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Your search keyword '"Shiozawa, M"' showing total 19 results
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19 results on '"Shiozawa, M"'

4. Commissioning of the new electronics and online system for the Super-Kamiokande experiment

Author

Yamada, S., primary, Awai, K., additional, Hayato, Y., additional, Kaneyuki, K., additional, Kouzuma, Y., additional, Nakayama, S., additional, Nishino, H., additional, Okumura, K., additional, Obayashi, Y., additional, Shimizu, Y., additional, Shiozawa, M., additional, Takeda, A., additional, Yokozawa, T., additional, Koshio, Y., additional, Moriyama, S., additional, Heng, Y., additional, Chen, S., additional, Yang, B., additional, Tanaka, T., additional, Arai, Y., additional, Ishikawa, K., additional, Minegishi, A., additional, and Uchida, T., additional

Published
2009
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11. Development of New Data Acquisition System at Super-Kamiokande for Nearby Supernova Bursts.

Author

Tomura, T., Hayato, Y., Ikeno, M., Nakahata, M., Nakayama, S., Obayashi, Y., Okumura, K., Shiozawa, M., Suzuki, S. Y., Uchida, T., Yamada, S., and Yokozawa, T.

Subjects
DATA acquisition systems, CHERENKOV counters, SUPERNOVAE, NEUTRINO detectors, LUMINOSITY
Abstract

Super-Kamiokande (SK), a 50-kiloton water Cherenkov detector, is one of the most sensitive neutrino detectors. SK can be used also for supernova observations by detecting neutrinos generated at supernova. In order to improve the performance of the detector for supernovae, we are developing two new features, one for recording all information within one minute and the other for recording calorimetrical information for nearby supernovae. [ABSTRACT FROM AUTHOR]

Published
2013
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12. Commissioning of the New Electronics and Online System for the Super-Kamiokande Experiment.

Author

Yamada, S., Awai, K., Hayato, Y., Kaneyuki, K., Kouzuma, Y., Nakayama, S., Nishino, H., Okumura, K., Obayashi, Y., Shimizu, Y., Shiozawa, M., Takeda, A., Heng, Y., Yang, B., Chen, S., Tanaka, T., Yokozawa, T., Koshio, Y., Moriyama, S., and Arai, Y.

Subjects
DETECTORS, ENGINEERING instruments, SENSOR networks, NEUTRINOS, ETHERNET
Abstract

The Super-Kamiokande detector is a ring imaging Cherenkov detector for neutrino physics and proton-decay search and consists of 50 000 tons of pure water equipped with about 13 000 photo-multipliers. The old front-end electronics and online system running for more than one decade were all upgraded in September, 2008 and the data acquisition was started successfully. The new front-end electronics is based on a charge to time converter and a multi-hit Time to Digital converter. TCP/IP based readout channel is implemented to handle large amounts of data. In the new data acquisition scheme, the hardware event-trigger for the data reduction is replaced by processing all the hits in the online farm, so that we are able to lower the threshold of the detection energy for solar neutrino and analyze consecutive events whose time interval is too long to detect in the previous system. To make the new online system to be capable of processing larger dataflow of up to 470 MB/s, we utilize Gigabit and 10-Gigabit Ethernet technologies and distribute the load over Linux PCs to handle a large amount of data. In this paper, we will describe the design and performance of the new system in the commissioning. [ABSTRACT FROM AUTHOR]

Published
2010
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