A novel approach with quadrupole magnets for precise deflection, scattering and focusing of very high energy electron beams (VHEE)
A novel approach involving quadrupole magnets has been proposed to deflect and disperse electrons in the irradiation fields, as well as a system for focusing beams at specific depths. This research also presents a comparison between VHEE and conventional radiotherapy, supported by the validation of...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
KeAi Communications Co., Ltd.
2025-06-01
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| Series: | Nuclear Analysis |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2773183925000217 |
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| Summary: | A novel approach involving quadrupole magnets has been proposed to deflect and disperse electrons in the irradiation fields, as well as a system for focusing beams at specific depths. This research also presents a comparison between VHEE and conventional radiotherapy, supported by the validation of our Monte Carlo simulations using real measurement data for low-energy electrons (6, 9 and 15 MeV) in water and air, thus ensuring the reliability of our results. Simulations demonstrate high accuracy, with agreement with measurement data of up to 0.58 % and less than 1.86 % for all validated energies and fields. The results show a significant reduction in entrance dose (82.4 %) with focused beams compared to unfocused beams, as well as a 17.6 % reduction at a depth of 30 cm. The study of the spread electron peak (SOEP) for 4 focused beams varies in magnetic field intensity to cover a depth of 11 cm–18 cm, with an entrance dose at a depth of 0.5 mm of 27.15 % and 24.5 % of the exit dose at a depth of 40 cm. The VHEEs also offer the advantage of low Linear Energy Transfer (LET) compared with protons, which reduces the risk of damage several times over. |
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| ISSN: | 2773-1839 |