Identification of new neutron-rich rare-earth isotopes produced in /sup 252/Cf fission
Journal Article
·
· Phys. Rev. C; (United States)
New neutron-rich isotopes of several rare-earth elements have been identified using on-line mass separation. The observed decay rates of K x rays in the mass separated fractions for which 153less than or equal toAless than or equal to162, together with the associated ..gamma..-decay spectra, provided direct isotopic identifications. New isotopes observed, with values of their half lives given in parentheses, are /sup 153/Pr (4.3 +- 0.2 s), /sup 155/Nd (8.9 +- 0.2 s), /sup 156/Nd (5.47 +- 0.11 s), /sup 157/Pm (10.90 +- 0.20 s), /sup 158/Pm (4.8 +- 0.5 s), and /sup 162/Eu (10.6 +- 1.0 s). In addition, we have confirmed recent reports of the observation of /sup 153/Nd (28.9 +- 0.4 s), /sup 154/Nd (25.9 +- 0.2 s), /sup 156/Pm (26.70 +- 0.10 s), /sup 159/Sm (11.37 +- 0.15 s), and /sup 160/Sm (9.6 +- 0.3 s). These half-life values are compared to the reuslts of theoretical predictions.
- Research Organization:
- Idaho National Engineering Laboratory, EGandG Idaho, Inc., Idaho Falls, Idaho 83415
- OSTI ID:
- 5977358
- Journal Information:
- Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 35:5; ISSN PRVCA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Identification of new neutron-rich rare-earth isotopes produced in /sup 252/Cf spontaneous fission
{beta}-decay half-lives of new neutron-rich rare-earth isotopes {sup 159}Pm,{sup 162}Sm, and {sup 166}Gd
94 {beta}-Decay Half-Lives of Neutron-Rich 55Cs to 67Ho: Experimental Feedback and Evaluation of the r-Process Rare-Earth Peak Formation
Conference
·
Wed Dec 09 23:00:00 EST 1987
· AIP Conf. Proc.; (United States)
·
OSTI ID:5401168
{beta}-decay half-lives of new neutron-rich rare-earth isotopes {sup 159}Pm,{sup 162}Sm, and {sup 166}Gd
Journal Article
·
Wed Jun 01 00:00:00 EDT 2005
· Physical Review. C, Nuclear Physics
·
OSTI ID:20698788
94 {beta}-Decay Half-Lives of Neutron-Rich 55Cs to 67Ho: Experimental Feedback and Evaluation of the r-Process Rare-Earth Peak Formation
Journal Article
·
Thu Feb 16 23:00:00 EST 2017
· Physical Review Letters
·
OSTI ID:1345511
Related Subjects
651820* -- Nuclear Properties & Reactions
A=150-189
Experimental
652020 -- Nuclear Properties & Reactions
A=220 & above
Experimental
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALPHA DECAY RADIOISOTOPES
CALIFORNIUM 252
CALIFORNIUM ISOTOPES
DATA
DECAY
EUROPIUM ISOTOPES
EVEN-EVEN NUCLEI
EXPERIMENTAL DATA
FISSION
GAMMA SPECTRA
HALF-LIFE
HEAVY NUCLEI
INFORMATION
ISOTOPE PRODUCTION
ISOTOPES
NEODYMIUM ISOTOPES
NEUTRON-RICH ISOTOPES
NUCLEAR REACTIONS
NUCLEI
NUMERICAL DATA
PROMETHIUM ISOTOPES
RADIOISOTOPES
RARE EARTH ISOTOPES
SAMARIUM ISOTOPES
SPECTRA
SPONTANEOUS FISSION
X-RAY SPECTRA
YEARS LIVING RADIOISOTOPES
A=150-189
Experimental
652020 -- Nuclear Properties & Reactions
A=220 & above
Experimental
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALPHA DECAY RADIOISOTOPES
CALIFORNIUM 252
CALIFORNIUM ISOTOPES
DATA
DECAY
EUROPIUM ISOTOPES
EVEN-EVEN NUCLEI
EXPERIMENTAL DATA
FISSION
GAMMA SPECTRA
HALF-LIFE
HEAVY NUCLEI
INFORMATION
ISOTOPE PRODUCTION
ISOTOPES
NEODYMIUM ISOTOPES
NEUTRON-RICH ISOTOPES
NUCLEAR REACTIONS
NUCLEI
NUMERICAL DATA
PROMETHIUM ISOTOPES
RADIOISOTOPES
RARE EARTH ISOTOPES
SAMARIUM ISOTOPES
SPECTRA
SPONTANEOUS FISSION
X-RAY SPECTRA
YEARS LIVING RADIOISOTOPES