Dr. Ephraim Gau Profile

Dr. Ephraim Gau

at Washington Univ in St Louis

SPIE Involvement:

Author

Publications (6)

Proceedings Article | 5 October 2023 Poster + Paper

Characterization of the x-ray telescope after the first flight of XL-Calibur

H. Kuramoto, H. Matsumoto, H. Awaki, R. Bose, D. Braun, S. Chun, G. De Geronimo, Eric W., M. Errando, Y. Fukazawa, A. Furusawa, T. Gadson, E. Gau, V. Guarino, S. Gunji, K. Harmon, S. Heatwole, A. Hossen, K. Ishibashi, M. Ishida, N. K. Iyer, W. Kamogawa, F. Kislat, M. Kiss, H. Krawczynski, J. Lanzi, L. Lisalda, Y. Maeda, A. Miyamoto, T. Miyazawa, T. Okajima, M. Pearce, Z. Peterson, B. Rauch, N. Rodriguez Cavero, F. Ryde, G. Simburger, S. Spooner, T.-A. Stana, D. Stuchlik, H. Takahashi, M. Takeo, T. Tamagawa, Y. Uchida, A. West

Proceedings Volume 12679, 126791B (2023) https://doi.org/10.1117/12.2676572

KEYWORDS: X-ray telescopes, Telescopes, Hard x-rays, X-rays, X-ray optics, Synchrotrons, Reflector telescopes, Reflection, Polarimetry, Point spread functions

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SPIE Journal Paper | 12 May 2023

511-CAM mission: a pointed 511 keV gamma-ray telescope with a focal plane detector made of stacked transition edge sensor microcalorimeter arrays

Farzane Shirazi, Ephraim Gau, Md. Arman Hossen, Daniel Becker, Daniel Schmidt, Daniel Swetz, Douglas Bennett, Dana Braun, Fabian Kislat, Johnathon Gard, John Mates, Joel Weber, Nicole Rodriguez Cavero, Sohee Chun, Lindsey Lisalda, Andrew West, Bhupal Dev, Francesc Ferrer, Richard Bose, Joel Ullom, Henric Krawczynski

JATIS, Vol. 9, Issue 02, 024006, (May 2023) https://doi.org/10.1117/12.10.1117/1.JATIS.9.2.024006

KEYWORDS: Bismuth, Gamma radiation, Telescopes, Tin, Channel projecting optics, Photons, Crystals, Detector arrays, Simulations, Balloons

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SPIE Journal Paper | 1 February 2023

ASCENT: a balloon-borne hard x-ray imaging spectroscopy telescope using transition edge sensor microcalorimeter detectors

Fabian Kislat, Daniel Becker, Douglas Bennett, Adrika Dasgupta, Joseph Fowler, Christopher L. Fryer, Jonathon Gard, Ephraim Gau, Danielle Gurgew, Keon Harmon, Takayuki Hayashi, Scott Heatwole, Md. Arman Hossen, Henric Krawczynski, R. James Lanzi, Jason Legere, John A.B. Mates, Mark McConnell, Johanna Nagy, Takashi Okajima, Toshiki Sato, Daniel Schmidt, Sean Spooner, Daniel Swetz, Keisuke Tamura, Joel Ullom, Joel Weber, Amanda Wester, Patrick Young

JATIS, Vol. 9, Issue 01, 014002, (February 2023) https://doi.org/10.1117/12.10.1117/1.JATIS.9.1.014002

KEYWORDS: Calcium, X-ray telescopes, Imaging spectroscopy, X-rays, Hard x-rays, Design and modelling, Gamma radiation, Iron, Calibration, Detector arrays

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Proceedings Article | 31 August 2022 Poster + Paper

Optical performance of the x-ray telescope for the XL-Calibur experiment

W. Kamogawa, H. Matsumoto, Q. Abarr, H. Awaki, R. Bose, D. Braun, G. de Geronimo, P. Dowkontt, T. Enoto, M. Errando, Y. Fukazawa, A. Furuzawa, T. Gadson, E. Gau, V. Guarino, S. Gunji, K. Harmon, K. Hayashida, S. Heatwole, F. Imazato, K. Ishibashi, M. Ishida, N. Iyer, F. Kislat, M. Kiss, T. Kitaguchi, H. Krawczynski, J. Lanzi, L. Lisalda, Y. Maeda, H. Matake, T. Mineta, T. Miyazawa, T. Mizuno, T. Okajima, M. Pearce, Z. Peterson, B. Rauch, N. Rodriguez Cavero, F. Ryde, T.-A. Stana, D. Stuchlik, G. Simburgeb, S. Spooner, H. Takahashi, T. Takeda, M. Takeo, T. Tamagawa, H. Tsunemi, N. Uchida, Y. Uchida, K. Uchiyama, A. West, E. Wulf, Y. Yoshida

Proceedings Volume 12181, 1218171 (2022) https://doi.org/10.1117/12.2626537

KEYWORDS: X-ray telescopes, X-rays, Telescopes, Vignetting, Mirrors, Image segmentation, X-ray optics, Point spread functions, Hard x-rays

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Proceedings Article | 1 August 2021 Presentation

NIST microcalorimeter arrays for the hard x-ray and γ-ray astronomy

Md. Arman Hossen, D. Becker, D. Bennett, B. Dober, J. Fowler, J. Gard, E. Gau, J. Hays-Wehle, G. Hilton, F. Kislat, H. Krawczynski, B. Mates, J. Nagy, C. Reintsema, D. Schmidt, D. Swetz, J. Ullom, L. Vale, T. Okajima

Proceedings Volume 11838, 118380X (2021) https://doi.org/10.1117/12.2594652

KEYWORDS: X-ray astronomy, Hard x-rays, Sensors, Astronomy, Microwave radiation, X-rays, X-ray detectors, Tin, Resonators, Prototyping

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Showing 5 of 6 publications

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