Paper
25 January 2002 Using a charge-coupled device (CCD) to simultaneously gather x-ray fluorescence (XRF) and x-ray diffraction (XRD) information
S. Cornaby, T. D. Grow, Arturo Reyes-Mena, Paul W. Moody, A. Stradling, T. Hughes, Larry V. Knight
Author Affiliations +
Abstract
A breadboard setup constructed at MOXTEK, Inc., is capable of capturing both x-ray diffraction (XRD) and x-ray fluorescence (XRF) information simultaneously using a charge-coupled device (CCD) as the x-ray detector. This preliminary setup will lead to a prototype simultaneous XRD/XRF instrument. NASA is funding the project because it could be used for future Mars missions for analysis of rocks. The instrument uses a CCD to capture both the energy and the position of an incoming x-ray. This is possible because each pixel acts as a spatially addressable energy- dispersive detector. A powdered sample of material is placed in front of the CCD, which in turn is bombarded by a collimated x-ray beam. The instrument's critical features, the x-ray source, collimation optics and x-ray transparent windows need to be optimized in the size and power to allow the instrument to be portable. In this paper the instrument's design parameters as well as the properties of both the CCD as x-ray detector and the low-power consumption tube are investigated.
© (2002) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
S. Cornaby, T. D. Grow, Arturo Reyes-Mena, Paul W. Moody, A. Stradling, T. Hughes, and Larry V. Knight "Using a charge-coupled device (CCD) to simultaneously gather x-ray fluorescence (XRF) and x-ray diffraction (XRD) information", Proc. SPIE 4497, X-Ray and Gamma-Ray Instrumentation for Astronomy XII, (25 January 2002); https://doi.org/10.1117/12.454227
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KEYWORDS
Charge-coupled devices

X-rays

X-ray detectors

Diffraction

X-ray diffraction

Sensors

X-ray fluorescence spectroscopy

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