X-ray spectral diagnosis for laser plasma

被引：1

作者：

Liu L.-F. ^{[1
]}

Xiao S.-L. ^{[2
]}

Qian J.-Y. ^{[2
]}

机构：

[1] School of Physics and Electronics Science, Shanxi Datong University, Datong

[2] Key Laboratory of Optoelectronic Technology and System, Ministry of Education, Chongqing University, Chongqing

来源：

Guangxue Jingmi Gongcheng/Optics and Precision Engineering | 2017年 / 25卷 / 05期

关键词：

Spectral resolution; Spectroscopy; Spherically bent crystal; X-ray imaging;

D O I：

10.3788/OPE.20172505.1192

中图分类号：

学科分类号：

摘要：

In order to diagnose the inner distribution and movement process of pellet implosion target plasma for laser-driven Inertial Confinement Fusion (ICF) facility, an energy spectrum imaging system based on spherically bent crystal was built. The core element of the system was a spherically bent quartz crystal (1011) with bending radius of 200 mm, of which the lattice structure enabled reflection and the bent surface made focus. The energy spectrum imaging system was performed to first conduct X-ray energy spectrum imaging on SG Ⅲ prototype laser equipment at the Chinese Academy of Engineering Physics (CAEP). Clear X-ray energy spectrum of the high Z element Au plasma was obtained on IP imaging plate. The analysis on the energy spectrum information shows that the energy resolution ratio gained from spherically bent quartz crystal is approximately 1 380, and the error is 3.9% compared with the theory value of energy spectrum resolution model. The result shows that spherically bent quartz crystal has good energy spectrum resolution capacity. © 2017, Science Press. All right reserved.

引用

页码：1192 / 1196

页数：4

共 14 条

[1] Glenzer S.H., MacGowan B.J., Meezan N.B., Et al., Demonstration of ignition radiation temperatures in indirect-drive inertial confinement fusion hohlraums, Physical Review Letter, 106, 8, (2011)
[2] Fujioka S., Fujiwara T., Tanabe M., Et al., Monochromatic X-ray radiography for areal-density measurement of inertial fusion energy fuel in fast ignition experiment, Review of Scientific Instruments, 81, 10, (2010)
[3] Bennett G.R., Sinars D.B., Wenger D.F., Et al., High-brightness, high-spatial-resolution, 6.151 keV X-ray imaging of inertial confinement fusion capsule implosion and complex hydrodynamics experiments on Sandia's Z accelerator(invited), Review of Scientific Instruments, 77, 10, (2006)
[4] Alkhimova M.A., Pikuz S.A., Skoblev I.Y., Et al., Determination of the reflectivity curve of a spherically bent mica crystal used to diagnose X-ray radiation of relativistic laser plasma, Bulletin of the Lebedev Physics Institute, 43, 10, pp. 291-294, (2016)
[5] Bitter M., Hill K.W., Stratton B., Et al., Spatially resolved spectra from a new X-ray imaging crystal spectrometer for measurements of ion and electron temperature profiles (invited), Review of Scientific Instruments, 75, 10, pp. 3660-3665, (2004)
[6] Honkanen A.P., Verbeni R., Simonelli L., Et al., Study on the reflectivity properties of spherically bent analyser crystals, Corrigendum J. Synchrotron Rad, 24, pp. 545-546, (2017)
[7] Sun J.W., High Temperature Plasma X-ray Spectroscopy, (2003)
[8] W X.Y., X S.L., L J., Et al., Simulation and experimental research of X-ray toroidally bent crystal imaging with laser-produced plasma, Laser Physics, 26, 4, (2016)
[9] Yaakobi B., Craxton R.S., Epstein R., Et al., Areal-density measurements of laser targets using absorption lines spectrosc, Journal of Quantitative Spectroscopy and Radiative Transfer, 58, 1, pp. 75-83, (1997)
[10] Koch J.A., Landen O.L., Hammel B.A., Et al., Recent progress in high-energy, high-resolution X-ray imaging techniques for application to the National Ignition Facility, Review of Scientific Instruments, 70, 1, pp. 525-530, (1999)

← 1 2 →