title: [Comparison of the absorbed dose at calibration depth of photon beams using the Japan Society of Medical Physics 12 beam quality conversion factor in the presence or absence of a waterproofing sleeve].
abstract: In standard external beam radiotherapy dosimetry, which is based on absorbed dose by water, the absorbed dose at any calibration depth is calculated using the same beam quality conversion factor, regardless of the presence or absence of a waterproofing sleeve. In this study, we evaluated whether there were differences between absorbed doses at calibration depths calculated using a beam quality conversion factor including a wall correction factor that corresponds to a waterproofing sleeve thickness of 0.3 mm, and without a waterproofing sleeve. The Japan Society of Medical Physics (JSMP) has reported that the uncertainty of the results using a beam quality conversion factor that included a wall correction factor corresponding to a waterproofing sleeve thickness of 0.3 mm, regardless of the presence or absence of the sleeve, was 0.2%. This uncertainty proved to be in agreement with the reported range.
authors.affiliation: Department of Radiology, University of Fukui Hospital School of Health Sciences, College of Medical, Pharmaceutical and Health Sciences, Kanazawa University.
authors.forename: Naoki
authors.initials: N
authors.lastname: Kinoshita
authors.forename: Akihiro
authors.initials: A
authors.lastname: Takemura
authors.forename: Akinobu
authors.initials: A
authors.lastname: Kita
authors.forename: Emi
authors.initials: E
authors.lastname: Murai
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Nishimoto
authors.forename: Akiko
authors.initials: A
authors.lastname: Toi
authors.forename: Masato
authors.initials: M
authors.lastname: Shimada
authors.forename: Kouhei
authors.initials: K
authors.lastname: Sasamoto
authors.forename: Toshiki
authors.initials: T
authors.lastname: Adachi
mesh_terms: D000042:Absorption; D002138:Calibration; D007564:Japan; D017785:Photons; D011874:Radiometry / Q000295:instrumentation / Q000379:methods*; D012958:Societies, Scientific; D014867:Water
chemical_list: D014867:Water