SAM #BZ-2027-01

Market research for a 6,250-gallon Eos detector veto tank assembly

Lawrence Berkeley National Laboratory is seeking supplier input on a custom water tank assembly for the Eos neutrino detector at Oak Ridge National Laboratory. - Government buyer and project - U.S. Department of Energy; University of California, Lawrence Berkeley National Laboratory (LBNL) Procurement is conducting the market research. - The tank is for the Eos project at Oak Ridge National Laboratory’s Spallation Neutron Source (SNS). - Product requested - One external veto tank assembly, approximately 6,250 gallons, surrounding the existing EOS tank and detectors; fabrication and delivery are requested. - Drawing references: EOS-E-0202 and EOS-E-0203. The firm tank dimensions are specified in the drawings; the envelope drawing notes a 147.38-inch tank inside diameter. No product part number is provided. - Key requirements and design considerations - The tank must support the water-filled EOS tank load of 51,858 lb through its bottom to the SNS Hall floor, and meet seismic requirements for Oak Ridge, Tennessee, with suitable floor anchorage and interfaces. - It must contain pure water under nitrogen cover gas, be gas-tight, opaque, and light-tight, and have a white interior with at least 95% reflectivity over 350–500 nm. - Carbon steel construction is to meet ANSI/AWWA D100-21; stainless steel 304 is shown on a drawing, while final material remains open. Suppliers are asked to assess FRP fiberglass or an equivalent lower-cost option and applicable material codes. - The lid needs gas and water connections and access ports. Gasket segmentation and cable-sealing details, photomultiplier-tube support features, and some other design details remain to be finalized. Lifting points must suit the selected material. - Companies and suppliers mentioned - No tank manufacturer or fabricator is identified. Bartoszek Engineering is named on the envelope drawing; the procurement materials do not identify it as the tank manufacturer. - OEMs: None specified.

Description

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. Additional Links:Eos at LBNL

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