Dr. Hiromasa Miyasaka Profile

Dr. Hiromasa Miyasaka

at Caltech

SPIE Involvement:

Author

Publications (28)

Proceedings Article | 28 August 2024 Poster

Characterizations of the charge sharing and loss effects on Cadmium Telluride and Cadmium Zinc Telluride pixel detectors with a custom ASIC for astrophysical applications

Hiromasa Miyasaka, Fiona Harrison, Walter Cook, Brian Grefenstette, Jill Burnham, Kristin Madsen, Sean Pike, Joseph Bichel

Proceedings Volume PC13103, PC131030Q (2024) https://doi.org/10.1117/12.3017855

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SPIE Journal Paper | 31 January 2023

Tuning of nuclear spectroscopic telescope array application specific integrated circuits to improve low energy threshold of future hard x-ray imaging detectors

Daniel Violette, Branden Allen, Jae Sub Hong, Hiromasa Miyasaka, Jonathan Grindlay

JATIS, Vol. 9, Issue 01, 016001, (January 2023) https://doi.org/10.1117/12.10.1117/1.JATIS.9.1.016001

KEYWORDS: Application specific integrated circuits, Image resolution, Telescopes, Detector arrays, X-ray telescopes, Analog electronics, Spectroscopy, Pixel resolution, Spectroscopes, Capacitors

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SPIE Journal Paper | 22 December 2022

Properties of Redlen cadmium zinc telluride with respect to x-ray spectroscopy

Sean N. Pike, Milan Sharma Mandigo-Stoba, Fiona Harrison, Walter Cook, Brian Grefenstette, Hiromasa Miyasaka

JATIS, Vol. 8, Issue 04, 046002, (December 2022) https://doi.org/10.1117/12.10.1117/1.JATIS.8.4.046002

KEYWORDS: Spectral resolution, X-rays, Zinc, Cadmium, Spectroscopy, Americium, Crystals, Europium, Capacitors, Clouds

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SPIE Journal Paper | 6 December 2022 Open Access

NuSTAR non-x-ray background

Brian Grefenstette, Kristin Madsen, Hiromasa Miyasaka, Andreas Zoglauer

JATIS, Vol. 8, Issue 04, 047001, (December 2022) https://doi.org/10.1117/12.10.1117/1.JATIS.8.4.047001

KEYWORDS: X-rays, Solar processes, Sun, Equipment, Solar radiation, Particles, Tunable filters, Satellites, X-ray telescopes, Telescopes

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SPIE Journal Paper | 29 September 2022 Open Access

Effective area calibration of the Nuclear Spectroscopic Telescope Array

Kristin Madsen, Karl Forster, Brian Grefenstette, Fiona Harrison, Hiromasa Miyasaka

JATIS, Vol. 8, Issue 03, 034003, (September 2022) https://doi.org/10.1117/12.10.1117/1.JATIS.8.3.034003

KEYWORDS: Calibration, Sensors, Telescopes, Spectroscopy, Vignetting, Data modeling, Absorption, Platinum, Quantum efficiency, X-rays

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Proceedings Article | 27 August 2022 Poster + Paper

SPHERExLabTools (SLT): a Python data acquisition system for SPHEREx characterization and calibration

Sam Condon, Marco Viero, James Bock, Howard Hui, Phil Korngut, Hiromasa Miyasaka, Ken Manatt, Chi Nguyen, Hien Nguyen, Steve Padin

Proceedings Volume 12180, 121804S (2022) https://doi.org/10.1117/12.2630662

KEYWORDS: Calibration, Associative arrays, Data acquisition, Microscopes, Collimators, Spectral calibration, Sensors, Collimation, Monochromators

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SPIE Journal Paper | 4 July 2022

Testing station for fast screening of through silicon via-enabled application-specific integrated circuits for hard x-ray imaging detectors

Daniel Violette, Branden Allen, Jaesub Hong, Hiromasa Miyasaka, Jonathan Grindlay

JATIS, Vol. 8, Issue 03, 036001, (July 2022) https://doi.org/10.1117/12.10.1117/1.JATIS.8.3.036001

KEYWORDS: Sensors, Silicon, Wafer testing, Image resolution, Semiconducting wafers, Hard x-rays, Detector arrays, Application specific integrated circuits, X-rays, X-ray telescopes

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SPIE Journal Paper | 9 April 2021

Proof of concept for through silicon vias in application-specific integrated circuits for hard x-ray imaging detectors

Jaesub Hong, Jonathan Grindlay, Branden Allen, Daniel Violette, Hiromasa Miyasaka, Dean Malta, Jennifer Ovental, David Bordelon, Daniel Richter

JATIS, Vol. 7, Issue 02, 026001, (April 2021) https://doi.org/10.1117/12.10.1117/1.JATIS.7.2.026001

KEYWORDS: Sensors, Semiconducting wafers, Silicon, Application specific integrated circuits, Copper, Signal processing, Etching, X-ray telescopes, Spectral resolution, Packaging

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Proceedings Article | 13 December 2020 Presentation + Paper

SPHEREx: NASA's near-infrared spectrophotometric all-sky survey

Brendan Crill, Michael Werner, Rachel Akeson, Matthew Ashby, Lindsey Bleem, James Bock, Sean Bryan, Jill Burnham, Joyce Byunh, Tzu-Ching Chang, Yi-Kuan Chiang, Walter Cook, Asantha Cooray, Andrew Davis, OIivier Doré, C. Darren Dowell, Gregory Dubois-Felsmann, Tim Eifler, Andreas Faisst, Salman Habib, Chen Heinrich, Katrin Heitmann, Grigory Heaton, Christopher Hirata, Viktor Hristov, Howard Hui, Woong-Seob Jeong, Jae Hwan Kang, Branislav Kecman, J. Davy Kirkpatrick, Phillip Korngut, Elisabeth Krause, Bomee Lee, Carey Lisse, Daniel Masters, Philip Mauskopf, Gary Melnick, Hiromasa Miyasaka, Hooshang Nayyeri, Hien Nguyen, Karin Öberg, Steve Padin, Roberta Paladini, Milad Pourrahmani, Jeonghyun Pyo, Roger Smith, Yong-Seong Song, Teresa Symons, Harry Teplitz, Volker Tolls, Steve Unwin, Rogier Windhorst, Yujin Yang, Michael Zemcov

Proceedings Volume 11443, 114430I (2020) https://doi.org/10.1117/12.2567224

KEYWORDS: Galactic astronomy, Telescopes, Astrophysics, Spectral resolution, Absorption, Stars, Spectroscopes, Detector arrays, Beam splitters, Optical filters

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Proceedings Article | 13 September 2018 Paper

Characterization of Redlen CZT detectors for hard x-ray astronomy

Sean Pike, Fiona Harrison, Jill Burnham, Walter Cook, Brian Grefenstette, Kristin Madsen, Hiromasa Miyasaka, Julian Sanders, Andrew Sosanya

Proceedings Volume 10762, 1076214 (2018) https://doi.org/10.1117/12.2321990

KEYWORDS: Sensors, Spectral resolution, Astronomy, X-ray astronomy, Americium, Crystals, Calibration, Hard x-rays, Cadmium, X-rays

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Proceedings Article | 9 August 2018 Paper

Pushing the limits of NuSTAR detectors

Brian Grefenstette, W. Rick Cook, Fiona Harrison, Takao Kitaguchi, Kristin Madsen, Hiromasa Miyasaka, Sean Pike

Proceedings Volume 10709, 107092V (2018) https://doi.org/10.1117/12.2312844

KEYWORDS: Sensors, Calibration, Electronics, X-ray telescopes, X-ray optics, Hard x-rays, Signal to noise ratio, Space operations, Spectroscopes, Telescopes

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Proceedings Article | 7 August 2018 Presentation + Paper

Characterization of Redlen CZT detectors for x-ray astronomy

Sean Pike, Fiona Harrison, Jill Burnham, Walter Cook, Brian Grefenstette, Kristin Madsen, Hiromasa Miyasaka

Proceedings Volume 10709, 107091D (2018) https://doi.org/10.1117/12.2313860

KEYWORDS: Sensors, X-ray astronomy, Americium, Spectral resolution, Crystals, X-ray detectors, Cadmium, X-ray telescopes, Zinc

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Proceedings Article | 10 July 2018 Presentation

The high-energy x-ray probe (HEX-P) (Conference Presentation)

Fiona Harrison, Kristin Madsen, Brian Grefenstette, Daniel Stern, Ann Hornschemeier, Steven Boggs, Niel Brandt, Laura Brenneman, Deepto Chakrabarty, Finn Christensen, William Craig, Andrew Fabian, Martin Elvis, Jonathan Grindlay, Charles Hailey, Allan Hornstrup, Victoria Kaspi, Grzegorz Madejski, Giorgio Matt, Jon Miller, Hiromasa Miyasaka, Silvano Molendi, William Zhang, John Tomsick, Mihoko Yukita

Proceedings Volume 10699, 106992B (2018) https://doi.org/10.1117/12.2313836

KEYWORDS: X-rays, Spatial resolution, Active galactic nuclei, Binary data

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Proceedings Article | 6 July 2018 Paper

Optical instrument design of the high-energy x-ray probe (HEX-P)

Kristin Madsen, Fiona Harrison, D. Broadway, F. Christensen, M. Descalle, D. Ferreira, B. Grefenstette, D. Gurgew, A. Hornschemeier, H. Miyasaka, T. Okajima, S. Pike, M. Pivovaroff, T. Saha, D. Stern, J. Vogel, D. Windt, W. Zhang

Proceedings Volume 10699, 106996M (2018) https://doi.org/10.1117/12.2314117

KEYWORDS: Coating, X-rays, Multilayers, Sensors, Mirrors, Photons, Platinum, Optical instrument design, Nickel, X-ray technology

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Proceedings Article | 6 July 2018 Presentation + Paper

Effective area calibration of the nuclear spectroscopic telescope array (NuSTAR)

Kristin Madsen, Walter Cook, Karl Forster, Brian Grefenstette, Fiona Harrison, Hiromasa Miyasaka, Sean Pike

Proceedings Volume 10699, 106991W (2018) https://doi.org/10.1117/12.2313675

KEYWORDS: Calibration, Sensors, Absorption, Data modeling, Spectroscopy, Telescopes, X-rays, Platinum, Mirrors

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SPIE Journal Paper | 27 October 2017 Open Access

Observational artifacts of Nuclear Spectroscopic Telescope Array: ghost rays and stray light

Kristin K. Madsen, Finn E. Christensen, William W. Craig, Karl W. Forster, Brian W. Grefenstette, Fiona A. Harrison, Hiromasa Miyasaka, Vikram Rana

JATIS, Vol. 3, Issue 04, 044003, (October 2017) https://doi.org/10.1117/12.10.1117/1.JATIS.3.4.044003

KEYWORDS: Photons, Sensors, Mirrors, Telescopes, Space telescopes, Reflection, Stray light, Spectroscopes, X-rays, Reflectivity

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Proceedings Article | 15 September 2017 Presentation + Paper

Through-Silicon-Vias (TSVs) for 3D readout of ASIC for nearly gapless CdZnTe detector arrays

J. Hong, B. Allen, J. Grindlay, Hiromasa Miyasaka, Jill Burnham, Sangki Hong, Wesker Lei, Scott Barthelmy, Robert Patti, Fiona Harrison

Proceedings Volume 10392, 103920U (2017) https://doi.org/10.1117/12.2274360

KEYWORDS: Sensors, Semiconducting wafers, Plating, Space telescopes, Crystals, Copper, Scanning electron microscopy, Etching, Telescopes, Metals

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Proceedings Article | 29 August 2017 Paper

Ground calibration of the spatial response and quantum efficiency of the CdZnTe hard x-ray detectors for NuSTAR

Brian Grefenstette, Varun Bhalerao, W. Rick Cook, Fiona Harrison, Takao Kitaguchi, Kristin Madsen, Peter Mao, Hiromasa Miyasaka, Vikram Rana

Proceedings Volume 10392, 1039207 (2017) https://doi.org/10.1117/12.2271365

KEYWORDS: Sensors, Calibration, Hard x-rays, Spectroscopy, Telescopes, Astrophysics

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Proceedings Article | 15 July 2016 Paper

Getting NuSTAR on target: predicting mast motion

Karl Forster, Kristin Madsen, Hiromasa Miyasaka, William Craig, Fiona Harrison, Vikram Rana, Craig Markwardt, Brian Grefenstette

Proceedings Volume 9910, 99100Z (2016) https://doi.org/10.1117/12.2231239

KEYWORDS: Observatories, Space telescopes, Space operations, X-ray telescopes, Telescopes, Sensors, Cryogenics, Stars, Electrophoretic light scattering, Neodymium

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Proceedings Article | 6 August 2014 Paper

NuSTAR observatory science operations: on-orbit acclimation

Karl Forster, Fiona Harrison, Suzanne Dodd, Daniel Stern, Hiromasa Miyasaka, Kristin Madsen, Brian Grefenstette, Craig Markwardt, William Craig, Francis Marshall

Proceedings Volume 9149, 91490R (2014) https://doi.org/10.1117/12.2056916

KEYWORDS: Space operations, Observatories, Sensors, System on a chip, Space telescopes, Calibration, Telescopes, Sun, X-ray telescopes, Stars

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Proceedings Article | 24 July 2014 Paper

The nuclear spectroscopic telescope array (NuSTAR) high-energy X-ray mission

Kristin Madsen, Fiona Harrison, Hongjun An, Steven Boggs, Finn Christensen, Rick Cook, William Craig, Karl Forster, Felix Fuerst, Brian Grefenstette, Charles Hailey, Takao Kitaguchi, Craig Markwardt, Peter Mao, Hiromasa Miyasaka, Vikram Rana, Daniel Stern, William Zhang, Andreas Zoglauer, Dominic Walton, Niels Westergaard

Proceedings Volume 9144, 91441P (2014) https://doi.org/10.1117/12.2056643

KEYWORDS: X-rays, Stars, X-ray telescopes, Space telescopes, Iron, Data modeling, Calibration, Galactic astronomy, Electroluminescent displays, Magnetism

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Proceedings Article | 24 July 2014 Paper

Inflight performance and calibration of the NuSTAR CdZnTe pixel detectors

Takao Kitaguchi, Varun Bhalerao, W. Cook, Karl Forster, Brian Grefenstette, Fiona Harrison, Kristin Madsen, Peter Mao, Hiromasa Miyasaka, Vikram Rana

Proceedings Volume 9144, 91441R (2014) https://doi.org/10.1117/12.2057342

KEYWORDS: Sensors, X-rays, Calibration, X-ray detectors, X-ray telescopes, Calcium, Astronomy, Signal detection, Space telescopes, Spectral models

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Proceedings Article | 14 September 2011 Paper

Spectral calibration and modeling of the NuSTAR CdZnTe pixel detectors

Takao Kitaguchi, Brian Grefenstette, Fiona Harrison, Hiromasa Miyasaka, Varun Bhalerao, Walter Cook, Peter Mao, Vikram Rana, Steven Boggs, Andreas Zoglauer

Proceedings Volume 8145, 814507 (2011) https://doi.org/10.1117/12.896972

KEYWORDS: Sensors, Monte Carlo methods, Data modeling, Calibration, Spectral models, Space telescopes, Hard x-rays, Crystals, Clouds, X-ray telescopes

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Proceedings Article | 29 July 2010 Paper

The Nuclear Spectroscopic Telescope Array (NuSTAR)

Fiona Harrison, Steve Boggs, Finn Christensen, William Craig, Charles Hailey, Daniel Stern, William Zhang, Lorella Angelini, Hongjun An, Varun Bhalerao, Nicolai Brejnholt, Lynn Cominsky, W. Rick Cook, Melania Doll, Paolo Giommi, Brian Grefenstette, Allan Hornstrup, Vicky Kaspi, Yunjin Kim, Takeo Kitaguchi, Jason Koglin, Carl Christian Liebe, Greg Madejski, Kristin Kruse Madsen, Peter Mao, David Meier, Hiromasa Miyasaka, Kaya Mori, Matteo Perri, Michael Pivovaroff, Simonetta Puccetti, Vikram Rana, Andreas Zoglauer

Proceedings Volume 7732, 77320S (2010) https://doi.org/10.1117/12.858065

KEYWORDS: Sensors, Space telescopes, Telescopes, X-ray telescopes, Multilayers, Spectroscopy, Hard x-rays, Spectral resolution, Optical alignment, Space operations

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Proceedings Article | 3 September 2009 Paper

Development of focal plane detectors for the Nuclear Spectroscopic Telescope Array (NuSTAR) mission

Vikram Rana, Walter Cook, Fiona Harrison, Peter Mao, Hiromasa Miyasaka

Proceedings Volume 7435, 743503 (2009) https://doi.org/10.1117/12.825418

KEYWORDS: Sensors, Spectral resolution, Telescopes, Hard x-rays, Spectroscopy, Space telescopes, Staring arrays, Gamma radiation, Signal detection, Image resolution

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Proceedings Article | 21 August 2009 Paper

Development of a cadmium telluride pixel detector for astrophysical applications

Hiromasa Miyasaka, Fiona Harrison, Walter Cook, Peter Mao, Vikram Rana, Shin-nosuke Ishikawa, Masayoshi Ushio, Hiroyuki Aono, Shin Watanabe, Goro Sato, Motohide Kokubun, Tadayuki Takahashi

Proceedings Volume 7435, 74350Q (2009) https://doi.org/10.1117/12.825711

KEYWORDS: Sensors, X-rays, Polarization, X-ray detectors, Cadmium, Hard x-rays, Space telescopes, Detector development, Spectral resolution, Floods

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Proceedings Article | 15 June 2006 Paper

Development of cosmic x-ray polarimeter

Asami Hayato, Toru Tamagawa, Naoko Tsunoda, Shigehira Hashimoto, Masao Miyamoto, Mitsuhiro Kohama, Fuyuki Tokanai, Hideki Hamagaki, Masahide Inuzuka, Hiromasa Miyasaka, Ikuya Sakurai, Kazuo Makishima

Proceedings Volume 6266, 62663X (2006) https://doi.org/10.1117/12.671242

KEYWORDS: X-rays, Polarimetry, Polarization, Modulation, CMOS sensors, Photoelectric effect, Synchrotrons, X-ray detectors, Sensors, Mirrors

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Proceedings Article | 15 June 2006 Paper

Fine-pitch and thick-foil gas electron multipliers for cosmic x-ray polarimeters

Toru Tamagawa, Asami Hayato, Yorito Yamaguchi, Hideki Hamagaki, Shigehira Hashimoto, Masahide Inuzuka, Hiromasa Miyasaka, Ikuya Sakurai, Fuyuki Tokanai, Kazuo Makishima

Proceedings Volume 6266, 62663W (2006) https://doi.org/10.1117/12.671244

KEYWORDS: Copper, Gas lasers, X-rays, Electrodes, Polarimetry, Carbon monoxide, Etching, Liquid crystals, Polymers, Absorption

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Showing 5 of 28 publications

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