ | Issued | |||||
