The Sanderson test spectraHome Page | Test Spectra Page
|These spectra were created by Colin Sanderson, of the US Department of Energy, in 1990 as ASCII text files. These files and spectrum files created from then are available via the links on the right. To save the files directly, Right-Click the link and select 'Save Target As...'.|
These test spectra, used for the re-evaluation a number of spectrum analysis programs examined some years before (See References below.) They were prepared using a spectrum of a mixed gamma-ray standard filter paper measured
on a 1.96 keV resolution n-type HPGe detector of 15.5% relative efficiency. Peaks from
this spectrum were added to a peak-free random background spectrum. This background was
mathematically generated after assessing the actual background level in real spectra.
Spectra were devised to test peak search, doublet resolution with equal and asymmetric
peak ratios and an efficiency test. A spectrum of an environmental, post Chernobyl, air filter sample was
included as a test of a 'real life' situation.
ReferencesAn evaluation of commercial IBM PC software for the analysis of low level environmental gamma-ray spectra
Sanderson, C.G., (1988), Environment International, 14,379-384
A reevaluation of commercial IBM PC software for the analysis of low-level environmental
(A spreadsheet program for the complete assessment of Sanderson test spectra is available at low cost from NTS Ltd. This also provides graphical display of the results.)
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