He-3 has a high thermal neutron absorption cross section and is used as a converter gas in neutron detector systems. These systems are utilized at major ports around the world to screen freight for nuclear materials. As the demand for these systems increase, neutron detector manufacturers are turning to 10BF3 based detector systems as an alternative to 3He in order to reduce costs and increase detector availability. Linde is the worlds leading supplier of high enrichment, high purity 3He and 10BF3 for neutron detector applications.
Pure xenon and custom xenon gas mixtures are used in detectors for x-rays, gamma rays, and even infrared radiation. The xenon is incorporated into high performance detectors for medical diagnostics, material density profiling, and detection of radiation sources for Homeland Security.Xenon is also being evaluated to indirectly confirm the existence of "dark matter." This dark matter is said to be abundant enough to dominate the universe. Dark matter refers to indirectly observed particles of unknown composition that do not emit or reflect enough electromagnetic radiation, but whose existence can instead be inferred through the detectable effects it has on visible matter