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Updated: May 2, 2026

Proton Therapy Delivery and Its Clinical Application in Select Solid Tumor Malignancies
Published on: February 6, 2019
Secondary neutron doses in a compact proton therapy system
F Stichelbaut1, M Closset2, Y Jongen2
1IBA, Chemin du Cyclotron, 3, Louvain-la-Neuve B-1348, Belgium frederic.stichelbaut@iba-group.com.
Abstract:
Proton therapy offers several advantages compared with classical radiotherapy owing to a better dose conformity to the tumour volume. However, proton interactions with beam transport elements and the human tissues lead to the production of secondary neutrons, resulting in an extra whole-body dose with some carcinogenic potential. In this study, the secondary neutron doses generated with an active beam scanning system and with two compact proton therapy systems recently appeared on the market are compared.
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