Spreading of a heavy ion beam with the dual-ring double scattering method

被引：3

作者：

Himukai, T. ^{[1
,2
]}

Furukawa, T. ^{[1
,2
]}

Takeshita, E. ^{[1
,2
]}

Inaniwa, T. ^{[1
,2
]}

Mizushima, K. ^{[1
,2
]}

Katagiri, K. ^{[1
,2
]}

Takada, Y. ^{[3
]}

机构：

[1] Natl Inst Radiol Sci, Dept Accelerator Phys, Inage Ku, Chiba 2638555, Japan

[2] Natl Inst Radiol Sci, Promot Carbon Therapy Sect, Inage Ku, Chiba 2638555, Japan

[3] Univ Tsukuba, Inst Appl Phys, Tsukuba, Ibaraki 3058573, Japan

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2011年 / 269卷 / 24期

关键词：

Beam spreading; Heavy ion; Dual ring; Double scattering; Flat radiation field; PROTON; IRRADIATION; SYSTEM;

D O I：

10.1016/j.nimb.2011.04.035

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A flat radiation field for heavy ion beams is used in research experiments and clinical treatments. When a flat field is required, a beam spreading system must be installed for a beam line; thus a simple and affordable method is desirable. To achieve the carbon ion beam spreading, we employed a dual-ring double scattering method (DDSM), which consists of an initial scattering foil and a dual-ring subsequent scatterer. The scatterers for the DDSM were designed and tested to verify the flatness of the radiation field of the carbon ion beam. We obtained 100 mm of the flat radiation field in the isocenter plane for the 2D radiation field, as expected. For the 3D radiation field, we obtained a field size of 80 mm. With a 60-min setup time, using the DDSM system, and by placing only two scatterers, we can form the fiat radiation field. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：2891 / 2894

页数：4

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