Hostname: page-component-6bf8c574d5-xtvcr Total loading time: 0 Render date: 2025-02-14T12:18:28.228Z Has data issue: false hasContentIssue false
  • English
  • Français

Suppression of X-Ray Fluorescence Background in X-Ray Powder Diffraction by a Mercuric Iodide Spectrometer

Published online by Cambridge University Press:  06 March 2019

J. Nissenbaum ,
A. Levi ,
A. Burger ,
M. Schieber  and
Z. Burshtein
J. Nissenbaum
Affiliation:
School of Applied Science and Technology, The Hebrew University of Jerusalem, Jerusalem 91 000, Israel
A. Levi
Affiliation:
School of Applied Science and Technology, The Hebrew University of Jerusalem, Jerusalem 91 000, Israel
A. Burger
Affiliation:
School of Applied Science and Technology, The Hebrew University of Jerusalem, Jerusalem 91 000, Israel
M. Schieber
Affiliation:
School of Applied Science and Technology, The Hebrew University of Jerusalem, Jerusalem 91 000, Israel
Z. Burshtein
Affiliation:
Nuclear Research Centre-Negev, P.O.Box 9001, Beer-Sheva 84 190, Israel
Get access

Abstract

We have explored the merits of using a Hgl2 spectrometer as a detector in x-ray diffraction systems instead of a proportional gas counter, or a scintillation counter. The full width at half maximum energy resolution of the HgI2 spectrometer used was about 1.1 keV for the CuKα line (8.1 keV), and about 1.5 keV for the MoKα line (17.4 keV), The energy resolution was utilised to eliminate x-ray fluorescence background from powder diffraction spectra. We demonstrate the suppression of Fe x-ray fluorescence in diffraction patterns of ErFe03 obtained with a Cu x-ray tube, and of Y x-ray fluorescence in diffraction patterns of Y2O3 obtained with a Mo x-ray tube. The peak height to background ratios were improved by about an order of magnitude in both cases.

Type
Research Article
Information
Advances in X-Ray Analysis , Volume 27: Thirty-Second Annual Conference on Applications of X-ray Analysis, August 1-5, 1983 , 1983 , pp. 307 - 316
Copyright
Copyright © International Centre for Diffraction Data 1983

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Nissenbaum, J., Levi, A. A. Burger and Schieber, M., Replacement of monochromator and proportional gas counter by Hgl2 detector in x-ray diffraction, J. Appl. Cryst. 16:136 (1983).Google Scholar
2. Schieber, M., Fabrication of Hgl2 nuclear detectors, Nucl. Instr. Methods 144:469 (19/7).Google Scholar
3. Singh, M., Clark, B. C., Dabrowski, A. J., Iwancsyk, J. S., Leyden, D. E. and Baird, A. K., Blackground and sensitivity considerations of x-ray fluorescence analysis with a room temperature Hgl2 spectrometer, Adv. x-ray Anal. 24:337 (1981).Google Scholar
4. Nissenbaum, J., Holzer, A. M. Roth and Schieber, M., Fluorescence analysis of high z materials with mercuric iodide room temperature detectors Adv. x-ray Anal. 24:303 (1981).Google Scholar
5. Singh, M., Computer analysis of x-ray fluorescence spectra obtained with a room-temperature Hgl2 detector and two application studies, Nucl. Instr, Methods, Phys. Res., 193:135 (1982).Google Scholar
6. Singh, M., Dabrowski, A. J., Huth, G. C., Iwanczyk, J. C., Clark, B. C. and Baird, A. K., X-ray fluorescence analysis at room temperature with an energy dispersive Hgl2 Spectrometer, Adv. X-ray Anal. 23:249 (1980).Google Scholar
7. Dabrowski, A. J., Huth, G. C., Singh, M., Economou, T. E. and Turkevich, A. L., characteristic x-ray spectra of Na and Mg measured at room temperature using Hgl2 detectors, Appl. Phys. Letters 33:211 (1978).Google Scholar
8. Huth, J. C., Dabrowski, A. J., Singh, M., Economou, T. E. and Turkevich, A. L., A new x-ray spectroscopy concept-room temperature Hgl2 with Peltier-cooled pre-amplification, Adv. x-ray Anal. 22:461 (1979).Google Scholar
9. Iwanczyk, J. S., Kusmiss, J. S., Dabrowski, A. J., Barton, J. B. and Huth, G. C., Room temperature Hgl2 spectrometry for low-energy x-rays, Nucl. Instr. Methods, Phys, Res. 193:73 (1982).Google Scholar
10. Melamud, M., Burshtein, Z. A. Levi and Schieber, M. M., New thermal neutron solid-state electronic detector based on Hgl2 x-ray detector, Appl. Phys. Letters 43:275 (1983).Google Scholar
11. Beinglass, I., Kaufman, L. K. Hoisier and Hoenninger, J., Evaluation of Hgl2 detector for x-ray computed tomography, Med. Phys. 7:370 (1980).Google Scholar
12. Levi, A., Roth, M. Schieber, M., S. Lavy and Cooper, G., Development of Hgl2 gamma radiation detector for application in nuclear medicine, IEEE Trans. Nucl. Sci. NS-29:457 (1982).Google Scholar
13. Lahiri, A., Crawley, J.C.W. and Raftery, E. B., A mercuric iodide detector for continuous monitoring of left venticular function, Talk presented at the Society of Nuclear Medicine, 30th Annual Meeting. St. Louis, Missuri, June 7-10, 1983.Google Scholar
14. Iwanczyk, I. S., Barton, J. B., Dabrowski, A. J., Kusmiss, J. H. and Szymczyk, W. M., A. novel radiation detector consisting of an Hgl2 photodetector coupled to a scintillator, IEEE Trans. Nucl. Sci. NS-30:363 (1983).Google Scholar
15. Malm, H. L., Raudorf, T. W., M. Martini and Zanio, K. R., Gairtmaray efficiency comparisons for Si(Li), germanium, cadmium telluride and mercury(II)iodide detectors, IEEE Trans, Nucl. Sci. NS-15:500 (1973).Google Scholar
16. Levi, A., Schieber, M.M. and Burshtein, Z., Carrier surface recombination in Hgl2 photon detectors, J. Appl. Phys. 54:2472 (1983).Google Scholar
17. Bearden, J. A., x-ray wavelengths p. E131 in “Handbook of Chemistry and Physics” 3rd edition, CRC press, Cleveland, Ohio, U.S.A. (1972-73).Google Scholar
18. File # 20-389, in “Powder diffraction file”, Joint Committee of Powder DiTTraction Standards, Philadelphia, U.S.A.(1967).Google Scholar
19. File # 5-0574 Ref. 18.Google Scholar
20. File # 23-240 in Ref. 18.Google Scholar
21. File # 20-1412 in Ref. 18.Google Scholar
22. Iwanczyk, J. S., Dabrowslci, A. J., D. Del Duca and Schnepple, W., A study of low noise pre-amplifier system for use with room-temperature x-ray detectors, IEEE Trans. Nucl. Sci. NS-28:579 (1981).Google Scholar
23. Dabrowski, A. J. and Huth, G. C., Towards the energy resolution limit of room-temperature low energy x-ray spectrometry, IEEE Trans. Nucl. Sci. NS-2S:205 [1978).Google Scholar
24. “Harshow” catalog of scintillation counters.Google Scholar
25. “Philips” proportional detector probe instruction manual.Google Scholar
26. “Ortec“/“Tractor“/“KevexI catalogs of x-ray detectors.Google Scholar