SAM #RFP384239

Fabrication and delivery of two 1.3 GHz ERDC superconducting RF cavities

Fermi National Accelerator Laboratory (FNAL), a U.S. Department of Energy facility, is seeking proposals for fabrication and delivery of two custom ERDC superconducting radiofrequency cavities. - Buyer: FNAL; the drawings identify its Technical Division – Design and Drafting. The procurement is described as ERDC work supported by FNAL. - Requested items: Two 9-cell, 1.3 GHz conduction-cooled SRF cavities, plus an FNAL-supplied SENSR GP1 accelerometer for each crated shipment. The parts-and-pricing sheet lists two units of “ERDC Cavity Fabrication.” - OEM/vendor names: SENSR is named in connection with the GP1 accelerometer. No cavity fabricator, reseller, or other supplier is identified by name. - Fabrication scope: Use FNAL-provided niobium and Nb55Ti materials, drawings, and 3D model. The vendor provides planning, drawings, tooling and fixtures, welding, inspections and testing, documentation, packaging, and shipment. - Notable requirements: FNAL approval of the QA plan and fabrication documents before work; dimensional and optical inspection and helium leak checks; protected clean handling; serial numbers; and documented experience fabricating conduction-cooled cavities. Optional pricing is requested for CMM measurements of both cavities and eddy-current scanning of raw niobium. - Drawing-defined components: The assembly and subassembly parts list specifies cavity weldments, half cells, flanges, tubes, HOM components, cooling rings/fins, and stiffening rings, with Fermilab part numbers and quantities detailed below. Requirements include vacuum-tight electron-beam weldments, ultra-high-vacuum cleanliness and handling, weld and concentricity tolerances, and tuning allowances. - Schedule: No fixed period or contract duration is stated; the vendor proposes a fabrication, inspection, and delivery schedule.

Description

Cavity

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