Sodium Iodide Detector for Thyroid Counting

This is a combined synopsis/solicitation for commercial products and commercial services prepared in accordance with the format in FAR 12.6, as supplemented with additional information included in this notice. This announcement constitutes the only solicitation; proposals are being requested, and a written solicitation will not be issued separately.

Solicitation No.: 75F40126Q00375 
Contracting Activity: Food and Drug Administration (FDA)
Office/Center: Office of the Commissioner (OC)
Acquisition Type: Commercial Product
Solicitation Type: Request for Quotation (RFQ)
Contract Type: Firm-Fixed-Price Purchase Order
Estimated Value: $20,000
Required Delivery: September 15, 2026

DELIVERABLE:

1. 3X3 LED Temperature stabilized Sodium Iodide Probe compatible with Mirion Osprey Multi Channel Analyzer

Delivery Date: 9/15/2026

2. Digital Tube Based Multichannel Analyzer with USB and Ethernet output

Delivery Date: 09/15/2026

Salient Characteristics

The equipment offered shall meet or exceed all requirements listed below.

Detector Characteristics

• 3”X 3” NaI(Tl) LED Stabilized Scintillation Detector
• Energy Range 30 keV to 3 MeV
• Resolution >7%
• Available with generic efficiency characterization
• OPERATING HUMIDITY – 85% non-condensing
• OPERATING TEMPERATURE – -20 to +50 °C (-4 to 122 °F).
• Must be compatible and seamlessly compatible with Apex InVivo Software and Mirion Osprey Multichannel Digital Analyzer
• Diameter less than 3.5”
• Weight < 6 lbs

Multi-Channel Digital Analyzer Characteristics

• Includes HVPS, Preamplifier and Digital MCA
• Gain Coarse Gain: x1, x2, x4, x8 software programmable
• Fine Gain: x1 – x5 software programmable
• Total Gain: Product of Fine Gain and Coarse Gain, x1 – x40
• ADC: ADC 14-Bit 20 MHz Sampling
• ULD/LLD ULD: 0% to 100% of Full Scale software programmable
• LLD: 0% to 100% of Full Scale software programmable
• Detector Voltage: HVPS 0 to +1300 V dc: 100 V/s ramping on power up and down
• Shaping DSP Based Trapezoidal shaping filter operating at 80 MHz
• Rise Time: 0.2 μs – 5 μs in 200 ns steps. Default: 1 μs for NaI probe
• Flat Top: 0 to 3 μs in 100 ns steps. Default: 1 μs for NaI probe
• Digital Spectrum Stabilization
• Automatic Baseline Restore
• Automatic Fast Discriminator threshold
• Seamlessly compatible with Apex InVivo Software
• USB 2.0 and Ethernet 10/100BaseTX Output
• 14 pin and 8 pin PMT socket compatible
• Diameter less than 3.5”
• Weight < 6 lbs
• ACQUISITION MODES
  • PHA PHA Channels: 256 to 2048 Channels, supports two memory groups of up to 2048 channels each
  • Preset: ROI Counts (Integral), Real or Live Time timers
  • Real and Live Time Resolution: 0.01 s
  • Preset Time: 0 to >4 x 107 s
  • Control: Internal or External Start/Stop control
  • LTC accuracy: 5% (3% typical) up to 50 kcps
• MCS
  • MCS Dwell range: 1 μs to 999 seconds in 1 μs steps
  • Sweep range: 1 to 232 -1
  • Preset Sweep Counter: 0 to 232 -1 Sweeps (0 implies "Forever")
  • MCS input selection: PHA ROI, external TTL or Fast Discriminator
  • Dwell selection: internal or external
  • MCS Channels: 256 to 2048 Channels, supports two memory groups of up to 2048 channels each
• 8192 Channels Configurable as two groups of 2048, 1024, 512 or 256 channels for PHA and MCS with 32 bits per channel
• Integral Non-linearity: ±0.025% of full scale over the top 99% of the selected range
• Differential Non-linearity: ±1% over the top 99% of the range including the effects from integral non-linearity
• Gain Drift: <75 ppm/°C after 15 minutes of operation
• Incoming Count Rate (ICR): >250 K cps ICR if not limited by probe/detector
• Short Circuit Protection
• High Voltage Power Supply
  • OUTPUT: 0-1300 V at 50 μA max
  • RIPPLE: 1 mV — ACCURACY: 3% Full Scale
  • SETTING RESOLUTION: 14-bit (1/16 384)

WARRANTY AND SUPPORT

The Contractor shall provide a minimum 12-calendar-month warranty covering all parts and labor.

The warranty period shall begin on the date of formal Government acceptance.

Warranty service shall include repair or replacement of defective components necessary to maintain operation of the delivered system.

Review the attached document for complete description of the requirement.