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Bent-crystal Laue spectrograph for measuring x-ray spectra (15<E<100 keV).
- Source :
-
Review of Scientific Instruments . Oct2006, Vol. 77 Issue 10, p10F314. 4p. 1 Color Photograph, 1 Diagram, 2 Graphs. - Publication Year :
- 2006
-
Abstract
- A bent-crystal Laue {or Cauchois [J. Phys. Radium 3, 320 (1932)] geometry} spectrograph is a good compromise between sensitivity and spectral resolution for measuring x-ray spectra (15<E<100 keV) from large area x-ray sources because source-size spectral broadening is mitigated. We have designed, built, and tested such a spectrograph for measuring the spectra from electron-beam x-ray sources with diameters as large as 30 cm. The same spectrograph geometry has also been used to diagnose (with higher spectral resolution) smaller sources, such as x-ray tubes for mammography and laser-driven inertial fusion targets. We review our spectrograph design and describe the performance of different components. We have compared the reflectivity and spectral resolution of LiF, and Ge diffracting crystals. We have also measured the differences in sensitivity and spectral resolution using different x-ray to light converters (plastic scintillator, CsI, and Gd2O2S) fiber optically coupled to an intensified charge-coupled device camera. We have also coupled scintillating fibers to photomultiplier tubes to obtain temporal records for discrete energy channels. [ABSTRACT FROM AUTHOR]
- Subjects :
- *SPECTROGRAPHS
*X-ray spectroscopy
*SPECTRUM analysis
*X-rays
*ELECTROMAGNETIC waves
Subjects
Details
- Language :
- English
- ISSN :
- 00346748
- Volume :
- 77
- Issue :
- 10
- Database :
- Academic Search Index
- Journal :
- Review of Scientific Instruments
- Publication Type :
- Academic Journal
- Accession number :
- 23073262
- Full Text :
- https://doi.org/10.1063/1.2229265