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Part-body and multibody effects on absorption of radio-frequency electromagnetic energy by animals and by models of manFine structure in the whole-body resonant curve for radio-frequency energy deposition in man can be attributed to part-body resonances. As for head resonance, which occurs near 350 MHz in man, the absorptive cross section is nearly three times the physical cross section of the head. The arm has a prominent resonance at 150 MHz. Numerical solutions, antenna theory, and experimental results on animals have shown that whole-body energy deposition may be increased by 50 percent or more because of multiple bodies that are strategically located in the field. Empirical equations for SARs are also presented along with test data for several species of laboratory animals. Barbiturate anesthesia is sufficiently disruptive of thermoregulation that delta Ts of colonic temperature yield energy dose values in several mammals that compare quite favorably with those based on whole-body calorimetry.
Document ID
19800038817
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Gandhi, O. P.
(Utah Univ. Salt Lake City, UT, United States)
Hagmann, M. J.
(Utah Univ. Salt Lake City, UT, United States)
Dandrea, J. A.
(Utah, University Salt Lake City, Utah, United States)
Date Acquired
August 10, 2013
Publication Date
December 1, 1979
Publication Information
Publication: Radio Science
Volume: 14
Subject Category
Aerospace Medicine
Accession Number
80A22987
Funding Number(s)
CONTRACT_GRANT: NAS2-9555
CONTRACT_GRANT: DAMD17-74-C-4092
Distribution Limits
Public
Copyright
Other

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