Affiliations: MOXTEK, Inc., 452 West 1260 North, Orem, UT 84057,
USA | Department of Physics and Astronomy, Brigham Young
University, Provo, UT 84602, USA
Note: [] MOXTEK, Inc., 452 West 1260 North, Orem, UT 84057, USA. Tel.: +1
801 225 0930; Fax: +1 801 221 1121; E-mail: areyes@moxtek.com
Note: [] Department of Physics and Astronomy, Brigham Young University,
N-261 ESC, Provo, UT 84602, USA. Tel.: +1 801 378 4361; Fax: +1 801 378 2265;
E-mail: larry_knight@byu.edu
Abstract: A breadboard setup constructed at MOXTEK, Inc. is capable of
capturing both x-ray fluorescence (XRF) and x-ray diffraction (XRD) information
simultaneously using a charge-coupled device (CCD) as the x-ray detector. Each
pixel on the CCD is used as a single event energy-dispersive detector. NASA is
funding the instrument's construction because of its capabilities and small
size. The CCD captures both the energy and the position of an x-ray photon.
With the energy and spatial information we are able to construct fluorescence
spectra as well as diffraction patterns. X-ray events that deposit their energy
in one pixel (single events) are kept, and x-ray events that split into two or
more pixels (split events) are discarded from the data set. This paper focuses
on how the CCD captures x-ray information and how the information is sorted by
means of algorithms to provide both XRF and XRD information.
