Comparison of the absorbed dose measurement methods for high-energy electron beams / 中华放射医学与防护杂志
Chinese Journal of Radiological Medicine and Protection
;
(12): 314-317, 2013.
Article
in Chinese
| WPRIM
| ID: wpr-434860
ABSTRACT
Objective To study the difference in the measurement of the absorbed dose in water between the dosimetry protocols of IAEA TRS-398 and TRS-277 for high-energy electron beams.Methods The differences were compare in absorbed doses from 6 kinds of electron beams among the three methods of using cylindrical chamber,plane-parallel chamber and cross-calibrated plane-parallel chamber which was calibrated in user' s high-energy electron beam according to IAEA TRS-398 and IAEA TRS-277.Results The difference in absorbed doses measured,following the two protocols,was 0.4%-2.3% for planeparallel chamber,0.6%-2.2% for cylindrical chamber,and 0.5%-2.0% for cross-calibrated chamber.The differences in measured absorbed doses between the two dosimetry protocols were slight.Conclusions The methods used to determine absorbed dose to water recommanded by IAEA TRS-398 for high-energy beams are more accurate and more suitable for clinical users to measure compared to the TRS-277.
Full text:
Available
Index:
WPRIM (Western Pacific)
Type of study:
Practice guideline
Language:
Chinese
Journal:
Chinese Journal of Radiological Medicine and Protection
Year:
2013
Type:
Article
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