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Original Article

Korean Journal of Medical Physics 2015; 26(1): 1-5

Published online March 31, 2015

Copyright © Korean Society of Medical Physics.

Measurement of Electron Beam Output for the Prototype Compact Linac

Sung-woo Kim*†, Sang Koo Kang*, Dong Joo Rhee*, Heuijin Lim*, Manwoo Lee*, Jungyu Yi*, Mujin Lee*, Kwangmo Yang*, Tae Ik Ro, Dong Hyeok Jeong*

*Research Center, Dongnam Inst. of Radiological & Medical Sciences, Department of Material Physics, Dong-A University, Busan, Korea

Received: February 17, 2015; Revised: March 9, 2015; Accepted: March 13, 2015

Abstract

The C-band compact linear accelerator (linac) is being developed at Dongnam Institute of radiological & Medical Sciences (DIRAMS) for medical and industrial applications. This paper was focused on the output measurement of the electron beam generated from the prototype electron linac. The dose rate was measured in unit of cGy/min per unit pulse frequency according to the IAEA TRS-398 protocol. Exradin-A10 Markus type plane parallel chamber used for the measurement was calibrated in terms of dose to water at the reference depth in water. The beam quality index (R50) was determined by the radiochromic film with a solid water phantom approximately due to low energy electrons. As a result, the determined electron beam output was 17.0 cGy/(minㆍHz). The results were used to monitor the accelerator performance during the development procedure.

KeywordsElectron beam output, TRS-398 protocol, Prototype linac

Korean Society of Medical Physics

Vol.35 No.2
June 2024

pISSN 2508-4445
eISSN 2508-4453
Formerly ISSN 1226-5829

Frequency: Quarterly

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