Measurement of lifetimes of thin carbon stripper foils produced by ion-beam sputtering

被引：1

作者：

Takeda, Yasuhiro ^{[1
]}

Irie, Yoshiro ^{[1
]}

Sugai, Isao ^{[1
]}

Takagi, Akira ^{[1
]}

Oyaizu, Michihiro ^{[1
]}

Kawakami, Hirokane ^{[1
]}

Hattori, Toshiyuki ^{[2
]}

Kawasaki, Katsunori ^{[2
]}

机构：

[1] High Energy Accelerator Res Org, Tsukuba, Ibaraki 3050801, Japan

[2] Tokyo Inst Technol, Meguro Ku, Tokyo 1528550, Japan

来源：

VACUUM | 2010年 / 84卷 / 12期

关键词：

Carbon foil; Thin foil; Stripper; Lifetime; Ion-beam sputtering; J-PARC; RCS;

D O I：

10.1016/j.vacuum.2010.01.050

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Thin carbon stripper foils used in high-intensity proton accelerators and heavy-ion accelerators must have long lifetimes. Thin carbon foils were fabricated by ion-beam sputtering using reactive and inert gas ions. The lifetime of the foils was measured using a KEK 650-key high-intensity DC H(-) (negative hydrogen ion) beam: changes in the foil thickness and surface deformations during irradiation were investigated. The lifetime of a typical stripper foil fabricated by heavy-ion-beam (Ar and Kr) sputtering was 60-70 times longer than that of the best commercially available foils. This paper reports a fabrication method for carbon stripper foils, along with an investigation of their lifetimes and changes in foil thickness during beam irradiation. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：1448 / 1451

页数：4

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