High-precision X-ray beamline slits for integration into a custom-built X-ray reflectometer system

NASA’s Marshall Space Flight Center requires two custom, high‑precision, vacuum‑compatible X‑ray beamline slit assemblies for a new reflectometer system. The effort calls for a 4‑blade slit (30 mm × 30 mm aperture, 1 µm step, tungsten‑carbide blades, DN100/40CF flange) and a 2‑blade slit (8 mm × 8 mm aperture, 1.016 µm/0.508 µm steps, tungsten‑carbide blades). The vendor must design, fabricate, test, and deliver both assemblies, ensuring ultra‑high‑vacuum compatibility (< 1 µbar) and providing integration support. Delivery is expected within 6–8 weeks of contract award, with work performed off‑site and shipped to MSFC, Huntsville, AL. • Precise mechanical motion (≤ 1 µm positioning) and ultra‑high‑vacuum (≤ 1 × 10⁻⁶ mbar) requirements. • Custom tungsten‑carbide blades with specific knife‑edge angles (0.5° and 2°). • Delivery to NASA Marshall Space Flight Center within ~2 months; no on‑site construction required. • Sole‑source intent toward JJ X‑RAY A/S, but capability statements are being collected to assess competitive options.