Published January 2010 | Version v1
Journal article Metadata-only

Studies of neutron-deficient mendelevium isotopes at SHIP

Creators

  • 1. Comenius University, Department of Nuclear Physics and Biophysics, Bratislava (Slovakia)
  • 2. GSI Helmholtzzentrum fuer Schwerionenforschung GmbH, Darmstadt (Germany)
  • 3. Goethe-Universitaet, Institut fuer Kernphysik, Frankfurt am Main (Germany)
  • 4. University of Oulu, Centre for Underground Physics in Pyhaesalmi (CUPP), Oulu (Finland)
  • 5. University of Jyvaeskylae, Department of Physics, Jyvaeskylae (Finland)

Description

The radioactive decay of the isotopes 247Md, 246Md and their daughter products was investigated by means of α-α and α-γ coincidence spectroscopy. The isotopes were produced using the fusion reaction 40Ar + 209Bi. Decay schemes are suggested for 247Md and 243Es. A new isomeric state in 246Md with a half-life of (4.4±0.8) s was observed. Previous data of electron-capture delayed fission of 246Md and 242Es were confirmed. The probability for this decay branch in 246Md was measured to be PECDF>0.10. The probability for electron-capture delayed fission in the case of 242Es was determined to be PECDF=0.013+0.012-0.007. (orig.)

Availability note (English)

Available from: http://dx.doi.org/10.1140/epja/i2009-10896-0

Additional details

Identifiers

DOI
10.1140/epja/i2009-10896-0;

Publishing Information

Journal Title
European Physical Journal. A
Journal Volume
43
Journal Issue
1
Journal Page Range
p. 35-44
ISSN
1434-6001

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
41025608
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
ALPHA DECAY; ALPHA SPECTRA; BRANCHING RATIO; DE-EXCITATION; DELAYED GAMMA RADIATION; EINSTEINIUM 242; EINSTEINIUM 243; ELECTRON CAPTURE DECAY; ENERGY SPECTRA; EXCITED STATES; EXPERIMENTAL DATA; FERMIUM 246; GAMMA SPECTRA; HALF-LIFE; ISOMERIC NUCLEI; MENDELEVIUM 246; MENDELEVIUM 247; SPONTANEOUS FISSION
Descriptors DEC
ACTINIDE NUCLEI; ALPHA DECAY RADIOISOTOPES; BETA DECAY; BETA DECAY RADIOISOTOPES; DATA; DECAY; DIMENSIONLESS NUMBERS; EINSTEINIUM ISOTOPES; ELECTROMAGNETIC RADIATION; ELECTRON CAPTURE RADIOISOTOPES; ENERGY LEVELS; ENERGY-LEVEL TRANSITIONS; EVEN-EVEN NUCLEI; FERMIUM ISOTOPES; FISSION; GAMMA RADIATION; HEAVY NUCLEI; INFORMATION; IONIZING RADIATIONS; ISOTOPES; MENDELEVIUM ISOTOPES; MILLISECONDS LIVING RADIOISOTOPES; NUCLEAR DECAY; NUCLEAR REACTIONS; NUCLEI; NUMERICAL DATA; ODD-EVEN NUCLEI; ODD-ODD NUCLEI; RADIATIONS; RADIOISOTOPES; SECONDS LIVING RADIOISOTOPES; SPECTRA; SPONTANEOUS FISSION RADIOISOTOPES