Prog Med Phys.  2013 Sep;24(3):140-144. 10.14316/pmp.2013.24.3.140.

Reference Dosimetry and Calibration of Glass Dosimeters for Cs-137 Gamma-rays

• Moon YM
• Rhee DJ
• Kim JK
• Kang YR
• Lee MW
• Lim H
• Jeong DH

• KMID: 1910577
• DOI: http://doi.org/10.14316/pmp.2013.24.3.140

Abstract

In this research, the glass dosimeter was calibrated to measure the standard absorbed dose of the Cs-137 irradiator and absorbed dose in a biological sample. Absorbed dose in water for Cs-137 gamma ray was determined by the IAEA TRS-277 protocol. The PTW-TM30013 ion chamber and the PTW-TM41023 water phantom were utilized for measuring absorbed dose and the value was compared with the reading from DoseAce GD-302M glass dosimeter from Asahi Techno Glass Corporation for its calibration. The uncertainty of measurement (1sigma) of the calibrated glass dosimeter was 2.7% and this result would be applied to improve the accuracy in measurement of absorbed dose in a biological sample.

Keyword

Cs-137 irradiator; TRS-277 protocol; Glass dosimeter

MeSH Terms

Calibration*
Gamma Rays
Glass*
Uncertainty
Water
Water

Figure

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  Fig. 1. A photography of geometrical setup for measuring absorbed dose to water for a Cs-137 gamma-ray irradiator.

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  Fig. 2. A glass dosimeter located at a depth in water using Markus chamber adaptor.

Reference

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