Cosmogenic-neutron activation ofTeO2and implications for neutrinoless double-βdecay experiments

B. S. Wang, E. B. Norman, N. D. Scielzo, A. R. Smith, K. J. Thomas, S. A. Wender
2015 Physical Review C  
Flux-averaged cross sections for cosmogenic-neutron activation of natural tellurium were measured using a neutron beam containing neutrons of kinetic energies up to $\sim$800 MeV, and having an energy spectrum similar to that of cosmic-ray neutrons at sea-level. Analysis of the radioisotopes produced reveals that 110mAg will be a dominant contributor to the cosmogenic-activation background in experiments searching for neutrinoless double-beta decay of 130Te, such as CUORE and SNO+. An estimate
more » ... 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 semi-empirical cross-section calculations.
doi:10.1103/physrevc.92.024620 fatcat:ianxdoozd5hylhr3mr7cb5fmem