Proton Beam Profile Monitoring by Using a GSO (Gd2SiO5) Crystal

Flux monitoring of a proton beam profile is important for understanding the characteristics of a proton beam. The decay constant of a GSO (Gd$_2$SiO$_5$) crystal is small, and a GSO crystal has a higher light output than an organic scintillator crystal. The GSO crystal also has strong hardness again...

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Veröffentlicht in:Journal of the Korean Physical Society 2007, 50(I), , pp.1566-1569
Hauptverfasser: Moon, M. H., Kim, H. J., Kang, Heedong, Park, H., Kim, Sunghwan, Doh, Sihhong, Kim, Kyeryung, Moon, Jinho, Yun, Sangpil
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Sprache:eng
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Zusammenfassung:Flux monitoring of a proton beam profile is important for understanding the characteristics of a proton beam. The decay constant of a GSO (Gd$_2$SiO$_5$) crystal is small, and a GSO crystal has a higher light output than an organic scintillator crystal. The GSO crystal also has strong hardness against radiation. The flux profile of a proton beam from the MC-50 cyclotron at the Korea Institute of Radiological and Medical Sciences (KIRAMS) was measured using a GSO csystal. A 3.0-mm aluminum collimator was used for the beam collimation and for beam flux reduction. A photomultiplier tube (PMT) was attached on one side of the GSO crystal, and a counting method with an embedded CPU was used for the signal processing. We showed that the GSO crystal could be used for proton-beam profile monitoring. KCI Citation Count: 6
ISSN:0374-4884
1976-8524
DOI:10.3938/jkps.50.1566