Sodium Iodide Detector for Thyroid Counting

The FDA’s Office of the Commissioner is seeking a commercial vendor to supply a 3 × 3 in. LED‑stabilized Sodium Iodide (NaI(Tl)) detector and a compatible digital multichannel analyzer for its Winchester Engineering and Analytical Center thyroid‑counting system. The equipment must meet detailed performance specifications (energy range 30 keV‑3 MeV, resolution >7 %, operating temperature –20 °C to +50 °C, weight < 6 lb, etc.) and be fully compatible with Apex InVivo software and Mirion Osprey hardware. Delivery, installation, training, and acceptance are required at FDA WEAC, 109 Holton St, Winchester, MA, no later than September 15 2026, with a 12‑month warranty beginning upon acceptance. The contract will be a firm‑fixed‑price purchase order valued at approximately $20,000 and awarded on a lowest‑priced‑technically‑acceptable basis. • Provide one 3 × 3 in. LED‑stabilized NaI(Tl) detector (≤ 6 lb, ≤ 3.5 in. dia.) • Provide one digital tube‑based multichannel analyzer with USB & Ethernet outputs • Ensure full compatibility with Apex InVivo and Mirion Osprey systems • Deliver, install, and train FDA staff by 9/15/2026 • Include a 12‑month parts & labor warranty • Submit a detailed, fully‑priced quote by 2 pm EST, 31 Aug 2026.