https://doi.org/10.1140/epjad/i2005-06-028-x
ENAM 2004
A novel way of doing decay spectroscopy at a radioactive ion beam facility
1
Physics Division, Oak Ridge National Laboratory, 37831, Oak Ridge, TN, USA
2
Department of Physics and Astronomy, Mississippi State University, 39762, Mississippi State, MS, USA
3
UNIRIB, Oak Ridge Associated Universities, 37831, Oak Ridge, TN, USA
4
Department of Physics, University of Tennessee, 37966, Knoxville, TN, USA
5
Department of Physics and Astronomy, Vanderbilt University, 37235, Nashville, TN, USA
6
Joint Institute for Heavy Ion Research, 37831, Oak Ridge, TN, USA
7
Department of Physics, Louisiana State University, 37831, Baton Rouge, LA, USA
* e-mail: cgross@phy.ornl.gov
Received:
9
December
2004
Accepted:
18
February
2005
Published online:
20
April
2005
A technique to enhance the purity of accelerated radioactive ion beams for decay studies is presented. The technique requires a 3MeV/nucleon beam and a transmission ionization chamber. The gas pressure in the multi-anode ionization chamber is adjusted so that high-Z components of the beam are ranged out in the gas transmitting the more exotic, low-Z components to the measuring station. Initial tests with a radioactive 120Ag and 120In mixed beam indicate at least a factor of 5 relative enhancement of the 120Ag decay transitions.
PACS: 23.40.-s β decay; double β decay; electron and muon capture – / 29.40.Cs Gas-filled counters: ionization chambers, proportional, and avalanche counters – / 27.60.+j 90 ⩽ A ⩽ 149 –
© Società Italiana di Fisica and Springer-Verlag, 2005