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Thick-target yields of iodine isotopes from proton interactions in Te, and the double-[beta] decay of [sup 128,130]Te

Conference ·
OSTI ID:6369995
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  1. Lawrence Berkeley Lab., CA (United States)
  2. Lawrence Berkeley Lab., CA (United States) California Univ., Berkeley, CA (United States). Dept. of Physics
  3. Tennessee Technological Univ., Cookeville, TN (United States). Dept. of Physics
We report thick-target yields of [sup 126,128,130]I from the bombardment of natural Te targets with 15-, 30-, 45- and 50-MeV protons, together with the iodine production cross sections for 1.85- and 5.0-GeV protons. With these data, we have estimated the relative cosmic-ray induced production of [sup 126]Xe, [sup 128]Xe and [sup 13O]Xe in Te ores. These quantities affect the ratio of double-[beta] decay half-lives of [sup 13O]Te and [sup 128]Te. A revised correction of cosmic-ray induced xenon can change the half-life ratio by as much as 10%, from (3.52[plus minus]0.11) [times] 10[sup [minus]4] to (3.88[plus minus]0.14) [times] 10[sup [minus]4].
Research Organization:
Lawrence Berkeley Lab., CA (United States)
Sponsoring Organization:
DOE; USDOE, Washington, DC (United States)
DOE Contract Number:
AC03-76SF00098
OSTI ID:
6369995
Report Number(s):
LBL-33904; CONF-930779--14; ON: DE93013914
Country of Publication:
United States
Language:
English