Decay of the very neutron-deficient isotope 131Pm
Creators
- 1. Chinese Acad. of Sci., Lanzhou (China). Inst. of Modern Phys.
Description
The decay of 131Pm has been investigated by means of γ-ray spectroscopy. The 131Pm nuclei were produced by fusion-evaporation reaction of 106Cd(32S,3p4n) at the beam energy of 170 MeV. A helium-jet technique and a tape transport system were used to collect the activities and transfer them to a detecting position for X and γ rays measurement. Two γ rays of 185.0 and 220.0 keV were unambiguously identified to follow the β+ decay of 131Pm by results of X-γ and γ-γ coincidence. A growth-decay feature of the decay curve for 87.8 keV γ-ray of 131Nd confirmed the production of 131Pm nuclei. The half-life of 131Pm was measured to be 6.3 ± 0.8 s. A partial decay scheme of 131Pm is proposed on the basis of X-γ and γ-γ coincidence data in this experiment and the known structure information deduced from in-beam experiments of the daughter nucleus 131Nd. (orig.)
Additional details
Publishing Information
- Journal Title
- European Physical Journal. A
- Journal Volume
- 6
- Journal Issue
- 1
- Journal Page Range
- p. 59-61
- ISSN
- 1434-6001
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 30045726
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS; S73: NUCLEAR PHYSICS AND RADIATION PHYSICS; S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- BETA-PLUS DECAY; DE-EXCITATION; DELAYED GAMMA RADIATION; ENERGY SPECTRA; EXCITED STATES; EXPERIMENTAL DATA; GAMMA CASCADES; HALF-LIFE; NEODYMIUM 131; PROMETHIUM 131
- Descriptors DEC
- BETA DECAY; BETA DECAY RADIOISOTOPES; BETA-PLUS DECAY RADIOISOTOPES; DATA; DECAY; ELECTROMAGNETIC RADIATION; ELECTRON CAPTURE RADIOISOTOPES; ENERGY LEVELS; ENERGY-LEVEL TRANSITIONS; EVEN-ODD NUCLEI; GAMMA RADIATION; INFORMATION; INTERMEDIATE MASS NUCLEI; IONIZING RADIATIONS; ISOTOPES; NEODYMIUM ISOTOPES; NUCLEAR CASCADES; NUCLEAR DECAY; NUCLEI; NUMERICAL DATA; ODD-EVEN NUCLEI; PROMETHIUM ISOTOPES; RADIATIONS; RADIOISOTOPES; RARE EARTH NUCLEI; SECONDS LIVING RADIOISOTOPES; SPECTRA
Optional Information
- Notes
- With 3 figs., 10 refs.