Dr. Masahiro Sugimoto Profile

Dr. Masahiro Sugimoto

at National Astronomical Observatory of Japan

SPIE Involvement:

Conference Program Committee | Author

Proceedings Article | 11 September 2024 Poster + Paper

Design implementation of Telescope Utility Services (TUS) onto the TMT telescope structure

Seiichi Tazawa, Benjamin Irarrazaval, Amir Sadjadpour, Hirokazu Honda, Makoto Endo, Tatsunori Hirano, Yusuke Kibayashi, Kengo Fujiwara, Hiroshi Kusumoto, Jamie Dodge, Josh Church, Fernando Santoro, Yutaka Ezaki, Gelys Trancho, Kyle Kinoshita, Hiroshi Terada, Masahiro Sugimoto, Masao Saito, Tomonori Usuda

Proceedings Volume 13094, 130943O (2024) https://doi.org/10.1117/12.3018611

KEYWORDS: Telescopes, Design, Pipes, Solid modeling, Thirty Meter Telescope, Interfaces, Computer aided design

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The National Astronomical Observatory of Japan (NAOJ) has been responsible for the telescope structure subsystem (STR) of the Thirty Meter Telescope since 2012 and has engaged Mitsubishi Electric Corporation (MELCO) for preliminary and final design and pre-production work. There are various subsystems on the telescope, such as instruments and moving optics. Power and fluids and other services are required to operate these subsystems and the telescope drives. TMT provides the following services: Electrical Power and Bonding/Grounding, Fire Alarm, Communication and Information System (CIS) Networks, Fixed Temperature Chilled Water (FTCW) and Variable Temperature Chilled Water (VTCW), Hydrostatic Bearing System (HBS) Oil, Facility Compressed Air (FCA), Cryogenic System (CRYO), Refrigerant System (REFR), and Lighting (Operational and Emergency). The TMT defines the Telescope Utility Services (TUS) as the infrastructure which includes the cables and pipes used to deliver these utilities, the structures that support and route them, and the other components (electrical or piping components such as electrical cabinets or manifolds, lighting fixtures, fire alarms, etc.) necessary to provide these services. The design work to attach the TUS components to the STR was complicated due to the wide variety of TUS components and the multitude of mounting configurations and locations throughout the telescope structure. In order to efficiently integrate the various types of TUS components onto the STR, several practices were established and refined in the development of the TUS and STR design: 1. Definition of SOW between TUS and STR to enable concurrent TUS and STR design development 2. Simultaneous development of TUS and STR using CAD model 3. Piping and Cabling allocation within the Azimuth/Elevation Wrap 4. Route planning for cabling and piping 5. Seismic evaluation of TUS components In this paper we present the approach and the design implementation of the TUS components onto the STR.

Proceedings Article | 11 September 2024 Presentation + Paper

Design and status overview of TMT telescope structure

Masahiro Sugimoto, Yutaka Ezaki, Kyle Kinoshita, Amir Sadjadpour, Junji Takaki, Yusuke Saruta, Tomoya Hattori, Hayato Hoshino, Yoshihiro Hosokawa, Makoto Endo, Yusuke Sugie, Masaki Haruna, Noboru Kawaguchi, Yasushi Horiuchi, Masaki Tabata, Hiroshi Terada, Seiichi Tazawa, Hirofumi Okita, Koji Omata, Hiroshi Kusumoto, Koichi Okamoto, Masao Saito, Tomonori Usuda

Proceedings Volume 13094, 1309408 (2024) https://doi.org/10.1117/12.3016864

KEYWORDS: Design, Telescopes, Mirrors, Control systems, Prototyping, Thirty Meter Telescope, Earthquakes

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Proceedings Article | 23 August 2024 Poster + Paper

A collaborative tool and approach for the hazard analysis and risk assessment process at TMT International Observatory

Kayla Hardie, Robert Anderson, James Johnson, Kyle Kinoshita, John Miles, John Rogers, Amir Sadjadpour, Gelys Trancho, Masahiro Sugimoto, Masao Saito, Junji Inatani, Yusuke Saruta

Proceedings Volume 13099, 130992V (2024) https://doi.org/10.1117/12.3019071

KEYWORDS: Systems engineering, Risk assessment, Hazard analysis, Observatories, Safety, Excel, Design, Telescopes

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SPIE Journal Paper | 19 April 2023

Holographic phase-retrieval method of near-field antenna pattern measurement for bolometer-array-equipped millimeter-wave telescopes

Ryo Nakano, Hayato Takakura, Yutaro Sekimoto, Junji Inatani, Masahiro Sugimoto, Shugo Oguri, Frederick Matsuda

JATIS, Vol. 9, Issue 02, 028003, (April 2023) https://doi.org/10.1117/12.10.1117/1.JATIS.9.2.028003

KEYWORDS: Antennas, Near field, Holography, Telescopes, Phase measurement, Holograms, Polarization, Detector arrays, Near field optics, Signal detection

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SPIE Journal Paper | 12 April 2023

Wide-field polarization angle measurements of a LiteBIRD low-frequency telescope scaled antenna

Hayato Takakura, Yutaro Sekimoto, Junji Inatani, Shingo Kashima, Masahiro Sugimoto, Ryo Nakano, Ryo Nagata

JATIS, Vol. 9, Issue 02, 024003, (April 2023) https://doi.org/10.1117/12.10.1117/1.JATIS.9.2.024003

KEYWORDS: Polarization, Antennas, Telescopes, Angle measurement, Transmittance, Reflectors, Signal detection, Calibration, Polarizers, Wavefronts

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Proceedings Article | 31 August 2022 Poster + Paper

A holographic phase-retrieval method of aperture-field evaluation for bolometer-array-equipped radio telescopes

Ryo Nakano, Hayato Takakura, Yutaro Sekimoto, Junji Inatani, Masahiro Sugimoto, Shugo Oguri, Frederick Matsuda

Proceedings Volume 12190, 121901S (2022) https://doi.org/10.1117/12.2627582

KEYWORDS: Antennas, Sensors, Near field, Holograms, Telescopes, Holography, Phase measurement, Polarization, Signal detection, Network security

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Proceedings Article | 29 August 2022 Presentation + Paper

Seismic isolation system design and performance of TMT telescope structure

Masahiro Sugimoto, Atsushi Kato, Junji Takaki, Masaki Tabata, Tomoya Hattori, Amir Sadjadpour, Brady Espeland, Hugh Thompson, Satoru Sofuku, Yutaka Ezaki, Noboru Kawaguchi, Tomonori Usuda, Hiroshi Kusumoto, Masao Saito, Hiroshi Terada, Seiichi Tazawa, Kyle Kinoshita

Proceedings Volume 12182, 1218216 (2022) https://doi.org/10.1117/12.2631409

KEYWORDS: Telescopes, Earthquakes, Finite element methods, Observatories, Prototyping, Thirty Meter Telescope, Astronomy

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Proceedings Article | 27 August 2022 Poster + Paper

Straylight identification of a crossed-Dragone telescope by time-gated near-field antenna pattern measurements

Hayato Takakura, Ryo Nakano, Yutaro Sekimoto, Junji Inatani, Masahiro Sugimoto, Frederick Matsuda, Shugo Oguri

Proceedings Volume 12180, 1218052 (2022) https://doi.org/10.1117/12.2627421

KEYWORDS: Antennas, Telescopes, Near field, Polarization, Reflectors, Optical design, Optical simulations, Fourier transforms, Geometrical optics, Optical testing

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Proceedings Article | 13 December 2020 Poster + Paper

Polarization angle measurement of LiteBIRD low frequency telescope scaled model

Hayato Takakura, Yutaro Sekimoto, Junji Inatani, Shingo Kashima, Masahiro Sugimoto

Proceedings Volume 11443, 114436C (2020) https://doi.org/10.1117/12.2560419

KEYWORDS: Polarization, Telescopes, Antennas, Microwave radiation, Synchrotron radiation, Sensors, Mirrors, Polarizers

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Proceedings Article | 23 July 2014 Paper

Efficient spurious signal detection and mitigation in single-dish radio spectroscopy

Seiji Kameno, Maurizio Miccolis, Masahiro Sugimoto, Theodoros Nakos

Proceedings Volume 9153, 91532L (2014) https://doi.org/10.1117/12.2056535

KEYWORDS: Signal detection, Spectral resolution, Spectroscopy, Interference (communication), Switching, Signal to noise ratio, Absorption, Spectroscopes, Polarization, Astronomy

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Proceedings Article | 22 July 2014 Paper

A holography receiver for the Atacama Large millimeter/submillimeter array antenna and the measured surface deformation

Hitoshi Kiuchi, Masumi Yamada, Masahiro Sugimoto, Masao Saito

Proceedings Volume 9145, 91454J (2014) https://doi.org/10.1117/12.2055377

KEYWORDS: Holography, Antennas, Receivers, Temperature metrology, Sun, Phase measurement, Analog electronics, Interferometers, Aluminum, Astronomy

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Proceedings Article | 25 September 2012 Paper

System engineering of the Atacama Large Millimeter/submillimeter Array

Ravinder Bhatia, Javier Martí, William Snow, Masahiro Sugimoto, Richard Sramek, Maurizio Miccolis, Koh-Ichiro Morita, Demián Arancibia, Andrea Araya, Shin'ichiro Asayama, Denis Barkats, Rodrigo Brito, William Brundage, Wes Grammer, Christoph Haupt, Herve Kurlandczyk, Norikazu Mizuno, Peter Napier, Eduardo Pizarro, Kamaljeet Saini, Gretchen Stahlman, Gianluca Verzichelli, Nick Whyborn, Pavel Yagoubov

Proceedings Volume 8449, 844907 (2012) https://doi.org/10.1117/12.926822

KEYWORDS: Systems engineering, Observatories, Control systems, Antennas, Document management, Astronomy, Manufacturing, Lead, Adaptive optics, Design for manufacturability

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Proceedings Article | 17 September 2012 Paper

ALMA system verification

Richard Sramek, Koh-Ichiro Morita, Masahiro Sugimoto, Peter Napier, Maurizio Miccolis, Pavel Yagoubov, Denis Barkats, William Dent, Satoki Matsushita, Nicholas Whyborn, Shin'ichiro Asayama, Javier Marti Canales, Ravinder Bhatia, Eugene DuVall, Samantha Blair

Proceedings Volume 8444, 84442K (2012) https://doi.org/10.1117/12.925449

KEYWORDS: Antennas, Calibration, Telescopes, Switching, Astronomy, Phase shifts, Interferometry, Image quality, Optical instrument design, Systems engineering

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Showing 5 of 13 publications

Conference Committee Involvement (7)

Modeling, Systems Engineering, and Project Management for Astronomy XI

16 June 2024 | Yokohama, Japan

Modeling, Systems Engineering, and Project Management for Astronomy X

17 July 2022 | Montréal, Québec, Canada

Modeling, Systems Engineering, and Project Management for Astronomy IX

14 December 2020 | Online Only, California, United States

Modeling, Systems Engineering, and Project Management for Astronomy IX

13 December 2020 | San Diego, California, United States

Modeling, Systems Engineering, and Project Management for Astronomy VIII

10 June 2018 | Austin, Texas, United States

Showing 5 of 7 Conference Committees

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