Study on the Evaluation of TRS-398 Quality Factors with Central Electrode Corrections for Small Cylindrical Chambers.
- Author:
Yeong Rok KANG
1
;
Chang Yeol LEE
;
Jin Ho KIM
;
Young Min MOON
;
Dong Won KWAK
;
Sang Koo KANG
;
Jeung Kee KIM
;
Kwangmo YANG
;
Dong Hyeok JEONG
Author Information
1. Research Center, Dongnam Inst. of Radiological & Medical Sciences, Busan, Korea. physics7@empal.com
- Publication Type:Original Article
- Keywords:
TRS-398 protocol;
Quality factor;
Central electrode correction
- MeSH:
Electrodes;
Electrons
- From:Korean Journal of Medical Physics
2011;22(3):148-154
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
The quality factors (kQ,Q0) were evaluated by appling the results recently studied for the effect of central electrode in TRS-398 protocol. The PTW-31010 and IBA-CC13 chambers were used in this study. The quality factors were calculated as a function of beam quality for high energy electron and photon beams and compared with data currently used in TRS-398 protocol. In the PTW-31010 chamber using aluminium electrode, appling the new central electrode collections, the quality factors were 0.4% and 0.9% higher than current TRS-398 data for high energy photon and electron beams respectively. In the IBA-CC13 chamber using C-552 electrode, there are no variations in quality factors compared to TRS-398 data currently used.
