التفاصيل البيبلوغرافية
العنوان: |
[Clinical calibration dosimetry in JSMP-01: measurements using Farmer-type cylindrical ion chambers.]. |
المؤلفون: |
Araki F; Department of Radiological Technology, Kumamoto University School of Health Sciences, Kumamoto 862-0976, Japan. f_araki@kumamoto-u.ac.jp., Kumagai K, Yoshiura T, Oura H, Tachibana M, Moribe N, Tajima H, Yoshida A, Kido T |
المصدر: |
Igaku butsuri : Nihon Igaku Butsuri Gakkai kikanshi = Japanese journal of medical physics : an official journal of Japan Society of Medical Physics [Igaku Butsuri] 2005; Vol. 25 (3), pp. 104-13. |
نوع المنشور: |
Journal Article |
اللغة: |
Japanese |
بيانات الدورية: |
Publisher: Nihon Igaku Butsuri Gakkai Country of Publication: Japan NLM ID: 101125977 Publication Model: Print Cited Medium: Print ISSN: 1345-5354 (Print) Linking ISSN: 13455354 NLM ISO Abbreviation: Igaku Butsuri Subsets: MEDLINE |
أسماء مطبوعة: |
Original Publication: Chiba-shi : Nihon Igaku Butsuri Gakkai, 2000- |
مواضيع طبية MeSH: |
Farmers* , Radiometry*, Calibration ; Electrons ; Humans ; Photons ; Radiotherapy, High-Energy ; Water |
مستخلص: |
The Japan Society of Medical Physics (JSMP) Task Group published Standard dosimetry of absorbed dose in external beam radiotherapy (Standard dosimetry 01) as a new high-energy photon and electron dosimetry protocol in 2002. In this study, we present Standard dosimetry 01 as the JSMP-01 protocol for the convenience of users. This protocol is based on using an ion chamber having a (60)Co absorbed dose to water calibration coefficient, N(D,w), which is calculated from a (60)Co exposure calibration coefficient, N(c). We present dose comparisons between a reference chamber and various Farmer-type cylindrical chambers with different wall materials. The absorbed dose to water was compared at the calibration depths of 5 cm for a (60)Co beam, 10 cm for photons, and d(c) = 0.6 R(50) - 0.1 (cm) for electrons according to JSMP-01. The JARP chamber in the Kyushu Regional Center which meets third-order standards in Japan was used as the reference chamber. The absorbed dose to water for the Farmer-type chambers determined according to JSMP-01 agreed with that for the JARP chamber within 1% for photon and electron beams. The doses obtained by JSMP-01 and the Japan Association of Radiological Physics protocol (JARP-86) were also compared for photon and electron beams. For the Farmer-type chambers with photon beams, JSMP-01 results were up to 1.5% higher than JARP-86 results. For electron beams JSMP-01 results were higher than JARP-86 results by 1.3-2.8%. |
المشرفين على المادة: |
059QF0KO0R (Water) |
تواريخ الأحداث: |
Date Created: 20051224 Date Completed: 20160423 Latest Revision: 20181203 |
رمز التحديث: |
20231215 |
PMID: |
16373986 |
قاعدة البيانات: |
MEDLINE |