K-Shell Spectra from CH Foam Tamped Ti Layers Irradiated with Nanosecond Laser Pulses  

作　　者：ZHAO Yang ZHU Tuo WEI Min-Xi XIONG Gang SONG Tian-Ming HU Zhi-Min HUANG Cheng-Wu SHANG Wan-Li YANG Guo-Hong ZHANG Ji-Yan YANG Jia-Min 赵阳;朱托;韦敏习;熊刚;宋天明;胡智民;黄成武;尚万里;杨国洪;张继彦;杨家敏(Research Center of Laser Fusion,China Academy of Engineering Physics,Mianyang 621900)

机构地区：[1]Research Center of Laser Fusion,China Academy of Engineering Physics,Mianyang 621900

出　　处：《Chinese Physics Letters》2012年第8期184-187,共4页中国物理快报（英文版）

基　　金：Supported by the Foundation of China Academy of Engineering Physics under Grant No 2011A0102005;the Foundation of Science and Technology on Plasma Physics Laboratory under Grant No 9140C680203110C6804.

摘　　要：Hot dense titanium plasma was produced by irradiating a CH foam coated titanium layer with nanosecond laser pulses.The time-integrated emission spectra of He-like titanium were measured by using an absolutely calibrated flat crystal spectrometer.The synthetic spectra obtained by the steady collisional-radiative(CR)equilibrium model associated with the hydrodynamic simulations were compared with the experimental spectra.The results show that the electron density increases up to 5×10^(21) cm^(-3) with CH foam of density 40 mg/cc.This work indicates that an overlay of CH foam on a solid target is beneficial to create an optimum condition for K-shell emissions from a high density plasma region.

关 键 词：SPECTRA TITANIUM absolutely 

分 类 号：TN2[电子电信—物理电子学]