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The Processing of Energy Dispersion X-Ray Data in a Timesharing Computer

Published online by Cambridge University Press:  06 March 2019

Harold E. Marr  and
William J. Campbell
Harold E. Marr
Affiliation:
U. S. Bureau of Mines, College Park, Maryland 207^0
William J. Campbell
Affiliation:
U. S. Bureau of Mines, College Park, Maryland 207^0
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Abstract

A time-sharing computer was used in conjunction with a semiconductor detector and radioisotopic sources to evaluate energy dispersion x-ray analysis for the rapid analysis of copper base alloys. The time-sharing computer served two purposes: to aid in the development of the analytical method and to simulate the action of a dedicated computer that would eventually be used as part of an on-line analytical device. Some of the general capabilities of time-sharing computers are discussed in this paper with some emphasis on the differences between the computer requirements of energy dispersive x-ray methods and conventional x-ray spectrography.

An annular source of americium 24l was used with a secondary fluorescer to excite 23 brass and bronze alloys. The 400 channel spectrum from a multichannel analyzer was recorded on paper tape. A telephone coupled teletype was used to transmit the X-ray spectrum to the central processing facility. Curve fitting and statistical analysis programs similar to those available from most commercial time-sharing computer operations were utilised as well as other programs written at this laboratory for processing digitized spectra.

Type
Research Article
Information
Advances in X-Ray Analysis , Volume 16: 'Twenty-First Annual Conference on Applications of X-ray Analysis, August 2-4, 1972 , 1972 , pp. 206 - 216
Copyright
Copyright © International Centre for Diffraction Data 1972

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References

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