Measurement of radiation damage of water-based liquid scintillator and liquid scintillator
Abstract
Liquid scintillating phantoms have been proposed as a means to perform real-time 3D dosimetry for proton therapy treatment plan verification. We have studied what effect radiation damage to the scintillator will have upon this application. We have performed measurements of the degradation of the light yield and optical attenuation length of liquid scintillator and water-based liquid scintillator after irradiation by 201 MeV proton beams that deposited doses of approximately 52 Gy, 300 Gy, and 800 Gy in the scintillator. Liquid scintillator and water-based liquid scintillator (composed of 5% scintillating phase) exhibit light yield reductions of 1.74 ± 0.55 % and 1.31 ± 0.59 % after ≈ 800 Gy of proton dose, respectively. Some increased optical attenuation was observed in the irradiated samples, the measured reduction to the light yield is also due to damage to the scintillation light production. Based on our results and conservative estimates of the expected dose in a clinical context, a scintillating phantom used for proton therapy treatment plan verification would exhibit a systematic light yield reduction of approximately 0.1% after a year of operation.
- Authors:
-
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Phenix Medical LLC, Bloomington, IN (United States)
- Publication Date:
- Research Org.:
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- OSTI Identifier:
- 1224191
- Report Number(s):
- BNL-108459-2015-JA
Journal ID: ISSN 1748-0221; R&D Project: PO-022; KA2201020; TRN: US1500788
- Grant/Contract Number:
- SC00112704
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Instrumentation
- Additional Journal Information:
- Journal Volume: 10; Journal Issue: 10; Journal ID: ISSN 1748-0221
- Publisher:
- Institute of Physics (IOP)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; proton therapy; dose verification; water equivalence; water-based liquid scintillator
Citation Formats
Bignell, L. J., Diwan, M. V., Hans, S., Jaffe, D. E., Rosero, R., Vigdor, S., Viren, B., Worcester, E., Yeh, M., and Zhang, C. Measurement of radiation damage of water-based liquid scintillator and liquid scintillator. United States: N. p., 2015.
Web. doi:10.1088/1748-0221/10/10/P10027.
Bignell, L. J., Diwan, M. V., Hans, S., Jaffe, D. E., Rosero, R., Vigdor, S., Viren, B., Worcester, E., Yeh, M., & Zhang, C. Measurement of radiation damage of water-based liquid scintillator and liquid scintillator. United States. https://doi.org/10.1088/1748-0221/10/10/P10027
Bignell, L. J., Diwan, M. V., Hans, S., Jaffe, D. E., Rosero, R., Vigdor, S., Viren, B., Worcester, E., Yeh, M., and Zhang, C. Mon .
"Measurement of radiation damage of water-based liquid scintillator and liquid scintillator". United States. https://doi.org/10.1088/1748-0221/10/10/P10027. https://www.osti.gov/servlets/purl/1224191.
@article{osti_1224191,
title = {Measurement of radiation damage of water-based liquid scintillator and liquid scintillator},
author = {Bignell, L. J. and Diwan, M. V. and Hans, S. and Jaffe, D. E. and Rosero, R. and Vigdor, S. and Viren, B. and Worcester, E. and Yeh, M. and Zhang, C.},
abstractNote = {Liquid scintillating phantoms have been proposed as a means to perform real-time 3D dosimetry for proton therapy treatment plan verification. We have studied what effect radiation damage to the scintillator will have upon this application. We have performed measurements of the degradation of the light yield and optical attenuation length of liquid scintillator and water-based liquid scintillator after irradiation by 201 MeV proton beams that deposited doses of approximately 52 Gy, 300 Gy, and 800 Gy in the scintillator. Liquid scintillator and water-based liquid scintillator (composed of 5% scintillating phase) exhibit light yield reductions of 1.74 ± 0.55 % and 1.31 ± 0.59 % after ≈ 800 Gy of proton dose, respectively. Some increased optical attenuation was observed in the irradiated samples, the measured reduction to the light yield is also due to damage to the scintillation light production. Based on our results and conservative estimates of the expected dose in a clinical context, a scintillating phantom used for proton therapy treatment plan verification would exhibit a systematic light yield reduction of approximately 0.1% after a year of operation.},
doi = {10.1088/1748-0221/10/10/P10027},
journal = {Journal of Instrumentation},
number = 10,
volume = 10,
place = {United States},
year = {Mon Oct 19 00:00:00 EDT 2015},
month = {Mon Oct 19 00:00:00 EDT 2015}
}
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