Low temperature nuclear orientation of239Np in gadolinium host |
| |
| Authors: | E Šimečková P Čižek M Finger J John P Malinský V N Pavlov |
| |
| Institution: | (1) Joint Institute for Nuclear Research, Dubna, Head Post Office Box 79, 101 000 Moscow, USSR;(2) Present address: Central Microtrone Lab., Technical University, Břehová 7, CS-115 19 Prague 1, Czechoslovakia |
| |
| Abstract: | The angular distribution of γ-radiation from the decay of239Np 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 in239Pu at 391.5 keV and 285.4 keV were calculated. From the anisotropies measured the multipole mixing ratios for 11 gamma-transitions
in239Pu were deduced. The results obtained support the assignment of spins of the levels at 492.2 keV and 391.6 keV as 3/2− and 7/2−, respectively. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
