Published September 2005 | Version v1
Journal article Metadata-only

Alpha-decay study of 218U; a search for the sub-shell closure at Z=92

Creators

  • 1. University of Jyvaeskylae, Department of Physics, Jyvaeskylae (Finland)
  • 2. University of Helsinki, Department of Physics, Helsinki (Finland)
  • 3. GSI, Darmstadt (Germany)
  • 4. University of Copenhagen, Department of Physics, Copenhagen (Denmark)

Description

Neutron-deficient uranium isotopes were studied via α spectroscopic methods. A low-lying α-decaying isomeric state was found in 218U. The new isomeric state was assigned spin and parity Iπ=8+. The isomer decays by α emission with an energy E=10678(17) keV and with a half-life T1/2=(0.56+0.26-0.14) ms. The known alpha-decay properties of the ground state of 218U was measured with improved statistics. The ground-state α-decay has an energy E=8612(9) keV and a half-life T1/2=(0.51+0.17-0.10) ms. (orig.)

Availability note (English)

Available from: http://dx.doi.org/10.1140/epjad/i2005-06-116-y

Additional details

Identifiers

DOI
10.1140/epjad/i2005-06-116-y;

Publishing Information

Journal Title
European Physical Journal. A
Journal Volume
25
Journal Issue
Suppl.1
Journal Page Range
p. 183-184
ISSN
1434-6001

Conference

Title
4. international conference on exotic nuclei and atomic masses
Acronym
ENAM '04
Dates
12-16 Sep 2004
Place
Pine Mountain, GA (United States)

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
36103825
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Resource subtype / Literary indicator
Conference, Numerical Data
Descriptors DEI
ALPHA DECAY; EXCITED STATES; EXPERIMENTAL DATA; GROUND STATES; HALF-LIFE; HIGH SPIN STATES; ISOMERIC NUCLEI; NEUTRON-DEFICIENT ISOTOPES; PARITY; Q-VALUE; SPIN; URANIUM 218
Descriptors DEC
ACTINIDE NUCLEI; ALPHA DECAY RADIOISOTOPES; ANGULAR MOMENTUM; DATA; DECAY; ENERGY; ENERGY LEVELS; EVEN-EVEN NUCLEI; HEAVY NUCLEI; INFORMATION; ISOTOPES; MILLISECONDS LIVING RADIOISOTOPES; NUCLEAR DECAY; NUCLEI; NUMERICAL DATA; PARTICLE PROPERTIES; RADIOISOTOPES; URANIUM ISOTOPES