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Verdera, A.; Torres-Sanchez, P.; Praena, J.; Porras, I. |
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Title |
Study of the out-of-field dose from an accelerator-based neutron source for boron neutron capture therapy |
Type |
Journal Article |
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Year |
2024 |
Publication |
Applied Radiation and Isotopes |
Abbreviated Journal |
Appl. Radiat. Isot. |
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Volume |
212 |
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Pages |
111458 - 6pp |
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Keywords |
BNCT; Neutrons; Out-of-field; Equivalent dose; Ambient dose |
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Abstract |
One important issue in Boron Neutron Capture Therapy is the delivered dose to the tissues outside the tumor. An international standard for light ion beam systems sets two recommended limits for out-of-field dose based on distance from the field edge: maximum absorbed dose from all radiation types shall not exceed 0.5 % of the maximum dose at distances 15 cm to 50 cm from the field edge. At distances > 50 cm from the field edge, the maximum absorbed dose shall not exceed 0.1 %. This paper is a continuation of our previous works focused on the design of an accelerator-based neutron source for BNCT. We already designed a novel Beam Shape Assembly which meets the IAEA criteria for BNCT treatments. Using this BSA, in the present work, we characterize by Monte Carlo simulations the dose outside the neutron field. The out-of-field dose has been assessed via estimates using the ambient and equivalent dose. Also the boron uptake in healthy tissues has been analyzed for the equivalent dose computation. It is concluded that our design for a future accelerator-based source for BNCT meets reasonably well the criteria defined from other forms of radiotherapy on both equivalent and effective dose outside the field. |
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Address |
[Verdera, Antonia; Praena, Javier; Porras, Ignacio] Univ Granada, Dept Atom Mol & Nucl Phys, Granada, Spain |
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Publisher |
Pergamon-Elsevier Science Ltd |
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Language |
English |
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ISSN |
0969-8043 |
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Notes |
WOS:001291259700001 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
no |
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Call Number |
IFIC @ pastor @ |
Serial |
6231 |
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