Theory and application of the coded aperture fuel motion detection system
A fuel motion detection system based on coded aperture imaging has been developed for the Annular Core Research Reactor. Its configuration evolved after investigations were carried out to determine the required system capabilities. The reactor environment, developments in the theory of coded apertures for nuclear radiations and compatibility with prototypical geometries were considered. The system was fabricated and inserted into the ACRR where it has recorded the fuel motion from a single pin subjected to loss of flow accident conditions. In addition, computer simulations have shown that in the reactor environment and for fast data acquisition, coded imaging, particularly with uniformly redundant arrays, offers significant advantages over pinhole camera geometries. The extension of this technique toward imaging of 37-pin bundles and imaging with fast neutrons is also being investigated.
- Research Organization:
- Sandia Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- EY-76-C-04-0789
- OSTI ID:
- 5959005
- Report Number(s):
- SAND-79-0798C; CONF-790816-51
- Country of Publication:
- United States
- Language:
- English
Similar Records
Development of a coded aperture fuel motion diagnostics system for the ACPR (upgrade). [LMFBR]
Coded aperture imaging in many-pin fuel bundles. [LMFBR]
Related Subjects
22 GENERAL STUDIES OF NUCLEAR REACTORS
220600 -- Nuclear Reactor Technology-- Research
Test & Experimental Reactors
220900* -- Nuclear Reactor Technology-- Reactor Safety
ACCIDENTS
ACPR REACTOR
APERTURES
DESIGN
DETECTION
ENRICHED URANIUM REACTORS
FUEL MOTION DETECTION
HOMOGENEOUS REACTORS
HYDRIDE MODERATED REACTORS
IMAGES
LOSS OF FLOW
MIXED SPECTRUM REACTORS
OPENINGS
PERFORMANCE TESTING
PULSED REACTORS
REACTOR ACCIDENTS
REACTORS
RESEARCH AND TEST REACTORS
RESEARCH REACTORS
SOLID HOMOGENEOUS REACTORS
TESTING
WATER COOLED REACTORS
WATER MODERATED REACTORS