Lawrence Berkeley National Laboratory is conducting market research to identify sources capable of fabricating and delivering an external veto tank for the Eos neutrino detector. LBNL has developed a ... Lawrence Berkeley National Laboratory is conducting market research to identify sources capable of fabricating and delivering an external veto tank for the Eos neutrino detector. LBNL has developed a preliminary design and welcomes supplier input on materials, fabrication methods, and practical design refinements. Please see the attached RFI document and drawings for details and instructions.