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          narita_at_iwate_u.ac.jp
        Kentaro   Negishi         knegishi_at_iwate_u.ac.jp
        Kei-ichi  Terasawa        g0320107_at_iwate-u.ac.jp
        Ryoto     Nodagashira     g0321135_at_iwate-u.ac.jp
        Hiroki    Kikuchi         s0318009_at_iwate-u.ac.jp
        Yukiya    Murakami        s0318032_at_iwate-u.ac.jp
        Hiroki    Wagatsuma       s0318035_at_iwate-u.ac.jp
        Kanako    Watanabe        s0319033_at_iwate-u.ac.jp
        Aiko      Shoji           shojia_at_iwate-u.ac.jp
 
    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         takashi_at_cc.kogakuin.ac.jp

    Kindai Univ.:
        Yukihiro Kato             katoy_at_phys.kindai.ac.jp

    Hiroshima Univ.:
        Tohru    Takahashi        tohru-takahashi_at_hiroshima-u.ac.jp

    Saga Univ.:
        Akira    Sugiyama         sugiyama_at_cc.saga-u.ac.jp
        Takahiro Fusayasu         fusayasu_at_cc.saga-u.ac.jp
        ...

    MPI:
        Ronald Dean Settles       settles_at_mppmu.mpg.de   

        IHEP:

                 Huirong Qi                                        qihr_at_ihep.ac.cn

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