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Title: A faster and more reliable data acquisition system for the full performance of the SciCRT

The SciBar Cosmic Ray Telescope (SciCRT) is a massive scintillator tracker to observe cosmic rays at a very high-altitude environment in Mexico. The fully active tracker is based on the Scintillator Bar (SciBar) detector developed as a near detector for the KEK-to-Kamioka long-baseline neutrino oscillation experiment (K2K) in Japan. Since the data acquisition (DAQ) system was developed for the accelerator experiment, we determined to develop a new robust DAQ system to optimize it to our cosmic-ray experiment needs at the top of Mt. Sierra Negra (4600 m). One of our special requirements is to achieve a 10 times faster readout rate. We started to develop a new fast readout back-end board (BEB) based on 100 Mbps SiTCP, a hardware network processor developed for DAQ systems for high energy physics experiments. Then we developed the new BEB which has a potential of 20 times faster than the current one in the case of observing neutrons. Lastly, we installed the new DAQ system including the new BEBs to a part of the SciCRT in July 2015. The system has been operating since then. In this article, we describe the development, the basic performance of the new BEB, the status after the installationmore » in the SciCRT, and the future performance.« less
Authors:
 [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [2] ;  [2] ;  [2] ;  [3] ;  [3] ;  [3] ;  [3] ;  [3] ;  [4] ;  [5] ;  [5] ;  [5] more »;  [6] ;  [7] ;  [8] ;  [9] ;  [10] ;  [10] ;  [10] ;  [10] ;  [10] ;  [10] ;  [10] ;  [10] ;  [11] « less
  1. Nagoya Univ. (Japan). Inst. for Space-Earth Environmental Research
  2. High Energy Accelerator Research Organization (KEK), Tsukuba (Japan)
  3. Shinshu Univ., Asahi, Matsumoto (Japan). Dept. of Physics
  4. Japan Aerospace Exploration Agency, Sagamihara, Kanagawa (Japan). Inst. of Space and Astronautical Science
  5. Chubu Univ., Kasugai (Japan). College of Engineering
  6. Aichi Inst.of Technology, Toyota (Japan)
  7. Japan Atomic Energy Agency (JAEA), Tokai (Japan)
  8. National Defense Academy, Yokosuka, Kanagawa (Japan). Dept. of Earth and Ocean Sciences
  9. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  10. Univ. Nacional Autonoma de Mexico (UNAM), Mexico City (Mexico). Inst. de Geofisica
  11. Univ. Nacional Autonoma de Mexico (UNAM), Mexico City (Mexico). Inst. de Geofisica, Unit Michoacan, Servicio de Clima Espacial Mexico (SCiESMEX)
Publication Date:
Grant/Contract Number:
AC02-76SF00515
Type:
Accepted Manuscript
Journal Name:
Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
Additional Journal Information:
Journal Volume: 857; Journal Issue: C; Journal ID: ISSN 0168-9002
Publisher:
Elsevier
Research Org:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org:
USDOE; Japan Society for the Promotion of Science (JSPS)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; Solar Neutrons; SiTCP; SciCRT
OSTI Identifier:
1367843