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Realisation of 4D Semiconductor Tracker with Fine Spatial and Time Resolutions

Research Project

Project/Area Number 19H04393
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 80040:Quantum beam science-related
Research InstitutionUniversity of Tsukuba

Principal Investigator

Hara Kazuhiko  筑波大学, 数理物質系, 准教授 (20218613)

Co-Investigator(Kenkyū-buntansha) 中村 浩二  大学共同利用機関法人高エネルギー加速器研究機構, 素粒子原子核研究所, 助教 (00554479)
海野 義信  大学共同利用機関法人高エネルギー加速器研究機構, その他部局等, 名誉教授 (40151956)
Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥17,160,000 (Direct Cost: ¥13,200,000、Indirect Cost: ¥3,960,000)
Fiscal Year 2022: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2021: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2020: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2019: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
KeywordsAC-LGAD / 4次元飛跡検出器 / 半導体センサー / アバランシェ増幅 / 部分活性化ボロン / 4次元検出器 / シリコン検出器 / 高時間分解能 / LGAD / 4次元飛跡検出 / 高時間分解能半導体 / 高時間分解能半導体センサー / 高位置分解能 / 半導体検出器 / 素粒子実験 / TCAD / 電極分割
Outline of Research at the Start

半導体検出器は優れた空間分解能が特長で、多くの素粒子実験で用いられてきました。我々は既に、アバランシェ増幅機能をもつLGADにより30ps程度の優れた時間分解能が達成できることを示しました。そこで、LGADの優れた時間分解能を併せもった4次元飛跡検出器を実現することができれば、空間分解能のみでは対応できない将来の高輝度加速器実験でも飛跡再構成が可能となり、また、再構成時間も短縮される再構成法概念の革新がもたらされると期待できます。
本研究では、一様な増幅率をもつ高性能LGADの設計・試作および高時間分解能読出しエレクトロニクスを開発することで4次元飛跡検出器実現のための基礎研究を進めます。

Outline of Final Research Achievements

A new type of AC-LGAD detector is to add high temporal charachteristics to the superior spatial performance achievable by semiconductor detectors. Such a device, capable of measuring space and time, 4-dim. detector, is a good canidate for tracking sensors in future high luminosity collider experiments where the particle density will become high.
In the AC-LGAD detector, AC-coupled readout electrodes are segemeted over a uniform avalanche gain layer. The resistivity of the gain layer and the AC coupling capaciatance are the main sensor parameters, together with the sensor thickness, which have been optimaized. As a result, pixel sensors with pixel down to 100 μm square and strip sensors with a pitch of 80 μm have successfully induced large enough signals for travesing β rays.
Radiation hardening of LGAD has been investigated by a method of "partially activated boron", which turns out to be promising.

Academic Significance and Societal Importance of the Research Achievements

素粒子加速器の高輝度化に応じて、飛跡検出器の電極サイズは縮小され次期の高輝度LHC実験では50μm角のピクセルセンサーが使用される。将来の一層の高輝度化には、これ以上の細分化は限界であり、空間分解能に加えて時間分解能を飛跡検出に併せ持たせることが有効である。時間情報から正確かつ高速な飛跡再構成、速度の遅い重い粒子の検出が可能になる。
LGADは30ps程度の時間分解能を実現できる検出器であるが、これをAC-LGAD方式により優れた空間分解能を併せ持たせ、実用レベルの4次元検出器を世界で初めて実現した。放射線耐性の向上は必須であるが、部分活性化ボロン法により向上を示唆する結果も得た。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (40 results)

All 2023 2022 2021 2020 2019 Other

All Int'l Joint Research (7 results) Journal Article (7 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 6 results,  Open Access: 3 results) Presentation (22 results) (of which Int'l Joint Research: 7 results,  Invited: 1 results) Remarks (2 results) Funded Workshop (2 results)

  • [Int'l Joint Research] ICJLAB/LAL(フランス)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] Fermilab/Brookhaven NAL/UCSC(米国)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] IJCLAB/LAL(フランス)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] Fermilab/Brookhaven NAL/UCSC(米国)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] Fermilab/Brookheaven/UCSC(米国)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] LAL(フランス)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] フェルミ研究所(米国)

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Optimization of capacitively coupled Low Gain Avalanche Diode (AC-LGAD) sensors for precise time and spatial resolution2023

    • Author(s)
      Kita Sayuka、Nakamura Koji、Ueda Tatsuki、Goya Ikumi、Hara Kazuhiko
    • Journal Title

      Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

      Volume: 1048 Pages: 168009-168009

    • DOI

      10.1016/j.nima.2022.168009

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Investigation of signal characteristics and charge sharing in AC-LGADs with laser and test beam measurements2023

    • Author(s)
      O. Jennifer、L. Sean、M. Adam、R. Eric、W. Marcus、M. Simone M.、N. Mohammad、Sadrozinski Hartmut F.-W.、S. Bruce、S. Abraham、Shin K.-W. Taylor、H. Ryan、M. Christopher、A. Artur、Brooks William K.、C. Wei、D’Amen Gabriele、G. Gabriele、Goya I.、Hara K.、Kita S.、L. Sergey、Nakamura K.、et. al.
    • Journal Title

      Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

      Volume: 1045 Pages: 167541-167541

    • DOI

      10.1016/j.nima.2022.167541

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Characterization of BNL and HPK AC-LGAD sensors with a 120 GeV proton beam2022

    • Author(s)
      Heller R.、Madrid C.、Apresyan A.、Brooks W.K.、Chen W.、D'Amen G.、Giacomini G.、Goya I.、Hara K.、Kita S.、Los S.、Molnar A.、Nakamura K.、Pe?a C.、San Mart?n C.、Tricoli A.、Ueda T.、Xie S.
    • Journal Title

      Journal of Instrumentation

      Volume: 17 Issue: 05 Pages: P05001-P05001

    • DOI

      10.1088/1748-0221/17/05/p05001

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] First Prototype of Finely Segmented HPK AC-LGAD Detectors2021

    • Author(s)
      Nakamura Koji、Kita Sayuka、Ueda Tatsuki、Hara Kazuhiko、Suzuki Hisanori
    • Journal Title

      JPS Conf. Proc.

      Volume: 34 Pages: 010016-010016

    • DOI

      10.7566/jpscp.34.010016

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Study of time resolution of low-gain avalanche detectors2021

    • Author(s)
      Onaru Kyoji、Hara Kazuhiko、Harada Daigo、Wada Sayaka、Nakamura Koji、Unno Yoshinobu
    • Journal Title

      Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

      Volume: 985 Pages: 164664-164664

    • DOI

      10.1016/j.nima.2020.164664

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Design of a Segmented LGAD Sensor for the Development of a 4-D Tracking Detector2020

    • Author(s)
      Wada Sayaka、Onaru Kyoji、Hara Kazuhiko、Unno Yoshinobu、Nakamura Koji
    • Journal Title

      Proceedings of Science

      Volume: PoS(Vertex2019) Pages: 057-057

    • DOI

      10.22323/1.373.0057

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Design of a Segmented LGAD Sensor for the Development of a 4-D Tracking Detector2019

    • Author(s)
      S. Wada, K. Onaru, K. Hara, Y. Unno, K.Nakamura
    • Journal Title

      PoS(Vertex2019)

      Volume: 057 Pages: 1-7

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Improvement of timing resolution and radiation torelance for finely segmented AC-LGAD sensors2023

    • Author(s)
      Kazuhiko Hara
    • Organizer
      18th "Trento" wokshop on advanced silicon radiation detectors (TREDI2023)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 新型LGAD飛跡検出器(AC-LGAD)の電極細密化と時間分解能の研究2023

    • Author(s)
      北彩友海
    • Organizer
      日本物理学会2023年春季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 新型LGAD検出器(AC-LGAD)の放射線耐性の研究2023

    • Author(s)
      今村友香
    • Organizer
      日本物理学会2023年春季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] “Development of AC-LGAD detector with finer pitch electrodes for high energy physics experiment2022

    • Author(s)
      Sayuka Kita
    • Organizer
      The 31st International Workshop on Vertex Detectors (VERTEX2022)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 新型LGAD検出器(AC-LGAD)の電極細密化に関する研究2022

    • Author(s)
      北彩友海
    • Organizer
      日本物理学会2022年秋季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 新型 LGAD 検出器 (AC-LGAD) の放射線耐性の不純物濃度依存性の研究2022

    • Author(s)
      植田樹
    • Organizer
      日本物理学会 2022 年年次大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 新型LGAD検出器(AC-LGAD)の性能評価とその改良に向けた研究2022

    • Author(s)
      北彩友海
    • Organizer
      日本物理学会 2022 年年次大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 新型 LGAD 検出器 (AC-LGAD) の光検出器への応用に関する研究2022

    • Author(s)
      五屋郁美
    • Organizer
      日本物理学会 2022 年年次大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] A study of AC-LGAD structure for finer pitch readout electrodes2021

    • Author(s)
      Sayuka Kita
    • Organizer
      US-Japan Hawaii Conference
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Development of finely segmented AC-LGAD sensors by HPK for precise timing trackers2021

    • Author(s)
      Sayuka Kita
    • Organizer
      IEEE NSS/MIC Conf. @Online
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 新型 LGAD 検出器が切り拓く次世代飛跡検出器2021

    • Author(s)
      中村浩二
    • Organizer
      宇宙史研究センター 2021 年度第1回構成員会議・成果報告&交流会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 新型 LGAD 飛跡検出器 (AC-LGAD) の放射線耐性に関する研究2021

    • Author(s)
      植田樹
    • Organizer
      日本物理学会 2021 年度秋季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] テストビームを用いた新型 LGAD 飛跡検出器 (AC-LGAD) の開発研究2021

    • Author(s)
      北彩友海
    • Organizer
      日本物理学会 2021 年度秋季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 高い時間分解能と位置分解能を併せ持つ新型LGAD飛跡検出器(ACLGAD)開発の現状2021

    • Author(s)
      中村浩二
    • Organizer
      日本物理学会第76回年次大会(2021年)
    • Related Report
      2020 Annual Research Report
  • [Presentation] 新型LGAD飛跡検出器(ACLGAD)の信号とクロストークの評価とシミュレーションによる動作原理の検証2021

    • Author(s)
      北彩友海
    • Organizer
      日本物理学会第76回年次大会(2021年)
    • Related Report
      2020 Annual Research Report
  • [Presentation] 新型LGAD飛跡検出器(ACLGAD)の増幅層の放射線耐性に関する研究2021

    • Author(s)
      植田樹
    • Organizer
      日本物理学会第76回年次大会(2021年)
    • Related Report
      2020 Annual Research Report
  • [Presentation] First prototype of finely segmented HPK AC-LGAD detectors2020

    • Author(s)
      Koji Nakamura
    • Organizer
      29th international Workshop on Vertex Detectors
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 高時間分解能半導体検出器(LGAD)に関する基礎研究と性能評価2020

    • Author(s)
      植田樹
    • Organizer
      日本物理学会2020年秋季大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 内部増幅機能つき半導体検出器(LGAD)のベータ線による時間分解能測定システムの開発2020

    • Author(s)
      大鳴匡至
    • Organizer
      日本物理学会第75回年次大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Design of a Segmented LGAD Sensor for the Development of a 4-D Tracking Detector2019

    • Author(s)
      S. Wada
    • Organizer
      Vertex2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Study of time resolution of low-gain avalanche detectors2019

    • Author(s)
      K. Onaru
    • Organizer
      HSTD12
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 内部増幅機能つき半導体検出器(LGAD)に関する基礎研究2019

    • Author(s)
      大鳴匡至
    • Organizer
      日本物理学会2019年秋季大会
    • Related Report
      2019 Annual Research Report
  • [Remarks] 科研費研究 「4次元飛跡検出器の実現」

    • URL

      https://hep-www.px.tsukuba.ac.jp/~hara/LGAD.html

    • Related Report
      2022 Annual Research Report 2021 Annual Research Report 2020 Annual Research Report
  • [Remarks] 科研費研究 「高時間分解能を併せもつ高位置分解4次元飛跡検出器の実現」

    • URL

      https://hep-www.px.tsukuba.ac.jp/~hara/LGAD.html

    • Related Report
      2019 Annual Research Report
  • [Funded Workshop] The 31th International Workshop on Vertex Detectors (VERTEX2023)2022

    • Related Report
      2022 Annual Research Report
  • [Funded Workshop] 29thInternational Workshoop on Vertex Detectors (Vertex2020)2020

    • Related Report
      2020 Annual Research Report

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Published: 2019-04-18   Modified: 2024-01-30  

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