Abstract
Here, we report on the measurement of scintillation responses of scintillation fibers for precision dose verification in proton therapy. A detector equipped with two layers of 1-mm-thick scintillation fibers and 46-channel silicon photodiodes was constructed and tested with 45-MeV proton beams provided by the MC50 proton cyclotron at the Korea Institute of Radiological and Medical Science (KIRAMS). Scintillation responses of the detector for the protons were measured as a function of depth in an absorber made of PMMA (poly methyl methacrylate) and PET (polyester) films whose thicknesses varied from 0.148 to 2.0 g·cm -2. Quenching of the scintillation responses of the detector was evaluated by comparison of the data to the specific energy loss predicted by GEANT4-based simulations. The first-order parameter of the Birks model, kB, for scintillation fibers, as derived from the ratios of specific energy losses to scintillation responses, was (2.38 ± 0.17) × 10 -2.
| Original language | English |
|---|---|
| Pages (from-to) | 725-730 |
| Number of pages | 6 |
| Journal | Journal of the Korean Physical Society |
| Volume | 60 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2012 Mar 1 |
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Keywords
- Birks-model kB parameter
- Dose verification
- GEANT4
- Proton therapy
- Scintillation fibers
ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Measurement of scintillation responses of scintillation fibers for dose verification in proton therapy. / Kim, C.; Hong, Byungsik; Jhang, G.; Joo, E.; Lee, K. S.; Lee, K. S.; Lee, S.; Lee, S. K.; Park, Sung Keun; Shim, H. H.; Shin, S. S.; Sim, K. S.; Cha, H. K.
In: Journal of the Korean Physical Society, Vol. 60, No. 5, 01.03.2012, p. 725-730.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Measurement of scintillation responses of scintillation fibers for dose verification in proton therapy
AU - Kim, C.
AU - Hong, Byungsik
AU - Jhang, G.
AU - Joo, E.
AU - Lee, K. S.
AU - Lee, K. S.
AU - Lee, S.
AU - Lee, S. K.
AU - Park, Sung Keun
AU - Shim, H. H.
AU - Shin, S. S.
AU - Sim, K. S.
AU - Cha, H. K.
PY - 2012/3/1
Y1 - 2012/3/1
N2 - Here, we report on the measurement of scintillation responses of scintillation fibers for precision dose verification in proton therapy. A detector equipped with two layers of 1-mm-thick scintillation fibers and 46-channel silicon photodiodes was constructed and tested with 45-MeV proton beams provided by the MC50 proton cyclotron at the Korea Institute of Radiological and Medical Science (KIRAMS). Scintillation responses of the detector for the protons were measured as a function of depth in an absorber made of PMMA (poly methyl methacrylate) and PET (polyester) films whose thicknesses varied from 0.148 to 2.0 g·cm -2. Quenching of the scintillation responses of the detector was evaluated by comparison of the data to the specific energy loss predicted by GEANT4-based simulations. The first-order parameter of the Birks model, kB, for scintillation fibers, as derived from the ratios of specific energy losses to scintillation responses, was (2.38 ± 0.17) × 10 -2.
AB - Here, we report on the measurement of scintillation responses of scintillation fibers for precision dose verification in proton therapy. A detector equipped with two layers of 1-mm-thick scintillation fibers and 46-channel silicon photodiodes was constructed and tested with 45-MeV proton beams provided by the MC50 proton cyclotron at the Korea Institute of Radiological and Medical Science (KIRAMS). Scintillation responses of the detector for the protons were measured as a function of depth in an absorber made of PMMA (poly methyl methacrylate) and PET (polyester) films whose thicknesses varied from 0.148 to 2.0 g·cm -2. Quenching of the scintillation responses of the detector was evaluated by comparison of the data to the specific energy loss predicted by GEANT4-based simulations. The first-order parameter of the Birks model, kB, for scintillation fibers, as derived from the ratios of specific energy losses to scintillation responses, was (2.38 ± 0.17) × 10 -2.
KW - Birks-model kB parameter
KW - Dose verification
KW - GEANT4
KW - Proton therapy
KW - Scintillation fibers
UR - http://www.scopus.com/inward/record.url?scp=84859950528&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84859950528&partnerID=8YFLogxK
U2 - 10.3938/jkps.60.725
DO - 10.3938/jkps.60.725
M3 - Article
VL - 60
SP - 725
EP - 730
JO - Journal of the Korean Physical Society
JF - Journal of the Korean Physical Society
SN - 0374-4884
IS - 5
ER -