Generation and measurement of relativistic electron bunches characterized by a linearly ramped current profile

被引：45

作者：

England, R. J. ^{[1
]}

Rosenzweig, J. B. ^{[1
]}

Travish, G. ^{[1
]}

机构：

[1] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 100卷 / 21期

关键词：

Electrons;

D O I：

10.1103/PhysRevLett.100.214802

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the first successful attempt to generate ultrashort (1 - 10 ps) relativistic electron bunches characterized by a ramped longitudinal current profile that rises linearly from head to tail and then falls sharply to zero. Bunches with this type of longitudinal shape may be applied to plasma-based accelerator schemes as an optimized drive beam, and to free-electron lasers as a means of reducing asymmetry in microbunching due to slippage. The scheme used to generate the ramped bunches employs an anisochronous dogleg beam line with nonlinear correction elements to compress a beam having an initial positive time-energy chirp. The beam current profile is measured using a deflecting mode cavity, and a pseudoreconstruction of the beam's longitudinal phase space distribution is obtained by using this diagnostic with a residual horizontal dispersion after the dogleg.

引用

页数：4

共 9 条

[1]

Bane K. L., 1985, SLACPUB3662

[2]

Borland M., 2000, LS287 ARG NAT LAB AD

[3] Sextupole correction of the longitudinal transport of relativistic beams in dispersionless translating sections [J].

England, RJ ;

Rosenzweig, JB ;

Andonian, G ;

Musumeci, P ;

Travish, G ;

Yoder, R .

PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS, 2005, 8 (01) :33-46

[4]

ENGLAND RJ, 2006, P 2006 ADV ACC CONC, P595

[5] Observation of enhanced transformer ratio in collinear wakefield acceleration [J].

Jing, C. ;

Kanareykin, A. ;

Power, J. G. ;

Conde, M. ;

Yusof, Z. ;

Schoessow, P. ;

Gai, W. .

PHYSICAL REVIEW LETTERS, 2007, 98 (14)

[6] Efficient operating mode of the plasma wakefield accelerator [J].

Lotov, KV .

PHYSICS OF PLASMAS, 2005, 12 (05) :1-4

[7] ACCELERATION AND FOCUSING OF ELECTRONS IN 2-DIMENSIONAL NONLINEAR PLASMA WAKE FIELDS [J].

ROSENZWEIG, JB ;

BREIZMAN, B ;

KATSOULEAS, T ;

SU, JJ .

PHYSICAL REVIEW A, 1991, 44 (10) :R6189-R6192

[8] Seeded free-electron and inverse free-electron laser techniques for radiation amplification and electron microbunching in the terahertz range [J].

Sung, C. ;

Tochitsky, S. Ya. ;

Reiche, S. ;

Rosenzweig, J. B. ;

Pellegrini, C. ;

Joshi, C. .

PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS, 2006, 9 (12)

[9]

Young L.M., 1996, LAUR961835

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