Welcome to the LCTPC Japan Home Page

The LCTPC Japan group is developing a Micro-Pattern-Gas-Detector (MPGD) readout TPC for the future linear collider in the "LCTPC" collaboration, which has an Asian subset "LCTPC Asia".

Our Activities

Our R&D program covers the design, prototyping, and construction of a large prototype TPC for linear collider experiments as well as basic studies using a small prototype TPC to help better understand fundamental processes in the TPC. Our current focus is on R&D of GEM (Gas Electron Multiplier) modules.

• GEM modules
• Readout electronics (S-ALTRO)
• 2-Phase CO2 cooling
• Positive Ion studies (primay and backdrift)
• Positive ion gating
• Tracking software for non-uniform magnetic field
• Gas studies
• Beam tests
• Laser test bench

Members (to be updated)

      Iwate Univ.:
        Shinya  Narita
        Kentaro Negishi
        Aiko    Shoji
　　　　 Kaito　　Tsukioka
      　Keiichi　Terasawa
　　　 　Atsushi　Ito
　　　　 Ryoto　  Nodagashira
　　　 　Reo　　  Matsuoka
        ...
    KEK:
        Keisuke  Fujii 		keisuke.fujii_at_kek.jp
	Makoto   Kobayashi 	kobayasi_at_post.kek.jp
	Takeshi  Matsuda 	matsuda_at_post.kek.jp
        Tomohisa Ogawa          ogawat_at_post.kek.jp
        Yumi     Aoki           yumia_at_post.kek.jp
        Takahiro Mizuno         mizunot_at_post.kek.jp
        Keita    Yumino         yumino_at_post.kek.jp
　　 　  Jurina 　Nakajima　　　　 jurina_at_post.kek.jp

    Kogakuin Univ.:
        Takashi  Watanabe

    Kindai Univ.:
        Yukihiro Kato

    Hiroshima Univ.:
        Tohru    Takahashi

    Saga Univ.:
        Akira    Sugiyama
        Takahiro Fusayasu
        ...

    MPI:
        Ron      Settles

Library

Lectures / Notes

• "Basic Physics behand Operation of TPC" by K.Fujii (lecture given originally at TPC School on Jan. 7-11, 2008 in Beijing):
  • Part I: Fundamental Processes in TPC - Ionization, Electron Transport, Gas Amplification, Signal Generation - (pdf: 51MB)
  • Part II: Application to MPGD Readout TPC - Coordinate Measurements (revised on Jan. 11, 2016) (pdf: 13MB)
• Effects of Ionization Statistics and Gas Gain Fluctuation on Charge Centroid (Notes by K.Fujii on Ryo's thesis work) (pdf: 160kB)

Talks

• "Time Stamping - CDC/TPC Comparison Studies -", LC-TPC TPC R&D Meeting (pdf: 11.3MB) by K.Fujii
• "Towards the Final Design of a TPC for the ILD Detector", TYL/FKPPL Meeting, June, 2013, Seoul (ppt: 27MB, pdf: 3.7MB ) by K.Fujii

Publications

Gallery

• 2013/02/18-22  Analysis Week at Saclay