Cosmogenesis Backgrounds, Experiment Depth and the Solar Neutrino TPC
  A Time Projection Chamber (TPC) is one of the promising candidates to perform unique measurements in solar neutrino physics. Its features will enable it to work at depths of the order of 2000 mwe. This paper describes an estimation of the expected cosmogenic background at different depths including also the background due to fission activation of the TPC material above ground. 
G. Bonvicini, A. Schreiner