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KMID : 0384620110220040198
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Korean Journal of Medical Physics
2011 Volume.22 No. 4 p.198 ~ p.205
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Evaluation of Dose Distribution Using a Radiophotoluminescence Glass Dosimeter in Biobeam8000 Gamma Irradiation Device
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Shin Sang-Hun
Lee Sung-Hyun
Son Ki-Hong
Lee Hyun-Ho
Kim Kum-Bae
Jung Hai-Jo
Ji Young-Hoon
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Abstract
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Gamma irradiator is widely used for cell, animal experiment, irradiation for blood, dose measurement, and education. Biobeam8000 gamma irradiator (STS Steuerungstechnik &. Strahlenschutz GmbH, Braunschweig, Germany, Cs137, 81.4 TBq) that KIRAMS (Korea Institute of Radiological and Medical Science) has is a irradiation device that enables to be used in large-capacity of 7.5 L and extensive area. Cs-137 source moves range of 24 cm back-and-forth in a regular cycle in beaker for uniform irradiation and a beaker that puts a specimen like existing radiation irradiator such as Gammacell3000 rotates during irradiation. Precise dose information according to the location of radiation source would be needed because of the movement of radiation source, whereas radiation could be uniformly irradiated in comparison with existing gamma irradiator. In this study, dose distribution of the inside beaker located in Biomeam8000 gamma irradiator was measured using glass dosimeter, and dose evaluation and distribution regarding dose linearity and dose reproducibility were implemented based on measurement results. This aims to show guideline for efficient use of irradiator based on measurement result when doing experiment or radiation exposure.
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KEYWORD
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Gamma irradiator, Biobeam8000, Glass dosimeter, Dose linearity, Dose reproducibility, Dose distribution
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