Measurement of subcritical reactivity in unsteady state with Digital Time-Series Data Acquisition System using difference filter technique

Autor: Genichiro Wakabayashi, Masaru Matoba, Takeji Sakae, H. Heguri, Y. Yonemura, T. Horiguchi, K. Hashimoto
Rok vydání: 2002
Předmět:
Zdroj: IEEE Transactions on Nuclear Science. 49:2508-2512
ISSN: 1558-1578
0018-9499
DOI: 10.1109/tns.2002.803880
Popis: The Digital Time-Series Data Acquisition System using first-in-first-out (FIFO) memory module has been developed for the monitoring of subcritical reactivity. The system records arriving time of the signal from a neutron detector, and time-series data are saved in a personal computer (PC). Using this system, the measurement of time-series data is carried out more efficiently than that using a conventional multichannel scaler (MCS) system, and it has been applied for the monitoring of subcritical reactivity of the reactor in a steady state using the conventional Feynman-/spl alpha/ technique. In the present work, this system was applied for the monitoring of subcritical reactivity in an unsteady state using the difference filter technique. The test experiment was carried out with the research reactor of Atomic Energy Institute of Kinki University, Japan. From the experimental results, it was shown that the present system was useful for the continuous monitoring of varying subcritical reactivity by application of the difference filter technique.
Databáze: OpenAIRE