Design of a post linac for an energy upgrade of a heavy-ion injector

被引：1
|
作者：
Iwata, Y. [1 ]
Noda, K. [1 ]
机构：
[1] Natl Inst Radiol Sci, Dept Accelerator & Med Phys, Inage Ku, Chiba 2638555, Japan
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2014年 / 331卷
关键词：
Heavy ion linac; RFQ; Interdigital H-mode (IH) structure; Alternating-Phase-Focusing (APF); Medical accelerators; Heavy ion therapy; MEDICAL ACCELERATORS; FACILITY; THERAPY;
D O I：
10.1016/j.nimb.2013.09.041
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
A post linac is being designed for an energy upgrade of a heavy-ion injector. This post linac is to be installed downstream of the formerly developed compact injector, consisting of an Electron-Cyclotron-Resonance Ion-Source (ECRIS), the Radio-Frequency-Quadrupole (RFQ) linac and the Alternating-Phase-Focused Interdigital H-mode Drift-Tube-Linac (APF IH-DTL). It is aimed to increase the output energy of a heavy-ion injector. Carbon ions are initially accelerated with the compact injector to 4 MeV/u, and further accelerated with the post linac up to 8 MeV/u. The three linacs have the same operating frequency of 200 MHz. For beam focusing of the post linac, the APF method is used. Iterative simulations of beam dynamics were performed to determine the optimum array of synchronous phases in each gap. The results of the simulations provided that the calculated efficiency of beam transmission through the post linac is as high as 98.4%. The total length of this APF post linac is estimated to be approximately 3 m. A design overview of the injector system including the post linac is presented. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：10 / 14
页数：5
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