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Solicitation · PR449089

ORNL High Flux Isotope Reactor GP-SANS Polarizer

Responses due5 days leftAug 3, 2026, 5:00 PM EDT
Buying agencyDepartment of Energy
OfficeOrnl Ut-battelle Llc-doe Contractor
NAICS334516 — Manufacturing
PSC6640
Set-asideNone stated
PostedJul 14, 2026
DeadlineAug 3, 2026, 5:00 PM EDT
Place of performanceOak Ridge, TN, 37830
From the notice

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 an…

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