Published March 2002
| Version v1
Journal article
The predicted 10.6 keV transition in 221Fr from the α-decay of 225Ac revealed
Creators
- 1. Laboratory of Nuclear Problems, JINR, Dubna (Russian Federation)
- 2. Laboratory of Nuclear Problems, JINR, Dubna (RU)
Description
The low energy electron spectrum from the α-decay of 225Ac has been measured with 20 eV instrumental resolution using an electrostatic spectrometer and radioactive sources prepared by vacuum evaporation. The predicted 10.642(5) keV M1 + < 0.05% E2 nuclear transition in 221Fr have been revealed. Energies of 26.015(5), 36.660(5), 38.543(3) and 108.37(1) keV nuclear transitions in 221Fr have been essentially improved. Relative intensities of the measured conversion electron lines of these transitions have also been determined. (author)
Availability note (English)
Available online at the Web site for the Journal of Physics. G, Nuclear and Particle Physics (ISSN 1361-6471) http://www.iop.org/Additional details
Identifiers
- URL
- http://www.iop.org/;
Publishing Information
- Journal Title
- Journal of Physics. G, Nuclear and Particle Physics
- Journal Volume
- 28
- Journal Issue
- 3
- Journal Page Range
- p. 463-467
- ISSN
- 0954-3899
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 33011060
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Descriptors DEI
- ACTINIUM 225; ALPHA DECAY; E2-TRANSITIONS; ELECTRON SPECTRA; ENERGY LEVELS; FRANCIUM 221; INTERNAL CONVERSION; M1-TRANSITIONS
- Descriptors DEC
- ACTINIDE NUCLEI; ACTINIUM ISOTOPES; ALPHA DECAY RADIOISOTOPES; CONVERSION; DAYS LIVING RADIOISOTOPES; DECAY; ENERGY-LEVEL TRANSITIONS; FRANCIUM ISOTOPES; HEAVY NUCLEI; ISOTOPES; MINUTES LIVING RADIOISOTOPES; MULTIPOLE TRANSITIONS; NUCLEAR DECAY; NUCLEI; ODD-EVEN NUCLEI; RADIOISOTOPES; SPECTRA
Optional Information
- Notes
- 11 refs