Published June 1997 | Version v1
Journal article Metadata-only

Alpha-decay characteristics of neutron-deficient 190Po, 189Bi and 186Pb isotopes

Creators

  • 1. Leuven Univ. (Belgium). Inst. voor Kern- en Stralingsfysica
  • 2. Department of Physics, University of Jyvaeskylae, FIN-40351 Jyvaeskylae (Finland)

Description

The neutron-deficient 190Po and 189Bi isotopes have been produced in the 2n respectively p2n channels of the 48Ti+144Sm reaction. Cross sections for different reaction channels are given. For 190Po, improved values of α-energy Eα=7550(15) keV and half-life T1/2=1.9+0.6-0.4 ms were measured. By using correlated α-decay chains an α-branching ratio of 0.50(25) was deduced for 186Pb. The reduced α-width systematic is extended for both of these isotopes, confirming a persistence of the saturation towards the lighter Po isotopes and the absence of any anomalies for the neutron-deficient Pb isotopes. For 189Bi improved values of Eα=7300(15) keV and T1/2=4.8(5) ms were measured. (orig.). With 2 figs

Additional details

Publishing Information

Journal Title
Zeitschrift fuer Physik. A, Hadrons and Nuclei
Journal Volume
358
Journal Issue
1
Journal Page Range
p. 63-68.
ISSN
0939-7922
CODEN
ZPAHEX

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
28054117
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
ALPHA DECAY; ALPHA SPECTRA; BISMUTH 189; BRANCHING RATIO; ENERGY SPECTRA; EXPERIMENTAL DATA; HALF-LIFE; HEAVY ION FUSION REACTIONS; INTEGRAL CROSS SECTIONS; LEAD 186; MEV RANGE 100-1000; NEUTRON-DEFICIENT ISOTOPES; POLONIUM ISOTOPES; Q-VALUE; SAMARIUM 144 TARGET; SAMARIUM 154 TARGET; TITANIUM 48 REACTIONS
Descriptors DEC
ALPHA DECAY RADIOISOTOPES; BETA DECAY RADIOISOTOPES; BISMUTH ISOTOPES; CROSS SECTIONS; DATA; DECAY; ELECTRON CAPTURE RADIOISOTOPES; ENERGY; ENERGY RANGE; EVEN-EVEN NUCLEI; HEAVY ION REACTIONS; HEAVY NUCLEI; INFORMATION; ISOTOPES; LEAD ISOTOPES; MEV RANGE; NUCLEAR DECAY; NUCLEAR REACTIONS; NUCLEI; NUCLEOSYNTHESIS; NUMERICAL DATA; ODD-EVEN NUCLEI; RADIOISOTOPES; SECONDS LIVING RADIOISOTOPES; SPECTRA; SYNTHESIS; TARGETS