Design and beam dynamics of SFEL high brightness injector

ZHAO Xiaofeng CHEN Ming LI Xingyue

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Design and beam dynamics of SFEL high brightness injector

更新时间：2021-04-09

- Design and beam dynamics of SFEL high brightness injector
- NUCLEAR TECHNIQUES Issue 3, (1998)
- 作者机构：
  
  1. 中国科学院上海原子核研究所
  2. 中国科学院高能物理研究所
  3. 中国科学院上海原子核研究所中国科学院高能物理研究所
- 作者简介：
- 基金信息：
- DOI：
  CLC： TL503.3
- Published：01 March 1998
- 稿件说明：
移动端阅览
[1]赵小风,陈明,李星月,罗应雄,吴文泰,王刚.SFEL高亮度注入器的设计和粒子动力学特性[J].核技术,1998(03):157-162.

ZHAO Xiaofeng CHEN Ming LI Xingyue. Design and beam dynamics of SFEL high brightness injector[J]. Nuclear techniques, 1998, (3).
[1]赵小风,陈明,李星月,罗应雄,吴文泰,王刚.SFEL高亮度注入器的设计和粒子动力学特性[J].核技术,1998(03):157-162. DOI：

ZHAO Xiaofeng CHEN Ming LI Xingyue. Design and beam dynamics of SFEL high brightness injector[J]. Nuclear techniques, 1998, (3). DOI：

摘要

使用国际通用程序ＥＴＰ．ＰＡＲＭＥＬＡ和自编程序ＰＬＳ－ＩＭ－６０等对高亮度注入器作了详细的优化设计和粒子动力学数值模拟。注入器出口的电子束品质的主要参数为：能量３．５ＭｅＶ。能散２％（６２％电子），微脉冲束团相宽－４ｐｓ（６２％电子）。在第一根加速管出口的电子束品质的主要参数为：能量３３ＭｅＶ，能散０．３％（６２％电子），微脉冲峰值电流－８０Ａ，束团相宽３ｐｓ（６２％电子），束归一化发射度２０－３０ｍｍ·ｍｒａｄ（６２％电子）。

Abstract

The SFEL high brightness injector consists of a ns- grid gun driven at 476MHz

a 476MHz subharmonic buncher and a 2856MHz travellingt wave buncher（TWB） with high field gradient. Electron beam leaving the injector is then injected into a constant gradient travelling-wave accelerating section（Accl

SLAC type）. By using programs ETP

PARMELA

PLS- IM-60 etc.

beam dynamics simulation was performed from the gun to. the end of Accl in order to find the optimized gun electrode geometry

sutbharmonic buncher gap voltage

bunching drift distance

TWB injecting phase

TWB structure parameters and axial magnetic field profile for predicting beam quality requested.

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Related Institution

Shanghai Institute of Nuclear Research, the Chinese Academy of Sciences

中国科学院上海原子核研究所

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