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1篇 您的检索式：作者名="Sayed H.Rokni"

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		题名	作者	年代	出处	被引量
	1	Dose estimation and shielding calculation for X-ray hazard at high intensity laser facilities显示文摘An ionizing radiation hazard produced from the interaction between high intensity lasers and solid targets has been observed. Laser-plasma interactions create 'hot' electrons, which generate bremsstrahlung X-rays when they interact with ions in the target. However, up to now only limited studies have been conducted on this laser-induced radiological protection issue. In this paper, the physical process and characteristics of the interaction between high intensity lasers and solid targets are analyzed. The parameters of the radiation sources are discussed,including the energy conversion efficiency from laser to hot electrons, hot electron energy spectrum and electron temperature, and the bremsstrahlung X-ray energy spectrum produced by hot electrons. Based on this information,the X-ray dose generated with high-Z targets for laser intensities between 1014 and 1020W/cm2 is estimated. The shielding effects of common shielding items such as the glass view port, aluminum chamber wall and concrete wall are also studied using the FLUKA Monte Carlo code. This study provides a reference for the dose estimation and the shielding design of high intensity laser facilities.	邱睿张辉杨博 James C.Liu Sayed H.Rokni Michael B.Woods 李君利	2014	Chinese Physics C2014，38，12：	3

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