Upgrade of the Cold Neutron Imaging Instrument Tender - 142110382

Procurement Summary

Country: USA

Summary: Upgrade of the Cold Neutron Imaging Instrument, Phase Grating Roll Alignment System

Deadline: 09 Jun 2026

Posting Date: 27 May 2026

Other Information

Notice Type: Tender

TOT Ref.No.: 142110382

Document Ref. No.: NIST-AMD-NCNR-SSN26-04

Competition: ICB

Financier: Self Financed

Purchaser Ownership: Public

Tender Value: Refer Document

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Tender Details

***THIS IS A SOURCES SOUGHT NOTICE***
BACKGROUND
The National Institute of Standards and Technology (NIST) is seeking information from sources that may be capable of providing three high precision rotation stages (resolution better than 0.00005 degrees) with a clear aperture to allow the beam to pass unattenuated and required cabling, control hardware, and control software under the authority of FAR 12. The North American Industry Classification System (NAICS) code for this acquisition is 334516 Analytical Laboratory Instrument Manufacturing.
The NIST neutron imaging team, in the Radiation Physics Division of the Physical Measurement Laboratory, is developing a far-field grating neutron interferometer to measure the projection of the pair correlation function, G(Z), of a sample of interest. This interferometer geometry requires precision alignment of 3 gratings about the roll direction of the neutron beam. Since G(Z) is a vector quantity, aligned perpendicular to the grating direction, the grating alignment stages need to be able to rotate a full 360°, with high resolution. The gratings are lines etched into silicon wafers, where the period of the lines is of order 1 micrometer and the wafers are 100 mm in diameter. The mass of a grating, including a holder is of order 100 g. The interferometer pattern is measured by translating one of the gratings, so that that mass of the alignment system must be kept to as low as achievable. For control hardware, the separation of two of the gratings along the beam ranges from 1 mm to 300 mm. The third grating is separated by up to 5 m.
Specifications for three high precision rotation stages (resolution better than 0.00005 degrees) with a clear aperture to allow the beam to pass unattenuated and required cabling, control hardware, and control software.
The rotation stage shall have an angular position resolution less than 0.00001 degrees (lower is better).
The rotation stage shall have a central clear apertur...
Notice ID: nist-amd-ncnr-ssn26-04

Department/Ind. Agency: commerce, department of

Sub-tier: national institute of standards and technology

Office: dept of commerce nist

Product Service Code: 6695 - combination and miscellaneous instruments

NAICS Code: 334516 - Analytical Laboratory Instrument Manufacturing

Inactive Dates: jun 24, 2026

Inactive Policy: 15 days after response date

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