Thumbnail
Access Restriction
Open

Author Porter, R. A. ♦ McMillan, W. G.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PHYSICS ♦ DIFFERENTIAL EQUATIONS ♦ ELECTRIC POTENTIAL ♦ ELECTRONS ♦ GAMMA RADIATION ♦ HALF-LIFE ♦ INTERNAL CONVERSION ♦ ISOMERS ♦ METALS ♦ NUCLEAR THEORY ♦ PRESSURE ♦ QUANTUM MECHANICS ♦ STATISTICS ♦ TECHNETIUM 99 ♦ THERMODYNAMICS ♦ VOLUME
Abstract ABS>The Thomas-Fermi statistical potential was employed to obtain the initial and final state electronic wave functions for two volumes: the normal uncompressed state and the 10% compressed state. The compressibility of technetium metal was estimated to be 0.27 megabar/sup -1/. From this compressibility and the assumption that the internal conversion coefficient is linear in pressure, the fractional decrease in lifetime was calculated to be 2 to 4 x 10/sup -4/ for the experimental pressure of 0.1 megabar. This result agrees well with Bainbridge's measurement, 2.3 plus or minus 0.5 x 10/sup -4/. (auth)
ISSN 0031899X
Educational Use Research
Learning Resource Type Article
Publisher Date 1960-02-01
Publisher Department Univ. of California, Livermore ♦ Univ. of California, Los Angeles ♦ RAND Corp., Santa Monica, Calif.
Journal Physical Review
Volume Number 117
Organization Univ. of California, Livermore ♦ Univ. of California, Los Angeles ♦ RAND Corp., Santa Monica, Calif.


Open content in new tab

   Open content in new tab