Experimental validation of beam quality correction factors for proton beams
作者： Carles Gomà , Bénédicte Hofstetter-Boillat , Sairos Safai , Sándor Vörös
DOI: 10.1088/0031-9155/60/8/3207
关键词:
摘要: This paper presents a method to experimentally validate the beam quality correction factors (kQ) tabulated in IAEA TRS-398 for proton beams and determine kQ of non-tabulated ionization chambers (based on already values). The is based exclusively ionometry it consists comparing reading two under same reference conditions Q 60Co. allows one ratio between chambers. In this work, 7 different chamber models were irradiated 60Co beams. For latter, both modulated (spread-out Bragg peak field) monoenergetic (pseudo-monoenergetic studied. beams, was found that experimental values obtained plane-parallel are consistent with TRS-398; whereas cylindrical not consistent?being higher than values. These results support suggestion (of previous publications) should be revised so effective point measurement taken into account when positioning at depth. all studied work each other?except IBA FC65-G, whose value 0.6% lower one. PTW Advanced Markus chamber, which TRS-398, 0.997???0.042 (k?=?2), chamber.
harvard.edu
lib4ri.ch
sci-hub.se 参考文章(19)
Leia Stirling, Karen Willcox, Philip Ferguson, Dava Newman, Kinetics and Kinematics for Translational Motions in Microgravity During Parabolic Flight Aviation, Space, and Environmental Medicine. ,vol. 80, pp. 522- 531 ,(2009) , 10.3357/ASEM.2356.2009
Hugo Palmans, Perturbation factors for cylindrical ionization chambers in proton beams. Part I: corrections for gradients. Physics in Medicine and Biology. ,vol. 51, pp. 3483- 3501 ,(2006) , 10.1088/0031-9155/51/14/014
E. Pedroni, D. Meer, C. Bula, S. Safai, S. Zenklusen, Pencil beam characteristics of the next-generation proton scanning gantry of PSI: design issues and initial commissioning results European Physical Journal Plus. ,vol. 126, pp. 66- ,(2011) , 10.1140/EPJP/I2011-11066-0
Hugo Palmans, Frank Verhaegen, Jean-Marc Denis, Stefaan Vynckier, Dosimetry using plane-parallel ionization chambers in a 75 MeV clinical proton beam Physics in Medicine and Biology. ,vol. 47, pp. 2895- 2905 ,(2002) , 10.1088/0031-9155/47/16/305
Stephen S Yoo, Timothy J Jorgensen, Ann R Kennedy, John D Boice Jr, Alla Shapiro, Tom C-C Hu, Brian R Moyer, Marcy B Grace, Gary J Kelloff, Michael Fenech, Pataje G S Prasanna, C Norman Coleman, Mitigating the risk of radiation-induced cancers: limitations and paradigms in drug development Journal of Radiological Protection. ,vol. 34, ,(2014) , 10.1088/0952-4746/34/2/R25
Joakim Medin, Carl K Ross, Norman V Klassen, Hugo Palmans, Erik Grusell, Jan-Erik Grindborg, Experimental determination of beam quality factors, kQ, for two types of Farmer chamber in a 10 MV photon and a 175 MeV proton beam. Physics in Medicine and Biology. ,vol. 51, pp. 1503- 1521 ,(2006) , 10.1088/0031-9155/51/6/010
Joakim Medin, Pedro Andreo, Monte Carlo calculated stopping-power ratios, water/air, for clinical proton dosimetry (50-250 MeV) Physics in Medicine and Biology. ,vol. 42, pp. 89- 105 ,(1997) , 10.1088/0031-9155/42/1/006
Stefan Lorin, Erik Grusell, Nina Tilly, Joakim Medin, Peter Kimstrand, Bengt Glimelius, Reference dosimetry in a scanned pulsed proton beam using ionisation chambers and a Faraday cup. Physics in Medicine and Biology. ,vol. 53, pp. 3519- 3529 ,(2008) , 10.1088/0031-9155/53/13/008
Hugo Palmans, Frank Verhaegen, Jean-Marc Denis, Stefaan Vynckier, Hubert Thierens, Experimental pwall and pcel correction factors for ionization chambers in low-energy clinical proton beams Physics in Medicine and Biology. ,vol. 46, pp. 1187- 1204 ,(2001) , 10.1088/0031-9155/46/4/319
Harald Paganetti, Andrzej Niemierko, Marek Ancukiewicz, Leo E Gerweck, Michael Goitein, Jay S Loeffler, Herman D Suit, Relative biological effectiveness (RBE) values for proton beam therapy. International Journal of Radiation Oncology Biology Physics. ,vol. 53, pp. 407- 421 ,(2002) , 10.1016/S0360-3016(02)02754-2