NDLI: The new front-end electronics for the Super-Kamiokande experiment

Content Provider	IEEE Xplore Digital Library
Author	Nishino, H. Awai, K. Hayato, Y. Kaneyuki, K. Nakayama, S. Okumura, K. Shiozawa, M. Takeda, A. Arai, Y. Ishikawa, K. Minegishi, A.
Copyright Year	2007
Description	Author affiliation: Univ. of Tokyo, Chiba (Nishino, H.; Awai, K.; Hayato, Y.; Kaneyuki, K.; Nakayama, S.; Okumura, K.; Shiozawa, M.; Takeda, A.)
Abstract	Super-Kamiokande is a ring imaging water Cherenkov detector for astro-particle physics that consists of 50 kton pure water and about 13000 photomultiplier tubes (PMTs). We are planning to upgrade all the front-end electronics in next year. By high speed signal processing electronics, we will record all the hits of all the PMTs without any hardware filtering, aiming observations of much fainter signals of the supernova relic neutrinos, lower energy (~ 3 MeV) solar neutrinos, neutrino burst from nearby galactic supernova, and so on. The energy resolutions of multi-GeV atmospheric neutrino events will also be improved by the electronics. The new front-end electronics is based on charge to time converters (QTCs) and multi-hit TDCs. TCP/IP based readout channel is implemented to handle large amounts of data. We have developed a custom ASIC QTC and evaluated the characteristics of the chip and the prototypical board; high-speed (1 MHz cycle), high sensitivity for single photo- electron signal, good charge (0.1 pC RMS) and timing (0.3 ns RMS) responses, and wide charge dynamic range (2500 pC). In this paper, the design and the performance of the front-end board are described.
Starting Page	127
Ending Page	132
File Size	531894
Page Count	6
File Format	PDF
ISBN	9781424409228
ISSN	10957863
DOI	10.1109/NSSMIC.2007.4436301
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-10-26
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Neutrino sources Signal processing Detectors Physics Photomultipliers Hardware Filtering Energy resolution TCPIP Application specific integrated circuits
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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