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A highly sensitive γ-radiation dosimeter based on the CeO2 nanowires

✍ Scribed by Yingying Li; Xiang Dong; Junshan Gao; Daqian Hei; Xuechao Zhou; Haiqian Zhang

Publisher
Elsevier Science
Year
2009
Tongue
English
Weight
679 KB
Volume
41
Category
Article
ISSN
1386-9477

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✦ Synopsis

Solution of CeO 2 nanowires synthesized by a hydrothermal method was investigated for the purpose of developing a new aqueous g-radiation dosimeter. The solution was exposed to a 137 Cs g-radiation source at a dose rate of 2.4 Â 10 À2 mGy/min at room temperature. The aqueous CeO 2 nanowire dosimeter exhibited high sensitivity to g-radiation of dose less than 1000 mGy and a good linearity of response in dose range from 20 to 500 mGy. The nanowires dosimeter may be used as a highly sensitive as well as cost-effective dosimeter in ultra-low-dose environment.

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