PARTICLE BEAM THERAPY APPARATUS AND PARTICLE BEAM THERAPY METHOD

To provide a particle beam therapy technique capable of suppressing the radial expansion of a particle beam while expanding the Bragg peak width of the particle beam.SOLUTION: A particle beam therapy apparatus 1 includes: a beam emitting unit 30 that emits a particle beam B toward a patient; an irra...

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Main Authors UCHIDA SAYA, HARA YOSUKE, TANSEI RYOHEI, NAGAMOTO YOSHIFUMI, KASAI SHIGERU
Format Patent
LanguageEnglish
Japanese
Published 04.06.2020
Subjects
ELECTROTHERAPY
HUMAN NECESSITIES
HYGIENE
MAGNETOTHERAPY
MEDICAL OR VETERINARY SCIENCE
RADIATION THERAPY
ULTRASOUND THERAPY
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Summary:To provide a particle beam therapy technique capable of suppressing the radial expansion of a particle beam while expanding the Bragg peak width of the particle beam.SOLUTION: A particle beam therapy apparatus 1 includes: a beam emitting unit 30 that emits a particle beam B toward a patient; an irradiation port cover 31 that covers the beam emitting unit 30; and an energy modulation unit 41 that is provided to correspond to a portion of the irradiation port cover 31 closest to a patient P, and that expands the Bragg peak width of a passing particle beam B.SELECTED DRAWING: Figure 3 【課題】粒子線ビームのブラッグピークを拡幅させつつ、粒子線ビームの径方向の拡がりを抑えることができる粒子線治療技術を提供する。【解決手段】粒子線治療装置１は、粒子線ビームＢを患者に向けて出射するビーム出射部３０と、ビーム出射部３０を覆う照射ポートカバー３１と、照射ポートカバー３１の患者Ｐに最も近接する部分に対応して設けられ、通過する粒子線ビームＢのブラッグピークを拡幅するエネルギー変調部４１とを備える。【選択図】図３
Bibliography:Application Number: JP20180221138