Title :
Use of higher order signal moments and high speed digital sampling technique for neutron flux measurements [reactor]
Author :
Baers, L.B. ; Gutierrez, T. Rivero ; Mendoza, R. A Carrillo ; Santana, G.J.
Author_Institution :
Tech. Res. Centre of Finland, Espoo, Finland
Abstract :
The second (conventional variance or Campbell signal) <xx >, <yy>, <xy>, the third <xxx>, <xy <yxy>, and the modified fourth order <xyxy>-3*<xy etc. central signal moments associated with the currents (i1 , i2) from two electrodes of an ex-core neutron sensitive fission detector (W8073, RS-P6-1608-110) have been measured versus the reactor power of the 1-MW TRIGA reactor in Mexico City. The suppression of background noise is improved and the lower limit of the measurement range is extended as the order of moment is increased, in agreement with theory (see L.B. Baers, 1989)
Keywords :
digital signals; fission counters; fission reactor core control and monitoring; neutron flux; signal processing; Campbell signal; TRIGA reactor; W8073; background noise; ex-core neutron sensitive fission detector; high speed digital sampling; higher order signal moments; neutron flux measurements; variance; Background noise; Cities and towns; Current measurement; Detectors; Electrodes; Inductors; Neutrons; Noise measurement; Power measurement; Sampling methods;
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference, 1992., Conference Record of the 1992 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-0884-0
DOI :
10.1109/NSSMIC.1992.301546
