SAM #RFP384239

Fabrication and delivery of two 1.3 GHz conduction-cooled SRF cavities

Fermilab is seeking two custom-fabricated 1.3 GHz superconducting radiofrequency cavities and associated fabrication, inspection, and delivery services. - Government buyer: Fermi National Accelerator Laboratory (Fermilab), U.S. Department of Energy; Technical Division - Design and Drafting. The procurement is supported by FNAL. - Named organizations and suppliers: Fermi National Accelerator Laboratory/FNAL and Fermi Forward Discovery Group, LLC (FermiForward) are named. SENSR is identified as the supplier/manufacturer of the GP1 Accelerometer. No cavity fabricator or other prospective vendor is named. - Main products: Two ERDC 9-cell, 1.3 GHz conduction-cooled superconducting radiofrequency (SRF) cavities. The parts-and-pricing attachment also lists two units of ERDC Cavity Fabrication. The drawings provide a detailed bill of materials with Fermilab part numbers, listed below. - Fabrication and delivery: The vendor must plan and fabricate the cavities using Fermilab-supplied niobium and Nb55Ti, drawings, and a 3D STEP model. Work includes developing fabrication drawings and plans, tooling and welding fixtures, electron-beam welding parameters, inspections and testing, documentation, protected packaging, and shipment to FNAL. - Key technical requirements: Cavities require dimensional and optical inspections and helium leak checks, with vacuum-tight weldments, ultra-high-vacuum cleanliness and handling, specified weld and concentricity tolerances, tuning allowances, and serialization of the end disk flange. Vendors must document prior experience fabricating conduction-cooled cavities. Each crated shipment must include a FNAL-supplied SENSR GP1 Accelerometer. - Optional services: Proposal options are requested for CMM measurements of both completed cavities and eddy-current scanning of raw niobium sheets, including procedures for the scanning. - Additional attachment requirement: FermiForward's subcontractor annual representations and certifications form covers company and compliance information. Its certifications are effective for 12 months from signature, and changes must be reported within 15 days. - Schedule: No fixed performance dates or duration are stated. The vendor is to propose the fabrication, inspection, and delivery schedule for FNAL review.

Description

Cavity

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