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Low temperature nuclear orientation of239Np in gadolinium host

Authors :
Šimečková, E.
Čižek, P.
Finger, M.
John, J.
Malinský, P.
Pavlov, V.
Source :
Hyperfine Interactions; August 1990, Vol. 59 Issue: 1-4 p185-188, 4p
Publication Year :
1990

Abstract

Abstract: The angular distribution of γ-radiation from the decay of<superscript>239</superscript>Np oriented at low temperatures in gadolinium host was investigated. The orientation parameters B2 and B4 were determined. The attenuation factors for two long-living states in<superscript>239</superscript>Pu at 391.5 keV and 285.4 keV were calculated. From the anisotropies measured the multipole mixing ratios for 11 gamma-transitions in<superscript>239</superscript>Pu were deduced. The results obtained support the assignment of spins of the levels at 492.2 keV and 391.6 keV as 3/2<superscript>−</superscript> and 7/2<superscript>−</superscript>, respectively.

Details

Language :
English
ISSN :
03043843 and 15729540
Volume :
59
Issue :
1-4
Database :
Supplemental Index
Journal :
Hyperfine Interactions
Publication Type :
Periodical
Accession number :
ejs17173738
Full Text :
https://doi.org/10.1007/BF02401220