Published June 1989
| Version v1
Journal article
New neutron-rich isotopes of astatine and bismuth
Creators
- 1. McMaster Univ., Hamilton, Ontario (Canada). Dept. of Physics
- 2. Gesellschaft fuer Schwerionenforschung m.b.H., Darmstadt (Germany, F.R.)
- 3. European Organization for Nuclear Research, Geneva (Switzerland)
- 4. Oslo Univ. (Norway). Dept. of Chemistry
- 5. Mainz Univ. (Germany, F.R.). Inst. fuer Kernchemie
- 6. Warsaw Univ. (Poland). Inst. Fizyki Doswiadczalnej
- 7. Bergen Univ. (Norway). Inst. of Physics
- 8. Chalmers Univ. of Tech., Goeteborg (Sweden). Inst. of Physics
Description
Neutron-rich isotopes of astatine have been produced through spallation reactions with 600 MeV protons on a 232Th target and identified by spectroscopic techniques combined with one-line mass separation at the ISOLDE facility. The half-lives of 218At and 219At have been remeasured to be 1.5(3) s and 57(4) s, respectively. Four new isotopes of astatine, 220-223At, have been observed for the first time, and their half-lives were found to be 3.73(13) min, 2.3(2) min, 54(10) s, and 50(7) s, respectively. Another nuclide, 216Bi, has been observed for the first time as the daughter product of the 220At alpha decay, and its half-life has been measured to be 6.6(21) min. (orig.)
Additional details
Publishing Information
- Journal Title
- Zeitschrift fuer Physik, A: Atomic Nuclei
- Journal Volume
- 333
- Journal Issue
- 2
- Series
- Z. Phys., A: At. Nuclei.
- Journal Page Range
- 131-135
- ISSN
- 0930-1151
- CODEN
- ZAANE
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 20043971
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS; S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- ALPHA DECAY; ALPHA SPECTRA; ASTATINE ISOTOPES; ASTATINE 218; ASTATINE 219; ASTATINE 220; ASTATINE 221; ASTATINE 222; ASTATINE 223; BETA-MINUS DECAY; BISMUTH 216; ENERGY SPECTRA; EXPERIMENTAL DATA; GAMMA SPECTRA; HALF-LIFE; K CONVERSION; NEUTRON-RICH ISOTOPES; X-RAY SPECTRA
- Descriptors DEC
- ALPHA DECAY RADIOISOTOPES; BETA DECAY; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; BISMUTH ISOTOPES; CONVERSION; DATA; DECAY; HEAVY NUCLEI; INFORMATION; INTERNAL CONVERSION; ISOTOPES; MINUTES LIVING RADIOISOTOPES; NUCLEAR DECAY; NUCLEI; NUMERICAL DATA; ODD-EVEN NUCLEI; ODD-ODD NUCLEI; RADIOISOTOPES; SECONDS LIVING RADIOISOTOPES; SPECTRA
Optional Information
- Collaborations
- ISOLDE Collaboration.