Government Contract | Wisconsin
Cryogen-Free Dilution Refrigerator (UW-MAD) [16-0057]

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Bid Information

Bid Alert No: 00000541324

Bid Title: Cryogen-Free Dilution Refrigerator (UW-MAD) [16-0057]

Agency Bid No. Title: 16-0057

Received Date: 04/13/2016

Close Date: 04/28/2016

Purchase Type: Not Stated

Delivery Point: University of Wisconsin, Madison, Wisconsin

Delivery Date: Not Stated

Special Notices: Bidder Preregistration, Warranty Required


Specifications include, but are not limited to:4.1Dilution unit.a.Cooling power should be above 100 microwatts at a temperature of 0.10 K. Price and/or performance advantages of cooling power options will be considered.b.Base temperature should be approximately 20 mK.4.2A large space, something like a cube 6 on a side that cab be cooled to base temperature, and a volume around that that can be used for items at an intermediate temperature stage, is desired. A description of the available space and the cooling power at each temperature stage should be provided.4.3Cryo-free cryostat.a.Size, cooling power, and vibration levels of the cryocooler should be described. Vendor should (NOT REQUIRED) describe steps taken to minimize coupling of cryocooler vibrations to the sample stage (i.e., bellows-mounted pulse tube head, or copper braid to provide thermal link from cryocooler to stage plates).b.Will there be any limitation to the amount of time the cryostat can be maintained at low temperature?c.All equipment necessary for the operation of the cryocooler should be included.4.4Preference will be given to systems with short cooldown time from room temperature to base temperature. If vendor can provide detailed cooldown curves showing temperatures of all pulse tube and DR stages as a function of time, that would be useful in the evaluation. (NOT REQUIRED)4.5DR gas handling system and circulation pumps should be included.

Bid Related Documents

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Product Code: 41558

Agency Information

Issuing Agency: University of Wisconsin

State: Wisconsin

Agency Type: State and Local

Contact: Jeff Whitman, Purchasing Services Purchasing Services, 21 N. Park Street, Suite 6101, Madison, Wisconsin, 53715

Phone: 608-262-6120

Fax: 608-262-4467




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