SPACE-CHARGE-INDUCE EMITTANCE COMPENSATION IN HIGH-BRIGHTNESS PHOTOINJECTORS

被引:0
|
作者
CARLSTEN, BE
机构
来源
PARTICLE ACCELERATORS | 1995年 / 49卷 / 01期
关键词
BEAM TRANSPORT; ELECTRON BEAM DEVICES; INJECTORS; PARTICLE DYNAMICS;
D O I
暂无
中图分类号
TL [原子能技术]; O571 [原子核物理学];
学科分类号
0827 ; 082701 ;
摘要
We have developed an emittance compensation scheme for the space-charge-induced emittance growth in high-brightness electron beams. This technique has been incorporated in 1.3 GHz photoinjector experiments at Los Alamos National Laboratory by introducing solenoidal focusing near the photocathode. Other laboratories are using or contemplating using the scheme for photoinjectors ranging from 108 MHz to 2.856 GHz. In our experiments, this scheme has consistently reduced the normalized rms emittance by up to an order of magnitude over what it would be without compensation. In this paper, we explain how this scheme works and discuss the physics leading to the residual emittance after compensation. We additionally present a numerical model of the technique which leads to universal scaling curves for predicting the residual emittance as a function of beam current, accelerating gradient and other conditions, and show that experimental data from the Los Alamos Advanced Prototype EXperiment (APEX) free-electron laser facility is consistent with these results, These scaling curves can be used to determine optimum photoinjector conditions for desired electron bunch parameters.
引用
收藏
页码:27 / 65
页数:39
相关论文
共 50 条
  • [31] High-brightness all-polymer stretchable LED with charge-trapping dilution
    Zhitao Zhang
    Weichen Wang
    Yuanwen Jiang
    Yi-Xuan Wang
    Yilei Wu
    Jian-Cheng Lai
    Simiao Niu
    Chengyi Xu
    Chien-Chung Shih
    Cheng Wang
    Hongping Yan
    Luke Galuska
    Nathaniel Prine
    Hung-Chin Wu
    Donglai Zhong
    Gan Chen
    Naoji Matsuhisa
    Yu Zheng
    Zhiao Yu
    Yang Wang
    Reinhold Dauskardt
    Xiaodan Gu
    Jeffrey B.-H. Tok
    Zhenan Bao
    Nature, 2022, 603 : 624 - 630
  • [32] High-brightness all-polymer stretchable LED with charge-trapping dilution
    Zhang, Zhitao
    Wang, Weichen
    Jiang, Yuanwen
    Wang, Yi-Xuan
    Wu, Yilei
    Lai, Jian-Cheng
    Niu, Simiao
    Xu, Chengyi
    Shih, Chien-Chung
    Wang, Cheng
    Yan, Hongping
    Galuska, Luke
    Prine, Nathaniel
    Wu, Hung-Chin
    Zhong, Donglai
    Chen, Gan
    Matsuhisa, Naoji
    Zheng, Yu
    Yu, Zhiao
    Wang, Yang
    Dauskardt, Reinhold
    Gu, Xiaodan
    Tok, Jeffrey B-H
    Bao, Zhenan
    NATURE, 2022, 603 (7902) : 624 - +
  • [33] Transverse emittance-preserving arc compressor for high-brightness electron beam-based light sources and colliders
    Di Mitri, S.
    Cornacchia, M.
    EPL, 2015, 109 (06)
  • [34] Self-compensation of thermal lensing in optics for high-brightness solid-state lasers
    Piehler, Stefan
    Thiel, Christiane
    Voss, Andreas
    Ahmed, Marwan Abdou
    Graf, Thomas
    HIGH POWER LASER MATERIALS PROCESSING: LASERS, BEAM DELIVERY, DIAGNOSTICS, AND APPLICATIONS, 2012, 8239
  • [35] Emittance growth due to space charge compensation and beam intensity instabilities in negative ion beams
    Valerio-Lizarraga, C. A.
    PHYSICAL REVIEW ACCELERATORS AND BEAMS, 2018, 21 (03):
  • [36] A TRANSVERSE PHASE-SPACE MEASUREMENT TECHNIQUE FOR HIGH-BRIGHTNESS, H- BEAMS
    CONNOLLY, RC
    JOHNSON, KF
    SANDOVAL, DP
    YUAN, V
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1992, 312 (03): : 415 - 419
  • [37] A high-brightness source of polarization-entangled photons optimized for applications in free space
    Steinlechner, Fabian
    Trojek, Pavel
    Jofre, Marc
    Weier, Henning
    Perez, Daniel
    Jennewein, Thomas
    Ursin, Rupert
    Rarity, John
    Mitchell, Morgan W.
    Torres, Juan P.
    Weinfurter, Harald
    Pruneri, Valerio
    OPTICS EXPRESS, 2012, 20 (09):
  • [38] Untangling the contributions of image charge and laser profile for optimal photoemission of high-brightness electron beams
    Portman, J.
    Zhang, H.
    Makino, K.
    Ruan, C. Y.
    Berz, M.
    Duxbury, P. M.
    JOURNAL OF APPLIED PHYSICS, 2014, 116 (17)
  • [39] Precision drilling with a high-brightness unstable Nd:YAG laser resonator using a new birefringence compensation scheme
    Bostanjoglo, G
    Pachale, T
    Beck, T
    Weber, H
    LASER MATERIALS PROCESSING CONFERENCE, PTS 1 & 2: ICALEO '97, 1997, : B100 - B108
  • [40] Experimental Evidence of Space Charge Driven Emittance Coupling in High Intensity Linear Accelerators
    Groening, L.
    Hofmann, I.
    Barth, W.
    Bayer, W.
    Clemente, G.
    Dahl, L.
    Forck, P.
    Gerhard, P.
    Kaiser, M. S.
    Maier, M.
    Mickat, S.
    Milosic, T.
    Yaramyshev, S.
    Uriot, D.
    PHYSICAL REVIEW LETTERS, 2009, 103 (22)