Direct-method phasing of anomalous diffraction from proteins

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	Direct-method phasing of anomalous diffraction from proteins
	Gu, YX ; Jiang, F ; Sha, BD ; Fan, HF
刊名	ZEITSCHRIFT FUR KRISTALLOGRAPHIE
	2002
卷号	217 期号:12 页码:710
关键词	COMBINING DIRECT METHODS SCATTERING DATA ISOMORPHOUS REPLACEMENT
ISSN号	0044-2968
通讯作者	Fan, HF: Chinese Acad Sci, Inst Phys, POB 603, Beijing 100080, Peoples R China.
中文摘要	The transient nature of x-ray laser is studied. For a drive pulse even as short as 500fs, the x-ray laser gain still shows a quasi-steady state behavior. A real transient nature can only be seen when the x-ray laser is driven by a laser pulse with a duration as short as tens of femtoseconds. A femtosecond laser pulse driven collisional Ne-like Ti x-ray laser at 32.6 nm is numerically investigated. By using the optimized drive pulse configuration, a gain of 40 cm(-1) can be generated from a 5 mm x 50 mum line focus using about 1 J pump energy. Effects of delay time on transient collisional excitation nickle-like x-ray lasers are investigated analytically using a simple model. The calculations show that the longer delay time can greatly relax the density gradient. Similarly, increasing the intensity of the short pulse or extending the duration can also raise the electron temperature, resulting in higher gain coefficient. Our results indicate that extending the short pulse duration is more efficient than that of increasing the intensity.
收录类别	SCI
语种	英语
公开日期	2013-09-17
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/36104]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Gu, YX,Jiang, F,Sha, BD,et al. Direct-method phasing of anomalous diffraction from proteins[J]. ZEITSCHRIFT FUR KRISTALLOGRAPHIE,2002,217(12):710.
APA	Gu, YX,Jiang, F,Sha, BD,&Fan, HF.(2002).Direct-method phasing of anomalous diffraction from proteins.ZEITSCHRIFT FUR KRISTALLOGRAPHIE,217(12),710.
MLA	Gu, YX,et al."Direct-method phasing of anomalous diffraction from proteins".ZEITSCHRIFT FUR KRISTALLOGRAPHIE 217.12(2002):710.