Nuclear Engineering and Technology

Korean Nuclear Society (한국원자력학회)
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EFFECTIVE DOSE MEASUREMENT FOR CONE BEAM COMPUTED TOMOGRAPHY USING GLASS DOSIMETER

  • Moon, Young Min (Research Center, Dongnam Inst. of Radiological and Medical Sciences) ;
  • Kim, Hyo-Jin (Research Center, Dongnam Inst. of Radiological and Medical Sciences) ;
  • Kwak, Dong Won (Department of physics, DongA University) ;
  • Kang, Yeong-Rok (Research Center, Dongnam Inst. of Radiological and Medical Sciences) ;
  • Lee, Man Woo (Research Center, Dongnam Inst. of Radiological and Medical Sciences) ;
  • Ro, Tae-Ik (Department of physics, DongA University) ;
  • Kim, Jeung Kee (Research Center, Dongnam Inst. of Radiological and Medical Sciences) ;
  • Jeong, Dong Hyeok (Research Center, Dongnam Inst. of Radiological and Medical Sciences)
  • Received : 2012.11.08
  • Accepted : 2013.09.25
  • Published : 2014.04.25
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Abstract

During image-guided radiation therapy, the patient is exposed to unwanted radiation from imaging devices built into the medical LINAC. In the present study, the effective dose delivered to a patient from a cone beam computed tomography (CBCT) machine was measured. Absorbed doses in specific organs listed in ICRP Publication 103 were measured with glass dosimeters calibrated with kilovolt (kV) X-rays using a whole body physical phantom for typical radiotherapy sites, including the head and neck, chest, and pelvis. The effective dose per scan for the head and neck, chest, and pelvis were $3.37{\pm}0.29$, $7.36{\pm}0.33$, and $4.09{\pm}0.29$ mSv, respectively. The results highlight the importance of the compensation of treatment dose by managing imaging dose.

Keywords

References

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