Low Pressure Sieverts System
Category
Characterization Tools
Laboratory
National Laboratory of the Rockies
Capability Expert(s)
Phil Parilla (Philip.Parilla@nlr.gov), Sarah Shulda (Sarah.Shulda@nlr.gov), Karen Heinselman (Karen.Heinselman@nlr.gov)
Description
The National Laboratory of the Rockies has developed a custom Sieverts system for highly accurate gas capacity measurements on small samples (10s of mg) sizes and lower pressures (<5000 Torr). Gas capacity isotherms can be collected at 77K or at any temperature between 0°C and 900°C. The system is extremely useful for mole-counting experiments where gases fixed to the sample (physi- or chemisorption) in vacuum and lower temperatures are released at higher temperatures and counted.
