You need JavaScript to view this

Absolute El Transition Probabilities in the Deformed Nuclei {sup 177}Yb and {sup 1}

Abstract

The absolute E1-transition probabilities have been measured for two 7/2{sup -} (514) levels populated from the short-lived isomers {sup 177m}Yb (6.4 sec) and {sup 179m}Hf (18.6 sec), a delayed coincidence set up being used for the purpose. This gave a half life of T{sub 1/2} = (4.48 {+-} 0.08)x10{sup -9} sec for the 104 keV level in {sup 177}Yb and T{sub 1/2} = (1.86 {+-} 0.05)x10{sup -9} sec for the 217 keV level in {sup 179}Hf. The result has been compared with the calculations made by Nilsson. The effect of the pairing correlation has also been taken into account. An agreement with the experimental values to within a factor of three is obtained. An extrapolated estimate of the half life for the 408.9 keV 7/2{sup -} (514) level in {sup 181}W gives 3x10{sup -11} sec.
Authors:
Publication Date:
Aug 15, 1964
Product Type:
Technical Report
Report Number:
AE-152
Resource Relation:
Other Information: 21 refs., 3 figs., 2 tabs.
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; YTTERBIUM 177; HAFNIUM 179; E1-TRANSITIONS; TUNGSTEN 181; ENERGY-LEVEL TRANSITIONS; HALF-LIFE
OSTI ID:
20931034
Research Organizations:
AB Atomenergi, Nykoeping (Sweden)
Country of Origin:
Sweden
Language:
English
Other Identifying Numbers:
TRN: SE0708426
Availability:
Commercial reproduction prohibited; OSTI as DE20931034
Submitting Site:
SWDN
Size:
26 pages
Announcement Date:
Sep 29, 2007

Citation Formats

Malmskog, Sven G. Absolute El Transition Probabilities in the Deformed Nuclei {sup 177}Yb and {sup 1}. Sweden: N. p., 1964. Web.
Malmskog, Sven G. Absolute El Transition Probabilities in the Deformed Nuclei {sup 177}Yb and {sup 1}. Sweden.
Malmskog, Sven G. 1964. "Absolute El Transition Probabilities in the Deformed Nuclei {sup 177}Yb and {sup 1}." Sweden.
@misc{etde_20931034,
title = {Absolute El Transition Probabilities in the Deformed Nuclei {sup 177}Yb and {sup 1}}
author = {Malmskog, Sven G}
abstractNote = {The absolute E1-transition probabilities have been measured for two 7/2{sup -} (514) levels populated from the short-lived isomers {sup 177m}Yb (6.4 sec) and {sup 179m}Hf (18.6 sec), a delayed coincidence set up being used for the purpose. This gave a half life of T{sub 1/2} = (4.48 {+-} 0.08)x10{sup -9} sec for the 104 keV level in {sup 177}Yb and T{sub 1/2} = (1.86 {+-} 0.05)x10{sup -9} sec for the 217 keV level in {sup 179}Hf. The result has been compared with the calculations made by Nilsson. The effect of the pairing correlation has also been taken into account. An agreement with the experimental values to within a factor of three is obtained. An extrapolated estimate of the half life for the 408.9 keV 7/2{sup -} (514) level in {sup 181}W gives 3x10{sup -11} sec.}
place = {Sweden}
year = {1964}
month = {Aug}
}