Resonant Emittance Mixing of Flat Beams in Plasma Accelerators

被引：0

作者：

Diederichs, S. ^{[1
,2
]}

Benedetti, C. ^{[3
]}

Pousa, A. Ferran ^{[1
]}

Sinn, A. ^{[1
]}

Osterhoff, J. ^{[1
,3
]}

Schroeder, C. B. ^{[3
,4
]}

Thevenet, M. ^{[1
]}

机构：

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

[2] CERN, Esplanade Particules 1, CH-1211 Geneva, Switzerland

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

[4] Univ Calif Berkeley, Dept Nucl Engn, Berkeley, CA 94720 USA

来源：

PHYSICAL REVIEW LETTERS | 2024年 / 133卷 / 26期

关键词：

ELECTRON-BEAM;

D O I：

10.1103/PhysRevLett.133.265003

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Linear colliders rely on high-quality flat beams to achieve the desired event rate while avoiding potentially deleterious beamstrahlung effects. Here, we show that flat beams in plasma accelerators can be subject to quality degradation due to emittance mixing. This effect occurs when the beam particles' betatron oscillations in a nonlinearly coupled wakefield become resonant in the horizontal and vertical planes. Emittance mixing can lead to a substantial decrease of the luminosity, the main quantity determining the event rate. In some cases, the use of laser drivers or flat particle beam drivers may decrease the fraction of resonant particles and, hence, mitigate emittance deterioration.

引用

页数：6

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