505 0

Full metadata record

DC FieldValueLanguage
dc.contributor.author김찬형-
dc.date.accessioned2017-01-10T00:12:36Z-
dc.date.available2017-01-10T00:12:36Z-
dc.date.issued2015-05-
dc.identifier.citationJOURNAL OF THE KOREAN PHYSICAL SOCIETY, v. 66, NO 9, Page. 1439-1447en_US
dc.identifier.issn0374-4884-
dc.identifier.issn1976-8524-
dc.identifier.urihttp://link.springer.com/article/10.3938%2Fjkps.66.1439-
dc.identifier.urihttp://hdl.handle.net/20.500.11754/24995-
dc.description.abstractThe aim of this study is to determine the ion recombination correction factor for a liquid ionization chamber in a high energy photon beam by using our experimental method. The ion recombination correction factors were determined by using our experimental method and were compared with theoretical and experimental methods proposed by using the theoretical method (Greening, Johansson) and the two-dose rate method in a cobalt beam and a high energy photon beam. In order to apply the liquid ionization chamber in a reference and small field dosimetry, we acquired the absorbed dose to water correction coefficient, the beam quality correction factor, and the influence quantities for the microLion chamber according to the TRS-398 protocol and applied the results to a high energy photon beam used in clinical fields. As a result, our experimental method for ion recombination in a cobalt beam agreed with the results from the heoretical method (Greening theory) better than it did with the results from the two-dose rate method. For high energy photon beams, the two-dose rate and our experimental methods were in good agreement, less than 2% deviation, while the theoretical general collection efficiency (Johansson et al.) deviated greatly from the experimental values. When we applied the factors for the absorbed dose to water measurement, the absorbed dose to water for the microLion chamber was in good agreement, within 1%, compared with the values for the PTW 30013 chamber in 6 and 10 MV Clinac iX and 6 and 15 MV Oncor impression. With these results, not only can the microLion ionization chamber be used to measure the absorbed dose to water in a reference condition, it can also be used to a the chamber for small, non-standard field dosimetry.en_US
dc.description.sponsorshipThis study was funded by the Ministry of Science, ICT and Future Planning.en_US
dc.language.isoenen_US
dc.publisherKOREAN PHYSICAL SOCen_US
dc.subjectLiquid ionization chamberen_US
dc.subjectMicroLion chamberen_US
dc.subjectIon recombinationen_US
dc.titleDetermination of ion recombination correction factors for a liquid ionization chamber in megavoltage photon beamsen_US
dc.typeArticleen_US
dc.relation.no9-
dc.relation.volume66-
dc.identifier.doi10.3938/jkps.66.1439-
dc.relation.page1439-1447-
dc.relation.journalJOURNAL OF THE KOREAN PHYSICAL SOCIETY-
dc.contributor.googleauthorChoi, Sang Hyoun-
dc.contributor.googleauthorKim, Kum-Bae-
dc.contributor.googleauthorJi, Young Hoon-
dc.contributor.googleauthorKim, Chan Hyeong-
dc.contributor.googleauthorKim, Seonghoon-
dc.contributor.googleauthorHuh, Hyun Do-
dc.relation.code2015000007-
dc.sector.campusS-
dc.sector.daehakCOLLEGE OF ENGINEERING[S]-
dc.sector.departmentDEPARTMENT OF NUCLEAR ENGINEERING-
dc.identifier.pidchkim-
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > NUCLEAR ENGINEERING(원자력공학과) > Articles
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE