Design of an Online Fission Gas Monitoring System for Post-irradiation Examination Heating Tests of Coated Fuel Particles for High-Temperature Gas-Cooled Reactors
A new Fission Gas Monitoring System (FGMS) has been designed at the Idaho National Laboratory (INL) for use of monitoring online fission gas-released during fuel heating tests. The FGMS will be used with the Fuel Accident Condition Simulator (FACS) at the Hot Fuels Examination Facility (HFEF) located at the Materials and Fuels Complex (MFC) within the INL campus. Preselected Advanced Gas Reactor (AGR) TRISO (Tri-isotropic) fuel compacts will undergo testing to assess the fission product retention characteristics under high temperature accident conditions. The FACS furnace will heat the fuel to temperatures up to 2,000ºC in a helium atmosphere. Released fission products such as Kr and Xe isotopes will be transported downstream to the FGMS where they will accumulate in cryogenically cooledcollection traps and monitored with High Purity Germanium (HPGe) detectors during the heating process. Special INL developed software will be used to monitor the accumulated fission products and will report data in near real-time. These data will then be reported in a form that can be readily available to the INL reporting database. This paper describes the details of the FGMS design, the control and acqusition software, system calibration, and the expected performance of the FGMS. Preliminary online data may be available for presentation at the High Temperature Reactor (HTR) conference.
- Research Organization:
- Idaho National Lab. (INL), Idaho Falls, ID (United States)
- Sponsoring Organization:
- DOE - NE
- DOE Contract Number:
- DE-AC07-05ID14517
- OSTI ID:
- 1009148
- Report Number(s):
- INL/CON-10-19967; TRN: US1101388
- Resource Relation:
- Conference: International Conference on High Temperature Reactor Technology HTR 2010,Prague, Czech Repub,10/18/2010,10/20/2010
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ACCIDENTS
CALIBRATION
COATED FUEL PARTICLES
DESIGN
FISSION
FISSION PRODUCTS
FURNACES
GERMANIUM
HEATING
HELIUM
IDAHO
MONITORING
MONITORS
PERFORMANCE
POST-IRRADIATION EXAMINATION
REACTOR TECHNOLOGY
RETENTION
SIMULATORS
TESTING
NGNP+TDO+VHTR+R&D+Fuel+AGR-1+AGR-2+Irradiation+Fis