Description
The U.S. Geological Survey (USGS) is seeking a quotation for an in-house gamma-counting system to replace the existing obsolete instrumentation at the USGS Pacific Coastal and Marine Science Center (PCMSC) in Santa Cruz, CA. The new system should include all necessary equipment, instrumentation, lead shield, software packages, and a cryogenic liquid nitrogen recycler. The system must be compatible with the existing lab space and in-house sample vials. The vendor will be responsible for on-site installation, system configuration, software set-up, quality assurance testing, and user training.
• The system must include a high-purity low-background germanium (HPGe) Well Detector for gamma ray counting.
• The system must include a low-background J-type Cryostat with remote preamplifier.
• The system must include a cryogenic liquid nitrogen recycler with a 25-liter capacity.
• The system must include a low background lead shield with 4-inch-thick walls and a graded tin and copper interior liner.
• The system must include a standalone, digital, multi-channel analyzer (MCA) signal processing gamma spectrometer.
• The system must include software packages for gamma analysis and data management.
• The system must be compatible with the Windows 11 operating system.
• The system must be suitable for entry-level users.
• The system must be able to perform detector efficiency calibrations locally without factory assistance.