High dynamic range quantitative imaging of hydrogen

• Project/Area Number: 20H01990
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Review Section: Basic Section 17040:Solid earth sciences-related
• Research Institution: Hokkaido University
• Principal Investigator: Sakamoto Naoya 北海道大学, 創成研究機構, 准教授 (30466429)
• Co-Investigator(Kenkyū-buntansha): 飯塚 毅 東京大学, 大学院理学系研究科(理学部), 准教授 (70614569)
• Project Period (FY): 2020-04-01 – 2024-03-31
• Project Status: Completed (Fiscal Year 2023)
• Budget Amount: ¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000); Fiscal Year 2023: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000); Fiscal Year 2022: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000); Fiscal Year 2021: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000); Fiscal Year 2020: ¥9,620,000 (Direct Cost: ¥7,400,000、Indirect Cost: ¥2,220,000)
• Keywords: High dynamic range / Isotope imaging / Ion detector / CMOS imager / Water / Planet / 水素 / イメージング / 二次イオン質量分析 / 火星隕石 / 同位体顕微鏡 / 二次元イオン検出器 / 高ダイナミックレンジ / 惑星 / 同位体 / 質量分析

Outline of Research at the Start

惑星を構成する主要鉱物に含まれる水素の量は非常に少ないにも関わらず、莫大な体積を占めるために、微小な分析値の違いが惑星全体の水の推定に大きな影響を及ぼす。火星隕石やアポロ、探査機はやぶさなどの宇宙帰還試料は、量が限られるために地球の吸着水の影響を避けることが難しく、惑星内部を再現する高圧実験試料は、水を大量に取り込むガラスなどが調査対象のすぐ傍にあるために水の定量を行うのは非常に困難であった。本研究では、固体物質表面の水素同位体分布を可視化する同位体顕微鏡を改良し、同一視野内に含まれる多量の水素と極微量な水素を同時に高精細にイメージング可能なシステムを開発する。

Outline of Final Research Achievements

Hydrogen contained in major minerals of rocky planets occupy a huge volume in the entire planet in spite of its extremely small amount. Therefore, a slight difference in analytical values due to the effect of adsorbed water on the earth has a great influence in the analysis of extraterrestrial materials and high-pressure experimental samples.
We developed a high dynamic range (HDR) ion imaging system by devising a readout method to maximize the advantages of direct isotope imaging.
The newly developed HDR ion imaging system has demonstrated the ability to continuously acquire ion intensity distributions over six orders of magnitude within the same field of view. This system realizes precise imaging dating using radionuclides and hydrogen isotope ratio imaging of anhydrous and hydrous mineral mixtures.

Academic Significance and Societal Importance of the Research Achievements

固体表面の水素をイメージングする新たな手法を開発しました。この手法では、検出器の読み出し方法を工夫することで、８桁のダイナミックレンジを実現しています。これにより、ほとんど水を含まない無水鉱物が大部分を占める固体惑星の水の総量の推定だけでなく、同位元素の含有量が1000万倍異なるようなミクロンスケールの物質が混在していても、正確にその含有量を分析することが可能となります。

Research Products

• [Journal Article] Disequilibrium oxygen isotope distribution among aqueously altered minerals in Ryugu asteroid returned samples (2024)
  • Author(s): Kita Noriko T.、Kitajima Kouki、Nagashima Kazuhide、Kawasaki Noriyuki、Sakamoto Naoya、Fujiya Watar et al.
  • Journal Title: Meteoritics & Planetary Science Volume: - Issue: 8 Pages: 2097-2116
  • DOI: 10.1111/maps.14163
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Olivine-Hosted Melt Inclusions Track Progressive Dehydration Reactions in Subducting Slabs Across Volcanic Arcs (2024)
  • Author(s): Brahm Raimundo、Coulthard Jr Daniel、Zellmer Georg、Kuritani Takeshi、Sakamoto Naoya、Taniuchi Hajime、Yurimoto Hisayoshi、Nakagawa Mitsuhiro、Sato Eiichi
  • Journal Title: Journal of Petrology Volume: 65 Issue: 4
  • DOI: 10.1093/petrology/egae017
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Pervasive aqueous alteration in the early Solar System revealed by potassium isotopic variations in Ryugu samples and carbonaceous chondrites (2024)
  • Author(s): Hu Yan、et al.
  • Journal Title: Icarus Volume: 409 Pages: 115884-115884
  • DOI: 10.1016/j.icarus.2023.115884
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Pressure dependence of metal-silicate partitioning explains the mantle phosphorus abundance (2024)
  • Author(s): Ikuta Nagi、Sakamoto Naoya、Tagawa Shoh、Hirose Kei、Tsutsumi Yutaro、Yokoo Shunpei、Yurimoto Hisayoshi
  • Journal Title: Scientific Reports Volume: 14 Issue: 1 Pages: 1194-1194
  • DOI: 10.1038/s41598-024-51662-y
  • Peer Reviewed / Open Access
• [Journal Article] Plutonic Nature of a Transcrustal Magmatic System: Evidence from Ultrahigh Resolution Sr-Disequilibria in Plagioclase Microantecrysts from the Southern Taupo Volcanic Zone, New Zealand (2023)
  • Author(s): Coulthard Jr Daniel A、Brahm Raimundo、Lormand Charline、Zellmer Georg F、Sakamoto Naoya、Iizuka Yoshiyuki、Yurimoto Hisayoshi
  • Journal Title: Journal of Petrology Volume: 65 Issue: 1
  • DOI: 10.1093/petrology/egad087
• [Journal Article] Neodymium‐142 deficits and samarium neutron stratigraphy of C‐type asteroid (162173) Ryugu (2023)
  • Author(s): Torrano Zachary A.、et al.
  • Journal Title: Meteoritics & Planetary Science Volume: - Issue: 8 Pages: 1-17
  • DOI: 10.1111/maps.14109
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] The Magnesium Isotope Composition of Samples Returned from Asteroid Ryugu (2023)
  • Author(s): Bizzarro Martin、et al.
  • Journal Title: The Astrophysical Journal Letters Volume: 958 Issue: 2 Pages: L25-L25
  • DOI: 10.3847/2041-8213/ad09d9
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Water circulation in Ryugu asteroid affected the distribution of nucleosynthetic isotope anomalies in returned sample (2023)
  • Author(s): Yokoyama Tetsuya、et al.
  • Journal Title: Science Advances Volume: 9 Issue: 45
  • DOI: 10.1126/sciadv.adi7048
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] The Oxygen Isotopic Composition of Samples Returned from Asteroid Ryugu with Implications for the Nature of the Parent Planetesimal (2023)
  • Author(s): Tang Haolan、et al.
  • Journal Title: The Planetary Science Journal Volume: 4 Issue: 8 Pages: 144-144
  • DOI: 10.3847/psj/acea62
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Hydrogen Isotopic Composition of Hydrous Minerals in Asteroid Ryugu (2023)
  • Author(s): Piani L., Nagashima K., Kawasaki N., Sakamoto N., Bajo K.-I., Yabuta H. et al.
  • Journal Title: The Astrophysical Journal Letters Volume: 946 Issue: 2 Pages: L43-L43
  • DOI: 10.3847/2041-8213/acc393
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Samples returned from the asteroid Ryugu are similar to Ivuna-type carbonaceous meteorites (2023)
  • Author(s): Yokoyama Tetsuya、Nagashima Kazuhide、Nakai Izumi、Young Edward D.、Abe Yoshinari、Aleon Jerome、Alexander Conel M. O’D.、Amari Sachiko、Amelin Yuri、Bajo Ken-ichi ... Yabuta Hikaru ... et al.
  • Journal Title: Science Volume: 379 Issue: 6634 Pages: 7850-7850
  • DOI: 10.1126/science.abn7850
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Oxygen isotopes of anhydrous primary minerals show kinship between asteroid Ryugu and comet 81P/Wild2 (2022)
  • Author(s): Kawasaki Noriyuki、Nagashima Kazuhide、Sakamoto Naoya、Matsumoto Toru、Bajo Ken-ichi、Wada Sohei、Igami Yohei、Miyake Akira、Noguchi Takaaki、Yamamoto Daiki ... Yabuta Hikaru ... et al.
  • Journal Title: Science Advances Volume: 8 Issue: 50 Pages: 1-10
  • DOI: 10.1126/sciadv.ade2067
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Ryugu’s nucleosynthetic heritage from the outskirts of the Solar System (2022)
  • Author(s): Hopp Timo、Dauphas Nicolas、Abe Yoshinari、Aleon Jerome、O’D. Alexander Conel M.、Amari Sachiko、Amelin Yuri、Bajo Ken-ichi、Bizzarro Martin、Bouvier Audrey ... Yabuta Hikaru ... et al.
  • Journal Title: Science Advances Volume: 8 Issue: 46 Pages: 1-10
  • DOI: 10.1126/sciadv.add8141
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Formation and decomposition of vacancy-rich clinopyroxene in a shocked eucrite: New insights for multiple impact events (2022)
  • Author(s): Zhang Ai-Cheng、Li Jie-Ya、Chen Jia-Ni、Wen Yuan-Yun、Guo Yan-Jun、Li Yang、Sakamoto Naoya、Yurimoto Hisayoshi
  • Journal Title: Geochimica et Cosmochimica Acta Volume: 329 Pages: 38-50
  • DOI: 10.1016/j.gca.2022.05.017
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Oxygen and Al-Mg isotopic constraints on cooling rate and age of partial melting of an Allende Type B CAI, Golfball. (2021)
  • Author(s): Kawasaki, N., Itoh, S., Sakamoto, N., Simon, S.B., Yamamoto, D. and Yurimoto, H.
  • Journal Title: Meteorit. Planet. Sci. Volume: 56 Issue: 6 Pages: 1224-1239
  • DOI: 10.1111/maps.13701
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Hydrogen diffusion mechanism in the mantle deduced from H-D interdiffusion in wadsleyite (2021)
  • Author(s): W. Sun, T. Yoshino, N. Sakamoto, H. Yurimoto
  • Journal Title: Earth and Planetary Science Letters Volume: 561 Pages: 116815-116815
  • DOI: 10.1016/j.epsl.2021.116815
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Experimental evidence for hydrogen incorporation into Earth’s core (2021)
  • Author(s): ShohTagawa, NaoyaSakamoto, KeiHirose, ShunpeiYokoo, JohnHernlund3 YasuoOhishi, HisayoshiYurimoto
  • Journal Title: Nature Communications Volume: 12 Issue: 1 Pages: 2588-2588
  • DOI: 10.1038/s41467-021-22035-0
  • NAID: 120007034010
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] MushPEC: Correcting Post-entrapment Processes Affecting Melt Inclusions Hosted in Olivine Antecrysts (2021)
  • Author(s): Brahm Raimundo、Zellmer Georg F.、Kuritani Takeshi、Coulthard Daniel、Nakagawa Mitsuhiro、Sakamoto Naoya、Yurimoto Hisayoshi、Sato Eiichi
  • Journal Title: Frontiers in Earth Science Volume: 8
  • DOI: 10.3389/feart.2020.599726
• [Journal Article] An effect of variations in relative sensitivity factors on Al-Mg systematics of Ca-Al-rich inclusions in meteorites with secondary ion mass spectrometry (2021)
  • Author(s): Kawasaki Noriyuki、Park Changkun、Wakaki Shigeyuki、Kim Hwayoung、Park Sunyoung、Yoshimura Toshihiro、Nagaishi Kazuya、Kim Hyun Na、Sakamoto Naoya、Yurimoto Hisayoshi
  • Journal Title: GEOCHEMICAL JOURNAL Volume: 55 Issue: 4 Pages: 283-287
  • DOI: 10.2343/geochemj.2.0634
  • NAID: 130008119462
• [Journal Article] Widespread Tissintite in Strongly Shock-Lithified Lunar Regolith Breccias. (2021)
  • Author(s): Zhang, A.-C., Jiang, Q.-T., Tomioka, N., Guo, Y.-J., Chen, J.-N., Li, Y., Sakamoto, N. and Yurimoto, H.
  • Journal Title: Geophysical Research Letters Volume: 48 Issue: 5 Pages: 1-1
  • DOI: 10.1029/2020gl091554
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Mineralogical and oxygen isotopic study of a new ultrarefractory inclusion in the Northwest Africa 3118 CV3 chondrite. (2020)
  • Author(s): Yong Xiong, Ai‐Cheng Zhang, Noriyuki Kawasaki, Chi Ma, Naoya Sakamoto, Jia‐Ni Chen, Li‐Xin, Gu, Hisayoshi Yurimoto
  • Journal Title: Meteoritics & Planetary Science Volume: 55 Issue: 10 Pages: 2184-2205
  • DOI: 10.1111/maps.13575
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] A new occurrence of corundum in eucrite and its significance. (2020)
  • Author(s): Jie-Ya Li, Ai-Cheng Zhang, Naoya Sakamoto, Hisayoshi Yurimoto, Li-Xin Gu
  • Journal Title: American Mineralogist Volume: 105 Issue: 11 Pages: 1656-1661
  • DOI: 10.2138/am-2020-7361
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Variations in initial 26Al/27Al ratios among fine-grained Ca-Al-rich inclusions from reduced CV chondrites (2020)
  • Author(s): Kawasaki Noriyuki、Wada Sohei、Park Changkun、Sakamoto Naoya、Yurimoto Hisayoshi
  • Journal Title: Geochimica et Cosmochimica Acta Volume: 279 Pages: 1-15
  • DOI: 10.1016/j.gca.2020.03.045
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Unique angrite-like fragments in a CH3 chondrite reveal a new basaltic planetesimal (2020)
  • Author(s): Zhang Ai-Cheng、Kawasaki Noriyuki、Kuroda Minami、Li Yang、Wang Hua-Pei、Bai Xue-Ning、Sakamoto Naoya、Yin Qing-Zhu、Yurimoto Hisayoshi
  • Journal Title: Geochimica et Cosmochimica Acta Volume: 275 Pages: 48-63
  • DOI: 10.1016/j.gca.2020.02.014
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] The Cr-Zr-Ca armalcolite in lunar rocks is loveringite: Constraints from electron backscatter diffraction measurements. (2020)
  • Author(s): Ai-Cheng Zhang, Run-Lian Pang, Naoya Sakamoto, Hisayoshi Yurimoto
  • Journal Title: American Mineralogist Volume: 105 Issue: 7 Pages: 1021-1029
  • DOI: 10.2138/am-2020-7260
  • Peer Reviewed / Int'l Joint Research
• [Presentation] Cryogenic Isotope Microscope from Stars to Life (2024)
  • Author(s): N. Sakamoto
  • Organizer: 17O Labeled Stable Isotope Water Imaging Symposium
  • Int'l Joint Research / Invited
• [Presentation] WATER IN ALMAHATA SITTA ENSTATITE CHONDRITE PYROXENE (2024)
  • Author(s): C. G. Ordonez, Z. Jiang, J. P. Greenwood, and N. Sakamoto
  • Organizer: Lunar and Planetary Science Conference
  • Int'l Joint Research
• [Presentation] WATER IN LATE-STAGE LUNAR GLASSES: FACT OR FICTION? (2024)
  • Author(s): Z. Jiang, C. G. Ordonez, J. P. Greenwood, and N. Sakamoto
  • Organizer: Lunar and Planetary Science Conference
  • Int'l Joint Research
• [Presentation] Relative abundances of light elements between Ryugu and Ivuna (2022)
  • Author(s): Naoya Sakamoto
  • Organizer: Goldschmidt Conference2022
  • Int'l Joint Research
• [Presentation] 同位体顕微鏡による生命の原材料物質の探索 (2022)
  • Author(s): 坂本直哉
  • Organizer: 日本学術振興会第９回先端計測R026研究会
  • Int'l Joint Research
• [Presentation] 同位体顕微鏡を月面に設置する (2022)
  • Author(s): 坂本直哉
  • Organizer: 第６９回日本地球化学会
  • Invited
• [Presentation] クライオ同位体顕微鏡の開発と応用 (2022)
  • Author(s): 坂本直哉
  • Organizer: 日本顕微鏡学会 第78回学術講演会
  • Invited
• [Remarks] Naoya Sakamoto
  • URL: http://vigarano.ep.sci.hokudai.ac.jp/naoya/