国家自然科学基金(11375199)

作品数：5被引量：3H指数：1
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Parameter design considerations for an oscillator IR-FEL被引量：1
《Chinese Physics C》2017年第1期187-194,共8页贾启卡 
Supported by National Nature Science Foundation of China(21327901,11375199)
An infrared oscillator FEL user facility will be built at the National Synchrotron Radiation Laboratory at in Hefei, China. In this paper, the parameter design of the oscillator FEL is discussed, and some original rel...
关键词：free electron laser OSCILLATOR parameters design 
Simulation study on the emittance compensation of off-axis emitted beam in RF photoinjector
《Chinese Physics C》2016年第11期184-190,共7页黄瑞萱 Chad Mitchell 贾启卡 Christos Papadopoulos Fernando Sannibale 
Supported by National Nature Science Foundation of China(11375199);Chinese Scholarship Council
To make full use of the photocathode material and improve its quantum efficiency lifetime, it can be necessary to operate the laser away from the cathode center in photoinjectors. In RF guns, the off-axis emitted beam...
关键词：PHOTOINJECTOR off-axis emission genetic algorithm ASTRA IMPACT-T RF effect emittance compen-sation 
Analytical formula of free electron laser exponential gain for a non-resonant electron beam
《Chinese Physics C》2015年第4期105-110,共6页贾启卡 
Supported by Major State Basic Research Development Program(2011CB808301);National Nature Science Foundation of China(11375199)
The free electron laser （FEL） gain formulas for a non-resonant case are studied, and some new rigorous analytical formulas are given explicitly. For the mono-energetic and non-resonant electron beam, the exact expre...
关键词：free electron laser exponential gain non-resonant 
An analysis of undulator optimization in self-seeding free electron lasers被引量：1
《Chinese Physics C》2014年第8期94-96,共3页贾启卡 
Supported by Major State Basic Research Development Program(2011CB808301);National Natural Science Foundation of China(11375199)
A simple analysis is given for the optimum length of undulator in a self-seeding free electron laser （FEL）. The obtained relations show the correlation between the undulator length and the system parameters. The pow...
关键词：free electron laser SELF-SEEDING UNDULATOR 
Velocity bunching in travelling wave accelerator with low acceleration gradient被引量：1
《Chinese Physics C》2014年第5期98-102,共5页黄瑞萱 何志刚 李伟伟 贾启卡 
Supported by National Natural Sciences Foundation of China(11205152,11375199);Fundamental Research Funds for the Central Universities(WK2310000042);Major State Basic Research Development Program of China(2011CB808301)
We present the analytical and simulated results of our study of the influence of the acceleration gradient in the velocity bunching process, which is a bunch compression scheme that uses a travelling wave accelerating...
关键词：travelling wave accelerating structure velocity bunching acceleration gradient emittance compensation 
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