Transverse envelope dynamics of a 28.5-GeV electron beam in a long plasma

被引：84

作者：

Clayton, CE

Blue, BE

Dodd, ES

Joshi, C

Marsh, KA

Mori, WB

Wang, S

Catravas, P

Chattopadhyay, S

Esarey, E

Leemans, WP

Assmann, R

Decker, FJ

Hogan, MJ

Iverson, R

Raimondi, P

Siemann, RH

Walz, D

Katsouleas, T

Lee, S

Muggli, P ^{[1
]}

机构：

[1] Univ So Calif, Los Angeles, CA 90089 USA

[2] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA

[3] Stanford Univ, Stanford Linear Accelerator Ctr, Stanford, CA 94309 USA

[4] Univ Calif Los Angeles, Los Angeles, CA 90095 USA

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 88卷 / 15期

关键词：

D O I：

10.1103/PhysRevLett.88.154801

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The transverse dynamics of a 28.5-GeV electron beam propagating in a 1.4 m long, (0-2) x 10(14) cm(-3) plasma are studied experimentally in the underdense or blowout regime. The transverse component of the wake field excited by the short electron bunch focuses the bunch, which experiences multiple betatron oscillations as the plasma density is increased. The spot-size variations are observed using optical transition radiation and Cherenkov radiation. In this regime, the behavior of the spot size as a function of the plasma density is well described by a simple beam-envelope model. Dynamic changes of the beam envelope are observed by time resolving the Cherenkov light.

引用

页码：4 / 154801

页数：4

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