Development of thermal neutron-sensitive glass dosemeter containing lithium

Authors: Maki, Daisuke; Kobayashi, Hatsumi; Sato, Fuminobu; Murata, Isao; Kato, Yushi; Tanaka, Teruya; Yamamoto, Takayoshi; Iida, Toshiyuki

Source: Radiation Protection Dosimetry, Volume 144, Numbers 1-4, 9 March 2011 , pp. 226-230(5)

Publisher: Oxford University Press

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Abstract:

New radiophotoluminescence (RPL) phosphate glass containing ⁶Li was successfully made from the powder of NaPO₃, Al(PO₃)₃, LiOH, HPO₃ and AgCl. The ternary diagram of NaPO₃Al(PO₃)₃LiPO₃ has clarified the region where satisfactory RPL characteristics of the glass are kept up. The synthesised phosphate glass indicated good RPL characteristics on the condition that the content of LiPO₃ was below 10 wt. Gamma-ray irradiation experiments showed that the newly synthesised phosphate glass had satisfactory linearity and wide dynamic range in dose measurement and low variation in sensitivity. It was confirmed from thermal neutron irradiation experiments that a pair of the newly synthesised phosphate glass containing enriched ⁶Li and ⁷Li, or ⁿLi and enriched ⁷Li could be effectively used for the evaluation of thermal neutron dosimetry.

Document Type: Research article

DOI: http://dx.doi.org/10.1093/rpd/ncq552

Publication date: 2011-03-09

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RPD publishes peer-reviewed papers covering all aspects of personal and environmental dosimetry and monitoring for both ionising and non-ionising radiations. This includes biological aspects, physical concepts, biophysical dosimetry, external and internal personal dosimetry and monitoring, environmental and workplace monitoring and accident dosimetry and dosimetry related to the protection of patients.