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Hirade, Tetsuya; Ando, Hirokazu*; Manabe, Kensuke*; Ueda, Daisuke*
Nuclear Instruments and Methods in Physics Research A, 931, p.100 - 104, 2019/07
Times Cited Count：8 Percentile：66.68(Instruments & Instrumentation)A detector identification method using waveform-shape analysis is proposed. A method for enabling discrimination of detectors by making a characteristic waveform shape for every detector by each own loop circuit on the detector is shown as an example. This method can be applied in many experimental contexts with detectors, making a high counting rate possible. Moreover, detector identification can be used for other important questions such as detector position. As an example, this detector identification method is used to perform positron-annihilation age-momentum correlation measurement with a high temporal resolution and a high counting rate.
-ray measurements in JT-60UKondoh, Takashi; Kusama, Yoshinori; Kimura, Haruyuki; Saigusa, Mikio; Fujii, Tsuneyuki; Moriyama, Shinichi; Nemoto, Masahiro; Tobita, Kenji; Morioka, Atsuhiko; Nagashima, Keisuke; et al.
Journal of Nuclear Materials, 241-243, p.564 - 568, 1997/02
Times Cited Count：12 Percentile：67.93(Materials Science, Multidisciplinary)no abstracts in English
-ray measurement technique under high radiation dose using ruby scintillator and optical fiberIto, Chikara; Yamamoto, Takahiro; Sekine, Takashi; Wakaida, Ikuo; Miyazaki, Nobuyuki*
no journal, ,
no abstracts in English
Ru/
Ce and burnup analysesSato, Shunsuke*; Nauchi, Yasushi*; Hayakawa, Takehito*; Kimura, Yasuhiko; Suyama, Kenya
no journal, ,
We evaluated the activity ratio ofRu to Ce by measurement of polyethylene-transmitted radiation from used nuclear fuel cooled more than 10 years. We confirmed that the ratio could be used for the burnup confirmation because we could obtain good agreement between calculation and experiment.
Hirade, Tetsuya; Ando, Hirokazu*; Manabe, Kensuke*; Ueda, Daisuke*
no journal, ,
Although positron annihilation ray age-momentum correlation (AMOC) measurements can give information that cannot be obtained by other methods, it takes a long time to measure. The time resolution and the counting rate are in a trade-off relationship. We tried to improve the counting rate by increasing detectors. If the position of the detector deviates by 1 mm, it shifts 3 ps on the time axis. Even if multiple detectors are introduced, it is very difficult to match the time information obtained by each detector. Therefore, we have introduced each characteristic waveform to the signal from every detector. It was possible to identify a detector by use of a characteristic shape of waveforms, i.e. every spectrum for each detectors can be obtained. Afterward, every time shift for each spectrum can be calculated and then finally all of the events can be analyzed by correcting time shifts to construct one spectrum. Hence we succeeded to perform high count rate AMOC measurements.
