摘要
在神光(10^(12)W)装置上,用1.06μm激光加热片状锗靶,用袖珍式掠入射光栅谱仪测量了类氖锗离子的3S—3P激光跃迁线的增益系数和X射线激光的传输特性,得到的结果为:波长为19.638,23.224,23.627,24.743和28.643nm的5条激光跃迁线的增益系数分别为3.06,3.99,3.72,2.36和4.59cm^(-1);当等离子体长度为18mm时,相应的X射线激光的发散角约为12mrad,发射X射线激光的等离子体厚度约为200μm,X射线激光峰值强度方向偏离等离子体轴线约为5.7mrad。
The X-ray laser investigations in Ne-Like Ge were carried out using Shengguang (1012W) laser facility. An 1 m packaged grazing incidence grating spectrograph was positioned to view the plasma axially. The gain coefficients and the beam patterns were obtained from lasing line spectra. The measured gain coefficients of 19.638, 23.224, 23.627, 24.743 and 28.643 nm lasing lines were 3.06, 3.99, 3.72, 2.36 and 4.59 cm-1 respectively, the diverence angles of X-ray laser beams were about 12 mrad, the angles of X-ray laser beams from the axis of the line focus plasma were about 5.7 mrad.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
1990年第11期1751-1757,共7页
Acta Physica Sinica
