National Institute of Standards & Technology, Acquisition & Assistance Div., Bldg. 301, Rm B117, Gaithersburg, MD 20899

66 -- HIGH VACUUM LABORATORY FURNACE SYSTEM SOL 53SBNB860112 DUE 081898 POC Joan M. Smith, (301) 975-6458 WEB: NIST Contracts Homepage, http://www.nist.gov/admin/od/contract/contract.htm. E-MAIL: NIST Contracts Office, Contract@nist.gov. The National Institute of Standards and Technology (NIST) has a requirement for a high vacuum laboratory furnace system to be used for routine operation on the backscattering neutron spectrometer at NIST's Center for Neutron Research. The furnace is required to be made of an aluminum alloy, highly transparent to 2 meV neutrons, designed for use under high vacuum (10-6 mbar) and capable of operating at temperatures of at least 1000 degrees C. Long term temperature stability shall not exceed 0.5% of the actual temperature. All internal components in the neutron beam are required to be made of thin niobium foils, including the heating element. The furnace is required to allow samples to be top loaded, be height adjustable, and be able to rotate 360 degrees. The thermal gradients across a cylindrical sample may not exceed 1% of the actual temperature in either the vertical or radial direction. The furnace temperature control unit is required to be fully controllable via a standard computer interface, and equipped with a self adjustment PID algorithm. The furnace is required to fit inside an existing insert in the spectrometer vacuum chamber and be compatible with other existing furnaces at NIST. Complete specifications shall be issued with the Request for Quotation (RFQ).- Quantity: 1 each -- F.O.B. Destination: NIST, Gaithersburg, MD -- Delivery: is desired within 16 weeks ARO. -- All responsible sources may submit a quotation which shall be considered by the agency. RFQs must be made in writing and may be telefaxed to (301) 963-7732. Posted 07/22/98 (W-SN226730). (0203)

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