晶体摆动场的辐射衰减与能量增益

张 梅; 罗晓华; 罗诗裕; 邵明珠

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晶体摆动场的辐射衰减与能量增益

论文 | 更新时间：2020-08-12

- 晶体摆动场的辐射衰减与能量增益
- The Radiation Attenuation and Energy Gain for Crystallie Undulator Field
- 发光学报 2010年31卷第3期页码：454-458
- 作者机构：
  
  1. 东莞理工学院电子工程学院,广东东莞,523106
  2. 重庆大学电气工程学院重庆,400044
  3. 重庆交通大学图书馆重庆,400074
- 作者简介：
- 基金信息：
- DOI：
  中图分类号： O431.1;TN241
- 纸质出版日期：2010-6-30，
  
  网络出版日期：2010-6-30，
  
  收稿日期：2009-1-25，
  
  修回日期：1900-1-2，
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张梅, 罗晓华, 罗诗裕, 等. 晶体摆动场的辐射衰减与能量增益[J]. 发光学报, 2010,31(3):454-458.

ZHANG Mei, LUO Xiao-hua, LUO Shi-yu, et al. The Radiation Attenuation and Energy Gain for Crystallie Undulator Field[J]. Chinese Journal of Luminescence, 2010,31(3):454-458.
张梅, 罗晓华, 罗诗裕, 等. 晶体摆动场的辐射衰减与能量增益[J]. 发光学报, 2010,31(3):454-458. DOI：

ZHANG Mei, LUO Xiao-hua, LUO Shi-yu, et al. The Radiation Attenuation and Energy Gain for Crystallie Undulator Field[J]. Chinese Journal of Luminescence, 2010,31(3):454-458. DOI：

摘要

由于晶体弯曲、电子多重散射和晶格热振动引起的粒子退道

辐射同原子相互作用引起的电离损失

以及系统非线性引起的全局分叉与混沌行为等

晶体摆动场辐射面临的问题比自由电子激光要复杂得多。首先

引入晶体摆动场自发辐射谱分布

并在简谐近似下讨论了运动方程、系统增益和能量衰减。结果表明:一般情况下辐射谱只有少数几条谱线

而在简谐近似下

谱线只有一条。其次

指出了辐射能量比较高时

衰减是主要的

选择的晶体长度必须小于衰减长度

且可选择正电子或质子作炮弹;当辐射能量比较低时

退道是主要的

选择的晶体长度必须小于退道长度

且可选择重离子作炮弹。

Abstract

The problem included in the crystalline undulator field radiation is complex and more the free electron laser because of the dechanneling effect by the crystal bend

the electron multi-scattering and the thermal oscillation of the lattice

the ionization loss by an interaction between the radiation with an atom

the global bifurcation and the chaotic behaviours by the nonlinearity of the system

etc.

Firstly

the introducing the spectral distribution of a spontaneous radiation for the crystalline undulator field based on the classical field theory

the particle motion equation

the gain factor and the radiation attenuation were discussed in a harmoric approximation. The results showed that there is few radiation lines in the general case; and there is only one line in a harmoric approximation. Secondly

it was pointed out that the radiation attenuation is major if energy is higher

then the crystal length must be selected smaller than the dechanneling length

and one may selects a positron or a proton as projectile; in addition

the dechanneling effect is major if energy is lower

then the crystal length must be selected smaller than the attenuation length

and one may select a heavy ion as projectile.

关键词

摆动场辐射谱分布增益系数辐射衰减

Keywords

crystalline undulator radiationspectral distributiongain factorradiation attenuation

references

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. Shao Mingzhu, Luo Shiyu. The tan2x potential and the eigenvalue and eigenfunction for planar channeling radiation [J]. Acta Phys. Sin. (物理学报), 2005, 54 (9):4092-4096 (in Chinese).

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