Localized Multilayer Shielding of an Electron Beam Irradiation Station for FLASH Radiotherapy Experiments
FLASH radiotherapy (FLASH-RT) is a cancer treatment delivering high-dose radiation within microseconds, reducing side-effects on healthy tissues. Implementing this technology at the PBP-CMU Electron Linac Laboratory poses challenges in ensuring radiation safety within a partially underground hall wi...
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MDPI AG
2025-05-01
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| author | Kanlayaporn Kongmali Pittaya Apiwattanakul Phanthip Jaikeaw Sakhorn Rimjaem |
| author_facet | Kanlayaporn Kongmali Pittaya Apiwattanakul Phanthip Jaikeaw Sakhorn Rimjaem |
| author_sort | Kanlayaporn Kongmali |
| collection | DOAJ |
| description | FLASH radiotherapy (FLASH-RT) is a cancer treatment delivering high-dose radiation within microseconds, reducing side-effects on healthy tissues. Implementing this technology at the PBP-CMU Electron Linac Laboratory poses challenges in ensuring radiation safety within a partially underground hall with thin walls and ceiling structures. This study develops a localized shielding design for electron beams (6–25 MeV) using the GEANT4 release 11.2.2 Monte Carlo simulation toolkit. A multilayer system of lead, iron, polyethylene, and concrete effectively attenuates X-rays, gamma-rays, and neutrons, achieving dose levels below 1 mSv/year for public areas and within 20 mSv/year for controlled areas, meeting international standards. The B-factor analysis highlights efficient low-energy gamma attenuation and thicker shielding requirements for high-energy rays. The design minimizes radiation leakage, ensuring safe operation for FLASH-RT while safeguarding personnel and the environment. Future work includes constructing and validating the system, with methodologies applicable to other electron beam facilities. |
| format | Article |
| id | doaj-art-780aa5622b924f4495e4b1a9da3b554c |
| institution | OA Journals |
| issn | 2571-712X |
| language | English |
| publishDate | 2025-05-01 |
| publisher | MDPI AG |
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| series | Particles |
| spelling | doaj-art-780aa5622b924f4495e4b1a9da3b554c2025-08-20T02:21:52ZengMDPI AGParticles2571-712X2025-05-01825110.3390/particles8020051Localized Multilayer Shielding of an Electron Beam Irradiation Station for FLASH Radiotherapy ExperimentsKanlayaporn Kongmali0Pittaya Apiwattanakul1Phanthip Jaikeaw2Sakhorn Rimjaem3PBP-CMU Electron Linac Laboratory, Plasma and Beam Physics Research Facility, Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai 50200, ThailandPBP-CMU Electron Linac Laboratory, Plasma and Beam Physics Research Facility, Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai 50200, ThailandPBP-CMU Electron Linac Laboratory, Plasma and Beam Physics Research Facility, Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai 50200, ThailandPBP-CMU Electron Linac Laboratory, Plasma and Beam Physics Research Facility, Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai 50200, ThailandFLASH radiotherapy (FLASH-RT) is a cancer treatment delivering high-dose radiation within microseconds, reducing side-effects on healthy tissues. Implementing this technology at the PBP-CMU Electron Linac Laboratory poses challenges in ensuring radiation safety within a partially underground hall with thin walls and ceiling structures. This study develops a localized shielding design for electron beams (6–25 MeV) using the GEANT4 release 11.2.2 Monte Carlo simulation toolkit. A multilayer system of lead, iron, polyethylene, and concrete effectively attenuates X-rays, gamma-rays, and neutrons, achieving dose levels below 1 mSv/year for public areas and within 20 mSv/year for controlled areas, meeting international standards. The B-factor analysis highlights efficient low-energy gamma attenuation and thicker shielding requirements for high-energy rays. The design minimizes radiation leakage, ensuring safe operation for FLASH-RT while safeguarding personnel and the environment. Future work includes constructing and validating the system, with methodologies applicable to other electron beam facilities.https://www.mdpi.com/2571-712X/8/2/51local shieldingradiation safetyMonte Carlo simulationbuildup factor |
| spellingShingle | Kanlayaporn Kongmali Pittaya Apiwattanakul Phanthip Jaikeaw Sakhorn Rimjaem Localized Multilayer Shielding of an Electron Beam Irradiation Station for FLASH Radiotherapy Experiments Particles local shielding radiation safety Monte Carlo simulation buildup factor |
| title | Localized Multilayer Shielding of an Electron Beam Irradiation Station for FLASH Radiotherapy Experiments |
| title_full | Localized Multilayer Shielding of an Electron Beam Irradiation Station for FLASH Radiotherapy Experiments |
| title_fullStr | Localized Multilayer Shielding of an Electron Beam Irradiation Station for FLASH Radiotherapy Experiments |
| title_full_unstemmed | Localized Multilayer Shielding of an Electron Beam Irradiation Station for FLASH Radiotherapy Experiments |
| title_short | Localized Multilayer Shielding of an Electron Beam Irradiation Station for FLASH Radiotherapy Experiments |
| title_sort | localized multilayer shielding of an electron beam irradiation station for flash radiotherapy experiments |
| topic | local shielding radiation safety Monte Carlo simulation buildup factor |
| url | https://www.mdpi.com/2571-712X/8/2/51 |
| work_keys_str_mv | AT kanlayapornkongmali localizedmultilayershieldingofanelectronbeamirradiationstationforflashradiotherapyexperiments AT pittayaapiwattanakul localizedmultilayershieldingofanelectronbeamirradiationstationforflashradiotherapyexperiments AT phanthipjaikeaw localizedmultilayershieldingofanelectronbeamirradiationstationforflashradiotherapyexperiments AT sakhornrimjaem localizedmultilayershieldingofanelectronbeamirradiationstationforflashradiotherapyexperiments |