66--MicroXRF Geochemistry Sensor for attachment to Geotek MSCL-XZ II System
Overview
Buyer
Place of Performance
NAICS
PSC
Set Aside
Original Source
Timeline
Qualification Details
Fit reasons
- NAICS alignment with historical contract wins in similar service areas.
- Scope strongly matches core technical capabilities and delivery model.
Risks
- Past performance thresholds may require one additional teaming partner.
- Potential clarification needed on staffing minimums before bid/no-bid.
Next steps
Validate eligibility requirements, assign capture owner, and schedule partner outreach to confirm teaming strategy before submission planning.
Quick Summary
The US Geological Survey (USGS) is conducting market research through a Sources Sought notice to identify qualified businesses capable of providing a MicroXRF Geochemistry Sensor. This sensor will be integrated into the existing Geotek MSCL-XZ (Mark II) core logging system at the GMEG Science Center's Joint Hyperspectral Analyzer Work Station (JHAWS) at Moffett Field, CA. This is for planning purposes only and is not a request for quote. Responses are due by April 28, 2026, at 0900 PST.
Scope of Work
The required micro-XRF sensor will provide non-destructive, rapid, and spatially precise geochemical analyses of soft-sediment and hard-rock core materials. It must ensure full compatibility with the existing JHAWS platform and integrate with precision stage movements for geochemical element mapping across split-core surfaces with spatial resolutions better than 1 cm. The element detection range should cover Al to U.
Technical Requirements
Key performance standards include:
- X-ray Source: 4 kV to 50 kV, 15 W sealed Rh or Mo target.
- Detector: Large-area SDD detector with spectral resolution of ≥133 eV at Mn Kα.
- Precision Stage: Down-core collimation of at least 0.5 mm; cross-core collimation of at least 5 mm.
- Measurement Cell: Helium-flushed, capable of quantifying low-energy elements (Na, Mg, Si, Al, etc.).
- Software: Must provide full control of X-ray settings, filter positions, spectral analysis and fitting, fundamental parameters calibration, exportable XRF spectra, and the ability to generate element concentration maps.
- Installation: On-site upgrade/installation by Geotek technicians at Moffett Field, CA, including training for USGS personnel. No chiller required; compatible with standard US 110V power.
Contract & Timeline
- Type: Sources Sought / Market Research
- NAICS: 334516 (Analytical Laboratory Instrument)
- PSC: 6640 (Laboratory Equipment And Supplies)
- Set-Aside: None specified
- Response Due: April 28, 2026, 0900 PST (16:00:00Z)
- Published: April 24, 2026
Additional Notes
This announcement is solely for market research to determine acquisition strategy and does not commit the Government to an award. The Government will not pay for costs incurred in preparing responses. Responses, including product data sheets detailing ability to meet technical specifications, must be submitted via email to yangzhi_deng@ios.doi.gov. Hardcopy or web portal submissions will not be accepted.