Inactive on SAM.gov — responses were due 3 Aug 2026 · Unrestricted (full and open) · Department of Energy (DOE) · Oak Ridge, TN · NAICS 334516 · Solicitation PR449089
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A newer version of this notice has been posted. SAM.gov republished solicitation PR449089 on 27 July 2026. This page is kept because it is a real record, but the current requirement, dates and attachments are on the latest version. Read the latest version →
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SAM.gov marked this notice inactive — responses were due 03 August 2026.
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Description
AMENDMENT 02: Extends Date Offers Due to 08/03/2026. The High Flux Isotope Reactor (HFIR) at Oak Ridge National Laboratory (ORNL) is a high-flux research reactor that, in addition to isotope production, serves as a steady-state neutron source for a suite of neutron scattering instruments. Among these, the General-Purpose Small-Angle Neutron Scattering (GP-SANS) instrument is being upgraded to incorporate incident beam polarization capabilities. This enhancement will enable spin-resolved SANS measurements, allowing for the separation of nuclear and magnetic scattering components and facilitating studies of magnetic order, spin textures, and correlated spin structures. A critical component of this upgrade is the integration of a polarizing cavity, which utilizes magnetized supermirrors or transmission-based polarizers to produce a beam of neutrons in a well-defined spin state prior to their interaction with the sample. This capability is essential for conducting polarization analysis and advanced techniques such as polarization contrast measurements and vector-magnetic SANS. This specification defines requirements for materials of construction, fabrication, inspection, and delivery to the Company of a complete polarizing cavity and magnetic housing assembly. The polarizing cavity and magnetic housing assembly shall be installed at the GP-SANS instrument.
Version history
SAM.gov has posted 7 notices under solicitation PR449089, oldest first.
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