Spot scanning system for proton radiotherapy

In order to provide a uniform and desirable dose distribution over a large radiation field, spot beam scanning is one of the most useful methods. A new spot beam scanning system was constructed for a 70 MeV proton beam. The lateral dose distribution was uniform with +/- 2.5% for an 18 cm square fiel...

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Bibliographic Details
Published inMedical physics (Lancaster) Vol. 7; no. 4; p. 365
Main Authors Kanai, T, Kawachi, K, Kumamoto, Y, Ogawa, H, Yamada, T, Matsuzawa, H, Inada, T
Format Journal Article
LanguageEnglish
Published United States 01.07.1980
Subjects
Particle Accelerators
Protons
Radiotherapy, High-Energy - instrumentation
Technology, Radiologic
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Summary:In order to provide a uniform and desirable dose distribution over a large radiation field, spot beam scanning is one of the most useful methods. A new spot beam scanning system was constructed for a 70 MeV proton beam. The lateral dose distribution was uniform with +/- 2.5% for an 18 cm square field. It was possible to control the dose at each point in the radiation field by this spot scanning method. This system has been confirmed to be satisfactory for delivering a proton beam in the desired field shape and dose level.
ISSN:0094-2405
2473-4209
DOI:10.1118/1.594693