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The Journal of Nuclear Medicine Vol. 5 No. 7 562-564
© 1964 by Society of Nuclear Medicine
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Channel Ratio in the Determination Of Two Gamma-Emitting Radioisotopes1,2,

Richard P. Spencer, M.D., Ph.D. and Burton Seife, M.D.

New Haven, Connecticut

ABSTRACT

Calculation of the channel ratio, when two gamma-emitting isotopes are present, can be used to determine the constants in the equations relating channel counts to quantity of radioactivity, the amount of each radioisotope in a mixed sample, the ratio of the two radioisotopes, nad the fraction of either isotope in a mixture.

FOOTNOTES

1 Sections of Nuclear Medicine and Radiodiagnosis, Department of Radiology, Yale University School of Medicine, New Haven, Connecticut.

2 Supported by Grants HD 411 and AM 08211 from the U. S. Public Health Service.






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Copyright © 1964 by the Society of Nuclear Medicine.