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Design philosophy for high-resolution rate and throughput spectroscopy systems [electronic resource].

Published:
Berkeley, Calif. : Lawrence Berkeley National Laboratory, 1982.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:
Pages: 11 : digital, PDF file
Additional Creators:
Lawrence Berkeley National Laboratory and United States. Department of Energy. Office of Scientific and Technical Information
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Summary:
The paper describes the philosophy behind the design of a pulse processing system used in a semiconductor detector x-ray spectrometer to be used for plasma diagnostics at the Princeton TFTR facility. This application presents the unusual problems of very high counting rates and a high-energy neutron background while still requiring excellent resolution. To meet these requirements three specific new advances are included in the design: (i) A symmetrical triangular pulse shape is employed in the main pulse-processing channel. A new simple method of generating a close approximation to the symmetrical triangle has been developed. (ii) To cope with the very wide dynamic range of signals while maintaining a constant fast resolving time, approximately symmetical triangular pulse shaping is also used in the fast pulse pile-up inspection channel. (iii) The demand for high throughput has resulted in a re-examination of the operation of pile-up rejectors and pulse stretchers. As a result a technique has been developed that, for a given total pulse shaping time, permits approximately a 40% increase in throughput in the system. Performance results obtained using the new techniques are presented.
Report Numbers:
E 1.99:lbl-14464
E 1.99: conf-821011-29
conf-821011-29
lbl-14464
Subject(s):
Other Subject(s):
Note:
Published through SciTech Connect.
05/01/1982.
"lbl-14464"
" conf-821011-29"
"DE83004117"
IEEE nuclear science symposium, Washington, DC, USA, 20 Oct 1982.
Goulding, F.S.; Madden, N.W.; Landis, D.A.
Funding Information:
AC03-76SF00098
View MARC record | catkey: 14753706