Dilution Refrigerator

The U.S. Department of Commerce, National Institute of Standards and Technology (NIST) has issued a Sources Sought Notice (AMD-SSN-26-002) to gather information from industry regarding the availability of providers for one dilution refrigerator. This request is for market research to determine an acquisition strategy for NIST's quantum sensors development and quantum information science research in Boulder, Colorado. NIST is particularly interested in the capabilities of small and other than small businesses. The anticipated delivery period for the refrigerator is nine months after the order is received. Interested parties are asked to submit responses by December 23, 2025, to angela.hitt@nist.gov. Responses, limited to ten pages, should include company information, suggestions for the draft Statement of Requirements and evaluation factors, standard commercial pricing, details on safety programs, compliance with regulations, experience with specifications, manufacturing location, and capability to provide the refrigerator and access for government personnel. Small businesses should address compliance with FAR clause 52.219-14, and all respondents should indicate any GSA Schedule or other federal contracts. This notice is not a solicitation or commitment to award a contract.

The National Institute of Standards and Technology (NIST) requires a state-of-the-art dilution refrigerator to support quantum sensor development and quantum information science research. The system must achieve a base temperature of 10 mK or lower, with cooling power of at least 200 microwatts at 100 mK, and minimal vibration. Key technical specifications include 8 coax lines to base temperature with expansion capability, brackets and DC wiring for specific low-noise amplifiers, 48 twisted DC pairs with future expansion, and X-ray, Gamma ray, and optical fiber access. The refrigerator must have a large sample volume (10-inch diameter sphere), automatic slow pump-out and vent, and be cryogen-free with a cooldown time under 24 hours. Automation via Python scripting is required. A fully automated gas handling system, robust dilution unit construction, and calibrated thermometry with temperature control are also essential. Deliverables include a lab layout design within 3 months and the dilution refrigerator within 9 months. Performance tests and inspections will be conducted at NIST in Boulder, CO, to ensure all specifications are met.