An inexpensive, hard x-ray imaging spectrometer for use in x-ray astronomy and atomic physics

Details An inexpensive, hard x-ray imaging spectrometer for use in x-ray astronomy and atomic physics An inexpensive, hard x-ray imaging spectrometer for use in x-ray astronomy and atomic physics

Mar 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989nimpa.276..340h&link_type=abstract

Nuclear Instruments and Methods in Physics Research Section A, Volume 276, Issue 1-2, p. 340-346.

Physics

14

Scientific paper

We have evaluated a simple X-ray imaging spectrometer (XRIS) useful in the 20-400 keV region. The XRIS consists of an alkali halide scintillator crystal optically coupled to a commercial imaging, photomultiplier tube. The standard performance criteria (spatial sensitivity, pulse height uniformity, spatial and energy resolution) have been studied as a function of X-ray energy and crystal thickness. In particular, spatial resolutions of better than 2 mm (FWHM) have been obtained at 88 keV with standard scintillator crystal energy resolution and near 100% detection efficiency. The XRIS represents an inexpensive, easy to use alternative to more sophisticated imaging systems. We are currently planning to use it in both atomic physics and x-ray astronomy applications.

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