Observation of the Self-Modulation Instability via Time-Resolved Measurements

被引：11

作者：

Gross, M. ^{[1
]}

Engel, J. ^{[1
]}

Good, J. ^{[1
]}

Huck, H. ^{[1
]}

Isaev, I. ^{[1
]}

Koss, G. ^{[1
]}

Krasilnikov, M. ^{[1
]}

Lishilin, O. ^{[1
]}

Loisch, G. ^{[1
]}

Renier, Y. ^{[1
]}

Rublack, T. ^{[1
]}

Stephan, F. ^{[1
]}

Brinkmann, R. ^{[2
]}

de la Ossa, A. Martinez ^{[2
,3
]}

Osterhoff, J. ^{[2
]}

Malyutin, D. ^{[4
]}

Richter, D. ^{[4
]}

Mehrling, T. ^{[3
,5
]}

Khojoyan, M. ^{[6
,7
]}

Schroeder, C. B. ^{[8
]}

Gruener, F. ^{[3
,9
]}

机构：

[1] Deutsch Elektronen Synchrotron DESY, Platanenallee 6, D-15738 Zeuthen, Germany

[2] Deutsch Elektronen Synchrotron DESY, Notkestr 85, D-22607 Hamburg, Germany

[3] Univ Hamburg, Luruper Chaussee 149, D-22761 Hamburg, Germany

[4] Helmholtz Zentrum Berlin Mat & Energie, Albert Einstein Str 15, D-12489 Berlin, Germany

[5] Inst Super Tecn, Ave Rovisco Pais 1, P-1049001 Lisbon, Portugal

[6] CNRS, LLR, Paris, France

[7] Ecole Polytech, Palaiseau UMR7638, Palaiseau, France

[8] Lawrence Berkeley Natl Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA

[9] Ctr Free Electron Laser Sci, Notkestr 85, D-22607 Hamburg, Germany

来源：

PHYSICAL REVIEW LETTERS | 2018年 / 120卷 / 14期

关键词：

PLASMA-WAKEFIELD ACCELERATION; PITZ; BEAMS;

D O I：

10.1103/PhysRevLett.120.144802

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Self-modulation of an electron beam in a plasma has been observed. The propagation of a long (several plasma wavelengths) electron bunch in an overdense plasma resulted in the production of multiple bunches via the self-modulation instability. Using a combination of a radio-frequency deflector and a dipole spectrometer, the time and energy structure of the self-modulated beam was measured. The longitudinal phase space measurement showed the modulation of a long electron bunch into three bunches with an approximately 200 keV/c amplitude momentum modulation. Demonstrating this effect is a breakthrough for proton-driven plasma accelerator schemes aiming to utilize the same physical effect.

引用

页数：5

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