WEKO3
アイテム
CESIUM DECONTAMINATION FACTOR DETERMINATION ON DIFFERENT EXTRACTION CHROMATOGRAPHY RESINS
https://repo.qst.go.jp/records/67067
https://repo.qst.go.jp/records/6706734a3e45d-3ef3-468a-8e75-e61dec2acbe4
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2018-12-28 | |||||
| タイトル | ||||||
| タイトル | CESIUM DECONTAMINATION FACTOR DETERMINATION ON DIFFERENT EXTRACTION CHROMATOGRAPHY RESINS | |||||
| 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 |
Kavasi, Norbert
× Kavasi, Norbert× Somboon, Siriprapa× Aono, Tatsuo× Ｋａｖａｓｉ Ｎｏｒｂｅｒｔ× そむぶーん しりっぷらぱー× 青野 辰雄 |
|||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | During the nuclear accident of the Fukushima Daiichi Nuclear Power Plant (FDNPP) huge amounts (more than 1017 Bq) of nuclear fission products, such as 131I, 134Cs, 137Cs and 90Sr etc., were released into the atmosphere and the Pacific Ocean1. 137Cs and 90Sr have long-lasting radioecological impact since both have longer half-life (~30 y) than 131I. Furthermore, the 90Sr has a significant biological half-life in the human body. Due to its chemical similarity to calcium, it accumulates in bones and irradiates the bone marrow, causing its high radio-toxicity2. Monitoring 90Sr in the environment is therefore necessary in case of a nuclear disaster. In case of the Fukushima accident, the radioactive contamination in the environment is dominated by radiocesium isotopes (134Cs and 137Cs). In soil samples the magnitudes of these isotopes are around four times higher than the contamination of 90Sr isotope3,4. Radiocesium isotopes emit beta particles and coexist with gamma radiation. Therefore, high effective separation is an essential point for the reliable analysis of the pure beta emitter 90Sr isotope before any radiometric measurement methods. For chemical separation of 90Sr, different procedures are available such as, selective precipitation, liquid-liquid extraction, ion-exchange chromatography and the most popular extraction chromatography. Revealing the high strontium selectivity of crown ethers, an effective and simple extraction chromatography method was developed for strontium separation. In this work cesium decontamination factor of different extraction chromatography resins will be determined using contaminated Fukushima soil samples. | |||||
| 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 | 9th International Conference on High Level Environmental Radiation Areas-For Understanding Chronic Low-Dose-Rate Radiation Exposure Health Effects and Social Impacts (ICHLERA 2018)に参加し口頭発表をする | |||||
| 発表年月日 | ||||||
| 日付 | 2018-09-24 | |||||
| 日付タイプ | Issued | |||||
