用于低X射线能量的成像晶体光谱仪的校准

Calibration of an imaging crystal spectrometer for low x-ray energies.

作者信息

Lee S G, Bak J G, Bitter M

机构信息

National Fusion Research Institute, Yusung, Taejeon 305-333, Korea.

出版信息

Rev Sci Instrum. 2008 Jan;79(1):013501. doi: 10.1063/1.2829888.

DOI:10.1063/1.2829888

PMID:18248028

Abstract

An x-ray imaging crystal spectrometer was designed for the Hanbit magnetic mirror device to observe spectra of heliumlike neon at 13.4474 A. The spectrometer consists of a spherically bent mica crystal and an x-ray sensitive vacuum charge coupled device camera. This spectrometer can provide spatially resolved spectra, making it possible to obtain profiles of the ion charge state distribution from line ratios and profiles of the plasma rotation velocity from Doppler shift measurements. The paper describes measurements of spectral resolution of this instrument for low x-ray energies.

摘要

为韩国科学技术院磁镜装置设计了一种X射线成像晶体光谱仪，用于观测类氦氖在13.4474埃处的光谱。该光谱仪由一个球面弯曲的云母晶体和一台对X射线敏感的真空电荷耦合器件相机组成。这种光谱仪能够提供空间分辨光谱，从而有可能从谱线比值获得离子电荷态分布的轮廓，并从多普勒频移测量获得等离子体旋转速度的轮廓。本文描述了该仪器在低X射线能量下的光谱分辨率测量。