Absolute Sensitivity Calibration from 20 to 430 of a Grazing Incidence Spectrometer with a Multi-element Spectral Detector

J. L. Terry; H. L. Manning; E. S. Marmar

doi:10.1117/12.936564

12 August 1986 Absolute Sensitivity Calibration from 20 Å to 430 Å of a Grazing Incidence Spectrometer with a Multi-element Spectral Detector

J. L. Terry, H. L. Manning, E. S. Marmar

Author Affiliations +

Proceedings Volume 0689, X-Ray Calibration: Techniques, Sources, and Detectors; (1986) https://doi.org/10.1117/12.936564
Event: 30th Annual Technical Symposium, 1986, San Diego, United States

Abstract

Two methods which together allow sensitivity calibration from 20 Å to 430 Å are described in detail. The first method, useful up to 120 Å, uses a low power source to generate K∝ X-rays which are alternately viewed by an absolute detector (a proportional counter) and the spectrometer. The second method extends that calibration to 430 Å. It relies on the 2:1 brightness ratio of bright doublet lines from impurity ions which have a single outer shell electron and which are present in hot, magnetically confined plasmas. It requires that the absolute sensitivity of the spectrometer be known at one wavelength point, and in practice requires a multi-element spectral detector.

Citation Download Citation

J. L. Terry, H. L. Manning, and E. S. Marmar "Absolute Sensitivity Calibration from 20 Å to 430 Å of a Grazing Incidence Spectrometer with a Multi-element Spectral Detector", Proc. SPIE 0689, X-Ray Calibration: Techniques, Sources, and Detectors, (12 August 1986); https://doi.org/10.1117/12.936564

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