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Continuous measurements of bronchial exposure induced by radon decay products during inharation
https://repo.qst.go.jp/records/44999
https://repo.qst.go.jp/records/44999d25d1a10-7286-4093-a7a9-0de24a3988a5
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2007-10-17 | |||||
| タイトル | ||||||
| タイトル | Continuous measurements of bronchial exposure induced by radon decay products during inharation | |||||
| 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_6501 | |||||
| 資源タイプ | journal article | |||||
| 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 |
Iwaoka, Kazuki
× Iwaoka, Kazuki× Tokonami, Shinji× Yonehara, Hidenori× Ishikawa, Tetsuo× Doi, Masahiro× Kobayashi, Yosuke× Yatabe, Yoshinori× Takahashi, Hiroyuki× Yamada, Yuji× 岩岡 和輝× 床次 眞司× 米原 英典× 石川 徹夫× 土居 雅広× 小林 羊佐× 谷田部 慶憲× 高橋 博路× 山田 裕司 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The deposition of radon decay products is not equal in each of the respiratory regions and as the presence of radon has been linked with an increase in lung cancer risk, it is important to calculate the deposition of radon decay products in each of the respiratory regions. Recently, many studies on the deposition of radon in respiratory regions have been simulated using wire screens. The systems and equipment used in those studies are not suitable for field measurements as their dimensions are relatively massive, nor can they measure continuously. We developed a continuous bronchial dosimeter (CBD) which is suitable for field measurements. It was designed with specifications that allow it to be remain compact. The CBD simulates the deposition of radon decay products in the different respiratory regions by the use of a combination of wire screens. Deposition in the simulated regions of the lung can be continuously estimated in various environments. The ratio of activities deposited in a simulated nasal cavity (N) and tracheobronchial (TB) regions was calculated from the results of simultaneous measurements using CBD-R (reference), CBD-N (nasal), and CBD-TB (tracheobronchial) measurement units. After aerosols were injected into the radon chamber, the ratio of N and TB depositions decreased. This results indicate that the CBD gave a good response to changes in the environment. It was found that the ratio of N and TB deposition also varied with time in each actual environment. | |||||
| 書誌情報 |
Review of Scientific Instruments 巻 78, 号 9, p. 093301-1-093301-4, 発行日 2007-09 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0034-6748 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1063/1.2786270 | |||||
