2013 Fiscal Year Final Research Report
Preparation of novel polymer gel dosimeters based on a radiation-crosslinked gel
| Project/Area Number |
23710073
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Risk sciences of radiation/Chemicals
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| Research Institution | Japan Atomic Energy Agency |
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Principal Investigator |
HIROKI Akihiro 独立行政法人日本原子力研究開発機構, 原子力科学研究部門・量子ビーム応用研究センター, 研究副主幹 (10370462)
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| Project Period (FY) |
2011 – 2013
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| Keywords | 多糖類ゲル / ヒドロキシプロピルセルロース / 放射線橋かけ技術 / 電子線 / γ線 / ポリマーゲル線量計 / 白濁度合い |
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| Research Abstract |
Polymer gel dosimeters based on radiation-crosslinked hydroxypropyl cellulose (HPC) gel were prepared, which comprised 2-hydroxyethyl methacrylate (HEMA) and polyethylene glycol dimethacrylate (9G) as less toxic monomers and tetrakis (hydroxylmethyl) phosphonium chloride (THPC) as an antioxidant. The polymer gel dosimeters showed cloudiness at only 1 Gy by exposing to 60Co -ray, in which the cloudiness increased approximately linearly with the dose up to 10 Gy. At the same dose, the increase in the cloudiness appeared with increasing concentration of 9G. It was found that the dose response depended on the composition ratio between HEMA, 9G and THPC.
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