Cosmogenic-neutron activation of TeO2 and implications for neutrinoless double-β decay experiments

B. S. Wang, E. B. Norman, N. D. Scielzo, A. R. Smith, K. J. Thomas, and S. A. Wender
Phys. Rev. C 92, 024620 – Published 27 August 2015

Abstract

Flux-averaged cross sections for cosmogenic-neutron activation of natural tellurium were measured using a neutron beam containing neutrons of kinetic energies up to 800 MeV and having an energy spectrum similar to that of cosmic-ray neutrons at sea level. Analysis of the radioisotopes produced reveals that Ag110m will be a dominant contributor to the cosmogenic-activation background in experiments searching for neutrinoless double-β decay of Te130, such as the Cryogenic Underground Observatory for Rare Events (CUORE) and the Sudbury Neutrino Observatory Plus (SNO+). An estimate of the cosmogenic-activation background in the CUORE experiment has been obtained using the results of this measurement and cross-section measurements of proton activation of tellurium. Additionally, the measured cross sections in this work are also compared with results from semiempirical cross-section calculations.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Received 27 February 2015

DOI:https://doi.org/10.1103/PhysRevC.92.024620

©2015 American Physical Society

Authors & Affiliations

B. S. Wang1, E. B. Norman1,2, N. D. Scielzo2, A. R. Smith3, K. J. Thomas1,3, and S. A. Wender4

  • 1Department of Nuclear Engineering, University of California, Berkeley, California 94720, USA
  • 2Lawrence Livermore National Laboratory, Livermore, California 94550, USA
  • 3Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
  • 4Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 92, Iss. 2 — August 2015

Reuse & Permissions
Access Options
CHORUS

Article Available via CHORUS

Download Accepted Manuscript
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review C

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×