光学精密工程2017，Vol.25Issue(6)：1472-1476,5.DOI:10.3788/OPE.20172506.1472
椭圆石英弯晶的积分衍射效率标定
Calibration of integrated x-ray diffraction efficiency for elliptically curved quartz crystal
摘要
Abstract
Elliptically curved crystal spectrometers exhibit large width of spectral measurement,high resolution of energy spectrum and other features,thus can be fully used in the experimental research on "SG II" Inertial Confinement Fusion(ICF).Taking advantage of X-ray tube of the copper(Cu)target for the X-ray diffractometer,and seleting appropriate thickness of filter disc to restrain Cu-Kβ ray and bremsstrahlung,parameters of integral diffraction efficiency and full width at half maximum of rocking curve for elliptically curved quartz crystal which was made from silicon dioxide at the Cu-Kα energy point were measured.In addition,a verification test aiming at the changes of curvature radius for curved crystal with the two above mentioned important parameters were performed,thus estimating the resolution of energy spectrum.The result shows that the integral diffraction efficiency of the elliptically curved crystal and full width at half maximum of rocking curve are sensitive to the change of the bending radius of the crystal.Therefore,the mosaic effect of crystal can be strengthened by improving the tortuosity of the crystal.The result can provide data support for further optimization of multi-purpose elliptical curved crystal spectrometer and quantitative measurement of X-ray spectrum.关键词
激光惯性约束聚变/积分衍射效率/标定/椭圆弯晶/X射线谱仪Key words
Inertial Confinement Fusion(ICF)/integrated diffraction efficiency/calibration/elliptically curved crystal/X-ray diffractometer分类
数理科学引用本文复制引用
王瑞荣..椭圆石英弯晶的积分衍射效率标定[J].光学精密工程,2017,25(6):1472-1476,5.基金项目
国家自然科学基金资助项目(No.11575168) （No.11575168）
国家自然科学基金委/中国工程物理研究院NSAF联合基金资助项目(No.U1430112) （No.U1430112）
