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Fluorescent X-Ray Analysis of Highly Radioactive Samples

  • James I. Mueller (a1), Vincent G. Scotti (a1) and John J. Little (a1)


This paper describes the use of lead shielding and pulse height discrimination as aids in reducing the background counts due to radioactive samples. The samples under study in this work have radioactive levels up to 40 R/hr. at 17 centimeters combined β + γ.

Data are presented to illustrate the tiffectiveness of shielding and pulse height discrimination individually and combined.



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1 Knowles, D. J., 10th Pittsburgh X-Ray and Electron Diffraction Conference (1952) p. 32.
2 Kohler, T. R. and Pamsh, W., “X-Ray Diffractometry of Radioactive Samples Review of Scientific Instruments, Vol, 26, 1955, p. 374.
3 Cummings, W. V. Jr., Kaulitz, D. C., and Sanderson, U. J., “Double Diffracting X-ray Spectrometer for Study of Irradiated Materials,” Review of Scientific Instruments, Vol. 26, (1955) p. 5.
4 Bredig, M. A., Klein, G. E., and Borie, R. S. Jr., “X-Ray Diffractometer for Highly Radioactive Materials,” Review of Scientific Instruments, Vol. 26, (1955), p.610.
5 Mueller, J. I., Mayes, R. E., and Simens, H. G., Internal company memorandum January 2, 1957.


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