Hiraki Takahiro 平木貴宏

Researcher Number	40791223
Other IDs	https://orcid.org/0000-0002-6235-5830
Affiliation (Current)	2025: 岡山大学, 先鋭研究領域, 特任助教
Affiliation (based on the past Project Information) *help	2019 – 2024: 岡山大学, 異分野基礎科学研究所, 特任助教 2017 – 2018: 岡山大学, 異分野基礎科学研究所, 特別研究員(PD)
Review Section/Research Field	Principal Investigator Basic Section 15020:Experimental studies related to particle-, nuclear-, cosmic ray and astro-physics / Science and Engineering / Particle/Nuclear/Cosmic ray/Astro physics Except Principal Investigator Medium-sized Section 15:Particle-, nuclear-, astro-physics, and related fields
Keywords	Principal Investigator トリウム229 / 原子核実験 / 極低エネルギー準位 / 放射光 / SPring-8 / 真空紫外光 / アイソマー / 原子核 / キセノン / レーザー分光 … More / 原子・分子物理 / レーザー / 原子・分子 / ニュートリノ / X線検出器 / 229Th / 高時間分解能 / APD検出器 / 核共鳴散乱 / 低エネルギー励起準位 … More Except Principal Investigator マクロコヒーレンス / 量子干渉性増幅 / 電気四重極子遷移 / 超放射 / アクシオン / 暗黒物質 / quantum coherence / dark photon / axion / dark matter Less

Thorium-229 nuclei for the development of solid-state nuclear clocksPrincipal Investigator
- Principal Investigator
  
  平木貴宏
- Project Period (FY)
  2024 – 2026
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 15020:Experimental studies related to particle-, nuclear-, cosmic ray and astro-physics
- Research Institution
  Okayama University
Search for deexcitation light from the 229Th isomeric state for laser spectroscopy of nucleiPrincipal Investigator
- Principal Investigator
  
  Hiraki Takahiro
- Project Period (FY)
  2021 – 2023
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 15020:Experimental studies related to particle-, nuclear-, cosmic ray and astro-physics
- Research Institution
  Okayama University
Development of Th-doped crystal for the study of the isomeric state of the 229ThPrincipal Investigator
- Principal Investigator
  
  Hiraki Takahiro
- Project Period (FY)
  2019 – 2020
- Research Category
  
  Grant-in-Aid for Early-Career Scientists
- Review Section
  
  Basic Section 15020:Experimental studies related to particle-, nuclear-, cosmic ray and astro-physics
- Research Institution
  Okayama University
ニュートリノ質量分光に向けた多光子微弱遷移のレート増幅の研究Principal Investigator
- Principal Investigator
  
  平木貴宏
- Project Period (FY)
  2019 – 2020
- Research Category
  
  Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
- Review Section
  
  Science and Engineering
- Research Institution
  Okayama University
Dark matter Axion search using quantum-coherence amplification mechanism
- Principal Investigator
  
  SASAO Noboru
- Project Period (FY)
  2019 – 2022
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Review Section
  
  Medium-sized Section 15:Particle-, nuclear-, astro-physics, and related fields
- Research Institution
  Okayama University
Development of the fast X-ray detector system toward measurement of the isomeric energy level of 229ThPrincipal Investigator
- Principal Investigator
  
  Hiraki Takahiro
- Project Period (FY)
  2017 – 2018
- Research Category
  
  Grant-in-Aid for Young Scientists (B)
- Research Field
  
  Particle/Nuclear/Cosmic ray/Astro physics
- Research Institution
  Okayama University

All 2024 2023 2022 2021 2020 2019 2017

All Journal Article Presentation

[Journal Article] Experimental apparatus for detection of radiative decay of $$^{229}$$Th isomer from Th-doped CaF$$_2$$2024
- Author(s)
  Hiraki Takahiro on behalf of the collaboration
- Journal Title
  
  Interactions
  
  Volume: 245 Issue: 1 Pages: 14-14
- DOI
  10.1007/s10751-024-01844-x
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21H01094, KAKENHI-PROJECT-23K25904
[Journal Article] Absolute X-ray energy measurement using a high-accuracy angle encoder2021
- Author(s)
  Masuda Takahiko、Watanabe Tsukasa、Beeks Kjeld、Fujimoto Hiroyuki、Hiraki Takahiro、Kaino Hiroyuki、Kitao Shinji、Miyamoto Yuki、Okai Koichi、Sasao Noboru、Seto Makoto、Schumm Thorsten、Shigekawa Yudai、Tamasaku Kenji、Uetake Satoshi、Yamaguchi Atsushi、Yoda Yoshitaka、Yoshimi Akihiro、Yoshimura Koji
- Journal Title
  
  Journal of Synchrotron Radiation
  
  Volume: 28 Issue: 1 Pages: 111-119
- DOI
  10.1107/s1600577520014526
- NAID
  120006956810
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K14500, KAKENHI-PROJECT-19H00685, KAKENHI-PROJECT-18H01230, KAKENHI-PROJECT-18J22641, KAKENHI-PROJECT-19K21879, KAKENHI-PROJECT-19K14740, KAKENHI-PROJECT-19K23445
[Journal Article] 高輝度X線を用いた核共鳴散乱技術による原子核229Thアイソマー状態の人工生成2020
- Author(s)
  海野　弘行，笠松　良崇，重河　優大，羽場　宏光，平木　貴宏，増田　孝彦，山口　敦史，横北　卓也，吉見　彰洋，吉村　浩司
- Journal Title
  
  Isotope News
  
  Volume: 768 Pages: 2-6
- Open Access
- Data Source
  KAKENHI-PROJECT-19K14740
[Journal Article] 最小の励起エネルギーをもつ原子核状態229mThの人工的生成2020
- Author(s)
  平木　貴宏、海野　弘行、増田　孝彦、岡井　晃一、笹尾　登、吉見　彰洋、吉村　浩司、北尾　真司、瀬戸　誠、玉作　賢治、依田　芳卓
- Journal Title
  
  SPring-8/SACLA　利用者情報
  
  Volume: 25 Pages: 88-95
- Open Access
- Data Source
  KAKENHI-PROJECT-19K14740
[Journal Article] Active pumping of 229Th nuclear clock isomer by synchrotron radiation-based nuclear resonant scattering2020
- Author(s)
  T. Masuda, T. Hiraki, A. Yoshimi and K. Yoshimura
- Journal Title
  
  SPring-8 Research Frontiers
  
  Volume: 2019 Pages: 30-31
- Open Access
- Data Source
  KAKENHI-PROJECT-19K14740
[Journal Article] X-ray pumping of the 229Th nuclear clock isomer2019
- Author(s)
  T. Masuda, A. Yoshimi, A. Fujieda, H. Fujimoto, H. Haba et al.
- Journal Title
  
  Nature
  
  Volume: 573 Issue: 7773 Pages: 238-242
- DOI
  10.1038/s41586-019-1542-3
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K21879, KAKENHI-PROJECT-19K14740, KAKENHI-PROJECT-19K23445, KAKENHI-PUBLICLY-18H04353, KAKENHI-PROJECT-18H01230, KAKENHI-PROJECT-18J22641
[Journal Article] Energy response of X-rays under high flux conditions using a thin APD for the energy range of 6?33 keV2019
- Author(s)
  Masuda T.、Hiraki T.、Kaino H.、Kishimoto S.、Miyamoto Y.、Okai K.、Okubo S.、Ozaki R.、Sasao N.、Suzuki K.、Uetake S.、Yoshimi A.、Yoshimura K.
- Journal Title
  
  Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
  
  Volume: 913 Pages: 72-77
- DOI
  10.1016/j.nima.2018.10.029
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PUBLICLY-18H04353, KAKENHI-PROJECT-17K14291, KAKENHI-PROJECT-18H01230, KAKENHI-PROJECT-18J22641
[Journal Article] Fast x-ray detector system with simultaneous measurement of timing and energy for a single photon2017
- Author(s)
  Masuda T.、Okubo S.、Hara H.、Hiraki T.、Kitao S.、Miyamoto Y.、Okai K.、Ozaki R.、Sasao N.、Seto M.、Uetake S.、Yamaguchi A.、Yoda Y.、Yoshimi A.、Yoshimura K.
- Journal Title
  
  Review of Scientific Instruments
  
  Volume: 88 Issue: 6 Pages: 063105-063105
- DOI
  10.1063/1.4989405
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-17K14291, KAKENHI-PROJECT-15H03661, KAKENHI-PROJECT-16H04172, KAKENHI-PROJECT-17H02896
[Presentation] 固体中にドープされた229Thアイソマー状態からの脱励起真空紫外光の観測2023
- Author(s)
  平木貴宏
- Organizer
  第12 回停止・低速RI ビームを用いた核分光研究会（12th SSRI）
- Data Source
  KAKENHI-PROJECT-21H01094
[Presentation] トリウム229アイソマー状態からの脱励起真空紫外光探索に向けた高密度NRS標的開発2023
- Author(s)
  平木貴宏
- Organizer
  第16回核共鳴散乱研究会
- Data Source
  KAKENHI-PROJECT-21H01094
[Presentation] トリウム229アイソマー状態からの脱励起真空紫外光の探索2023
- Author(s)
  平木貴宏
- Organizer
  日本物理学会 2023年春季大会
- Data Source
  KAKENHI-PROJECT-21H01094
[Presentation] Search for the nuclear isomeric state of 229 Th toward nuclear clock2022
- Author(s)
  平木貴宏
- Organizer
  RCNP研究会「中性子と原子で探る基礎物理」
- Data Source
  KAKENHI-PROJECT-21H01094
[Presentation] トリウム229アイソマー状態からの脱励起真空紫外光探索2022
- Author(s)
  平木貴宏
- Organizer
  日本物理学会第77 回年次大会
- Data Source
  KAKENHI-PROJECT-21H01094
[Presentation] Er:YSO結晶からの超放射の時間的振舞い2021
- Author(s)
  原秀明, 宮本祐樹, Junseok Han, 笹尾登, 今井康貴, 植竹智, 平木貴宏, 増田孝彦, 吉見彰洋, 吉村浩司, 吉村太彦
- Organizer
  日本物理学会2021年秋季大会
- Data Source
  KAKENHI-PROJECT-19H00686
[Presentation] トリウム229アイソマー準位からの真空紫外光探索実験の現状2020
- Author(s)
  平木貴宏
- Organizer
  日本物理学会　2020年秋季大会
- Data Source
  KAKENHI-PROJECT-19K14740
[Presentation] Recent status of basic studies toward neutrino mass spectroscopy2020
- Author(s)
  平木貴宏
- Organizer
  新学術領域研究ニュートリノで拓く素粒子と宇宙　研究会
- Data Source
  KAKENHI-PUBLICLY-19H05107
[Presentation] Search for the lowest-energy nuclear isomeric state of Th-229 toward a "nuclear clock"2019
- Author(s)
  平木貴宏
- Organizer
  重元素核化学研究会
- Invited
- Data Source
  KAKENHI-PROJECT-17K14291

1. 依田芳卓 (90240366)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
2. SASAO Noboru (10115850)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
3. 宮本祐樹 (00559586)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
4. 原秀明 (70737311)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
5. 吉見彰洋

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
6. 増田孝彦

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
7. 重河優大

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results

Hiraki Takahiro 平木 貴宏

Research Projects

Research Products

Co-Researchers

Thorium-229 nuclei for the development of solid-state nuclear clocksPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Search for deexcitation light from the 229Th isomeric state for laser spectroscopy of nucleiPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Development of Th-doped crystal for the study of the isomeric state of the 229ThPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

ニュートリノ質量分光に向けた多光子微弱遷移のレート増幅の研究Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Dark matter Axion search using quantum-coherence amplification mechanism

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Development of the fast X-ray detector system toward measurement of the isomeric energy level of 229ThPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

[Journal Article] Experimental apparatus for detection of radiative decay of $$^{229}$$Th isomer from Th-doped CaF$$_2$$2024

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Absolute X-ray energy measurement using a high-accuracy angle encoder2021

Author(s)

Journal Title

DOI

NAID

Data Source

[Journal Article] 高輝度X線を用いた核共鳴散乱技術による原子核229Thアイソマー状態の人工生成2020

Author(s)

Journal Title

Data Source

[Journal Article] 最小の励起エネルギーをもつ原子核状態229mThの人工的生成2020

Author(s)

Journal Title

Data Source

[Journal Article] Active pumping of 229Th nuclear clock isomer by synchrotron radiation-based nuclear resonant scattering2020

Author(s)

Journal Title

Data Source

[Journal Article] X-ray pumping of the 229Th nuclear clock isomer2019

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Energy response of X-rays under high flux conditions using a thin APD for the energy range of 6?33 keV2019

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Fast x-ray detector system with simultaneous measurement of timing and energy for a single photon2017

Author(s)

Journal Title

DOI

Data Source

[Presentation] 固体中にドープされた229Thアイソマー状態からの脱励起真空紫外光の観測2023

Author(s)

Hiraki Takahiro 平木貴宏

[Presentation] トリウム229アイソマー状態からの脱励起真空紫外光探索に向けた高密度NRS標的開発2023