Monitoring Xenon Capture in Metal Organic Frameworks Using Laser-Induced Breakdown Spectroscopy

Molten salt reactor (MSR) operation will result in the transport of fission gases into the headspace of the reactor where in some designs a cover gas will be circulated to remove certain fission products and maintain an inert atmosphere. The cover gas leaving the reactor core is expected to contain both noble and non-noble gases, aerosols, volatile species, tritium, and radionuclides and their daughters. To remove these radioactive gases, it is necessary to develop a robust off-gas system. Various treatment systems must be staged in series to remove the off-gas constituents from the stream before recirculating the gas back to the headspace of the reactor. Several of these treatment systems are being developed under the MSR program.