摘要
利用快速Fourier变换(FFT)算法和反卷积原理对Dante谱议测量波形进行了回推获得了激光等离子体源区低能X射线辐射时间波形。解谱方法采用了W.N.Mcelroy等人提出的SANDⅡ解谱方法并与文献[6]中介绍的限幅迭代和周期性光滑技术相配合计算出了能谱时间关系的16分区结果,给出了1989年6月LF-12强激光装置实验的双束靶、漏靶诊断口,入射口的X射线时间谱以及辐射温度时间关系T_R(i)。
Dante-recorded temporal waveforms have been unfolded using fast fourier transformation (FFT) and the inverted convolution theorem of Fourier analysis. The conversion of the signals to time-dependent soft x-ray spectra is accomplished on the IBM-PC/XT-286 microcomputer system with the code DTSP including SAND n reported by W. N. Mcelory et al . . An amplitude-limited iteractive and periodic smoothing technique has been developed in the code DTSP. Time-resolved soft x-ray spectra with sixteen time-cell, and time-dependent radiation , [T_R(t)] , have been obtained for hohlraum targets irradiated with laser beams (λ= l.06μm) on LF-12 in 1989.
出处
《强激光与粒子束》
EI
CAS
CSCD
1991年第4期483-492,共10页
High Power Laser and Particle Beams
基金
中国工程物理研究院自然科学基金
关键词
激光
等离子体
X射线
时间谱
波形
waveform unfolds, time-resolved x-ray spectra, time-dependent radiation tem-perature.
