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Title: Rare Isotope Discoveries with Digital Electronics

Conference ·
OSTI ID:932040
 [1];  [1];  [2];  [3];  [2];  [4];  [1]
  1. ORNL
  2. University of Tennessee, Knoxville (UTK)
  3. Oak Ridge Associated Universities (ORAU)
  4. University of Liverpool

The discovery of the new isotopes 109Xe and 105Te was enabled by the application of a new experimental method using selective pulse shape storage from silicon detectors with digital signal processing electronics. Essential data processing algorithms were developed, which are able to find unique nuclear decay signatures, such as overlapping alpha decay induced signals. An experiment using this method led to the simultaneous detection of isotopes with dramatically different half lives T1/2(109Xe)=13(2) ms and T1/2(105Te)=620(70) ns. The ground state decay energies have been measured to be E (109Xe)=4062(7) keV and E (105Te)=4703(5) keV via observation of correlated events in the decay chain 109Xe 105Te 101Sn.

Research Organization:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Holifield Radioactive Ion Beam Facility (HRIBF)
Sponsoring Organization:
USDOE Office of Science (SC)
DOE Contract Number:
DE-AC05-00OR22725
OSTI ID:
932040
Resource Relation:
Conference: CAARI 2006: 19th Int'l Conf. on the Application of Accelerators in Research and Industry, Fort Worth, TX, USA, 20060820, 20060825
Country of Publication:
United States
Language:
English