ISSN:
1434-601X
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract Using nuclear fusion reactions of40Ar ions with112Cd,114Sn and116Sn and subsequentγ-ray spectroscopy, the probability ratios of positron emission and electron capture,β +/EC k andβ +/(EC+β +), are determined for individualβ-transitions in the decay of147m ,148m ,149m Tb,148Dy and150m ,152m Ho. From comparison with theoretical ratios the followingQ EC values, given in keV, are derived:147m Tb, 4.620(60);148m Tb, 5.730(30);149m Tb, 3.610(50);148Dy, 2.680(30);150m Ho, 6.625(120) and152m Ho, 6.470(80). The present decay-energy data are compared with earlier measurements and the new information obtained for the mass surface around146Gd is discussed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01411858
Permalink