Corrugated pipe as a beam dechirper

被引：67

作者：

Bane, K. L. F. ^{[1
]}

Stupakov, G. ^{[1
]}

机构：

[1] Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94309 USA

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2012年 / 690卷

关键词：

Chirp control; Relativistic beam; Corrugated pipe; RADIATION;

D O I：

10.1016/j.nima.2012.07.001

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We have studied the use of a metallic pipe with small corrugations for the purpose of passively dechirping, through its wakefield, a short, intense electron bunch. The corrugated pipe is attractive for this purpose because its wake: (i) has near maximal possible amplitude for a given aperture and (ii) has a relatively large oscillation wavelength, even when the aperture is small. We showed how the corrugated structure can satisfy dechirping requirements encountered in the NGLS project at LBNL [1]. We found that a linear chirp of -40 MeV/mm can be induced by an NGLS-like beam, by having it pass through a corrugated, metallic pipe of radius 3 mm, length 8.2 m, and corrugation parameters full depth 450 mu m and period 1000 mu m. This structure is about 15 times as effective in the role of dechirper as an S-band accelerator structure used passively. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：106 / 110

页数：5

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