Laboratory

Computing and Network Team

Laboratory Head
Takashi ICHIHARAD.Sci.
  • 1981年京都大学理学部卒業
  • 1985年京都大学大学院理学研究科物理学第二専攻 修了
  • 1985年理化学研究所 放射線研究室 研究員補
  • 1986年理化学研究所 放射線研究室 研究員
  • 1987年京都大学理学博士
  • 1995年理化学研究所 放射線研究室 先任研究員
  • 1998年理化学研究所 放射線研究室 副主任研究員
  • 1998年理研BNL研究センター実験研究グループ研究員(現職)
  • 2002年理化学研究所 計算機ネットワーク管理チーム チームリーダー
  • 2004年理化学研究所 本林重イオン研究室 副主任研究員
  • 2006年理化学研究所 仁科加速器センター 櫻井RI物理研究室 副主任研究員(現職)
    理化学研究所 仁科加速器センター 情報処理技術チーム チームリーダー(現職)

Research Areas

This team is in charge of development, management and operation of the computing and network environment, mail and information servers and data acquisition system, and management of the information security. We are operating Linux/Unix NIS/NFS cluster system for the data analysis of the experiments and general computing. We are operating mail server of Nishina Center which is capable of tagging spam mails and isolating virus-infected mail. Encrypted communications with the mail server enables us the secure and stable E-mail access from the remote place. We are operating several information servers such as WWW servers, Wiki servers, Groupware servers, Windows-Media and Quick-Time streaming servers, and an anonymous FTP server (ftp.riken.jp). We are developing a data-acquisition (DAQ) system for the RIBF. This DAQ system has functions of network-distributed data processing, hierarchical event building and parallel readout which are achieved with newly developed software and commodity hardware. This system merges data taken by different DAQ systems based on the time stamp.This DAQ system is both versatile and scalable, allowing it to meet the various requirements for RIBF experiments.

Research Subject

  1. Development, management and operation of the computing for research
  2. Development, management and operation of the mail and information servers
  3. Development, management and operation of the data acquisition system
  4. Development, management and operation of the network environment
  5. Management of the information security

List of Selected Publications

  1. T. Ichihara et al.:
    "Isovector Quadrupole resonance observed in the 60Ni(13C,13N)60Co Reaction at E/A=100 MeV"
    Phys, Rev. Lett. 89 142501 (2002)
  2. H. Baba, T. Ichihara, T. Ohnishi, S. Takeuchi, K. Yoshida, Y. Watanabe, S. Ota, and S. Shimoura.:
    "New data acquisition system for the RIKEN Radioactive Isotope Beam Facility"
    Nucl. Instru. Method. A616 (2010) 65-68
  3. H. Baba, T. Ichihara, T. Ohnishi, S. Takeuchi, K. Yoshida, Y. Watanabe, S. Ota, S. Shimoura, K. Yoshinaga.:
    "Time-stamping system for nuclear physics experiments at RIKEN RIBF"
    Nucl. Instru. Method. A777 (2015) 75-79
  4. T. Ichihara,Y. Watanabe, K.Yoshida, and A.Yoshida.:
    "Computing and Network environment at RIKEN Nishina Center"
    RIKEN Accel. Prog. Rep. 49 p.205 (2016)
  5. PHENIX Collaboration (A. Adare et al.).:
    "Cross section and transverse single-spin asymmetry of single muons from open heavy flavor decays in polarized p+p collisions at √s =200 GeV"
    Phys. Rev. D 95, 112001 (2017)
  6. PHENIX Collaboration (A. Adare et al.).:
    "Measurement of transverse-single-spin asymmetries for midrapidity and forward-rapidity production of hadrons in polarized p+p collisions at √s =200 and 62.4 GeV"
    Phys.Rev. D90 (2014) 1, 012006
  7. PHENIX Collaboration (A. Adare et al.).:
    "Inclusive cross section and single transverse spin asymmetry for very forward neutron production in polarized p+p collisions at sqrt{s}=200  GeV"
    Phys.Rev. D88 (2013) 3, 032006
  8. PHENIX Collaboration (A. Adare (Colorado U.) et al.).:
    "Gluon-Spin Contribution to the Proton Spin from the Double-Helicity Asymmetry in Inclusive π0 Production in Polarized p+p Collisions at √s=200  GeV"
    Phys. Rev. Lett. 103 (2009), 012003
  9. PHENIX Collaboration (Stephen Scott Adler et al.):
    "Measurement of direct photon production in p + p collisions at √s = 200-GeV."
    Phys. Rev. Lett. 98 012002 (2007)
  10. PHENIX Collaboration (Adcox, K. et al.):
    "Suppression of hadrons with large transverse momentum in central Au+Au collisions at s(NN)**(1/2) = 130-GeV"
    Phys.Rev.Lett., 88 (2002), 022301

 

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