In-flight performance of the Canadian Astro-H Metrology System

Luigi C. Gallo; Alexander Koujelev; Stéphane Gagnon; Timothy Elgin; Martin Guibert; Ryo Iizuka; Manabu Ishida; Kosei Ishimura; Naoko Iwata; Taro Kawano; Casey Lambert; Franco Moroso; Shiro Ueno; Takayuki Yuasa

doi:10.1117/1.JATIS.4.2.021405

In-flight performance of the Canadian Astro-H Metrology System

Luigi C. Gallo^*, Alexander Koujelev, Stéphane Gagnon, Timothy Elgin, Martin Guibert, Ryo Iizuka, Manabu Ishida, Kosei Ishimura, Naoko Iwata, Taro Kawano, Casey Lambert, Franco Moroso, Shiro Ueno, Takayuki Yuasa

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

The Canadian Astro-H Metrology System (CAMS) on the Hitomi x-ray satellite is a laser alignment system that measures the lateral displacement (X/Y) of the extensible optical bench (EOB) along the optical axis of the hard x-ray telescopes (HXTs). The CAMS consists of two identical units that together can be used to discern translation and rotation of the deployable element along the axis. This paper presents the results of in-flight usage of the CAMS during deployment of the EOB and during two observations (Crab and G21.5-0.9) with the HXTs. The CAMS was extremely important during the deployment operation by providing real-time positioning information of the EOB with micrometer-scale resolution. We show how the CAMS improves data quality coming from the hard x-ray imagers. Moreover, we demonstrate that a metrology system is even more important as the angular resolution of the telescope increases. Such a metrology system will be an indispensable tool for future high-resolution x-ray imaging missions.

Original language	English
Article number	021405
Journal	Journal of Astronomical Telescopes, Instruments, and Systems
Volume	4
Issue number	2
DOIs	https://doi.org/10.1117/1.JATIS.4.2.021405
Publication status	Published - 2018 Apr 1
Externally published	Yes

Keywords

Canadian Astro-H Metrology System
Hitomi (Astro-H)
lasers
metrology system
optics
telescope alignment

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Control and Systems Engineering
Instrumentation
Astronomy and Astrophysics
Mechanical Engineering
Space and Planetary Science

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10.1117/1.JATIS.4.2.021405

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Gallo, L. C., Koujelev, A., Gagnon, S., Elgin, T., Guibert, M., Iizuka, R., Ishida, M., Ishimura, K., Iwata, N., Kawano, T., Lambert, C., Moroso, F., Ueno, S., & Yuasa, T. (2018). In-flight performance of the Canadian Astro-H Metrology System. Journal of Astronomical Telescopes, Instruments, and Systems, 4(2), Article 021405. https://doi.org/10.1117/1.JATIS.4.2.021405

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abstract = "The Canadian Astro-H Metrology System (CAMS) on the Hitomi x-ray satellite is a laser alignment system that measures the lateral displacement (X/Y) of the extensible optical bench (EOB) along the optical axis of the hard x-ray telescopes (HXTs). The CAMS consists of two identical units that together can be used to discern translation and rotation of the deployable element along the axis. This paper presents the results of in-flight usage of the CAMS during deployment of the EOB and during two observations (Crab and G21.5-0.9) with the HXTs. The CAMS was extremely important during the deployment operation by providing real-time positioning information of the EOB with micrometer-scale resolution. We show how the CAMS improves data quality coming from the hard x-ray imagers. Moreover, we demonstrate that a metrology system is even more important as the angular resolution of the telescope increases. Such a metrology system will be an indispensable tool for future high-resolution x-ray imaging missions.",

keywords = "Canadian Astro-H Metrology System, Hitomi (Astro-H), lasers, metrology system, optics, telescope alignment",

author = "Gallo, {Luigi C.} and Alexander Koujelev and St{\'e}phane Gagnon and Timothy Elgin and Martin Guibert and Ryo Iizuka and Manabu Ishida and Kosei Ishimura and Naoko Iwata and Taro Kawano and Casey Lambert and Franco Moroso and Shiro Ueno and Takayuki Yuasa",

note = "Funding Information: The authors are grateful to the entire CAMS team at the Canadian Space Agency and Neptec Design Group for their dedication to the project. We are also thankful to the JAXA team for their help in developing the CAMS. Thanks to Hans Krimm and Lorella Angelini for incorporating the CAMS correction into the pipeline. We are very appreciative to Professor Tadayuki Takahashi for his patience and leadership. LCG acknowledges funding from the Canadian Space Agency. The authors have no conflicts of interest to disclose. Funding Information: Commissioning uplinks and downlinks were also supported by Santiago Space Center (SNT). Publisher Copyright: {\textcopyright} 2018 The Authors.",

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doi = "10.1117/1.JATIS.4.2.021405",

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AU - Gallo, Luigi C.

AU - Koujelev, Alexander

AU - Gagnon, Stéphane

AU - Elgin, Timothy

AU - Guibert, Martin

AU - Iizuka, Ryo

AU - Ishida, Manabu

AU - Ishimura, Kosei

AU - Iwata, Naoko

AU - Kawano, Taro

AU - Lambert, Casey

AU - Moroso, Franco

AU - Ueno, Shiro

AU - Yuasa, Takayuki

N1 - Funding Information: The authors are grateful to the entire CAMS team at the Canadian Space Agency and Neptec Design Group for their dedication to the project. We are also thankful to the JAXA team for their help in developing the CAMS. Thanks to Hans Krimm and Lorella Angelini for incorporating the CAMS correction into the pipeline. We are very appreciative to Professor Tadayuki Takahashi for his patience and leadership. LCG acknowledges funding from the Canadian Space Agency. The authors have no conflicts of interest to disclose. Funding Information: Commissioning uplinks and downlinks were also supported by Santiago Space Center (SNT). Publisher Copyright: © 2018 The Authors.

PY - 2018/4/1

Y1 - 2018/4/1

N2 - The Canadian Astro-H Metrology System (CAMS) on the Hitomi x-ray satellite is a laser alignment system that measures the lateral displacement (X/Y) of the extensible optical bench (EOB) along the optical axis of the hard x-ray telescopes (HXTs). The CAMS consists of two identical units that together can be used to discern translation and rotation of the deployable element along the axis. This paper presents the results of in-flight usage of the CAMS during deployment of the EOB and during two observations (Crab and G21.5-0.9) with the HXTs. The CAMS was extremely important during the deployment operation by providing real-time positioning information of the EOB with micrometer-scale resolution. We show how the CAMS improves data quality coming from the hard x-ray imagers. Moreover, we demonstrate that a metrology system is even more important as the angular resolution of the telescope increases. Such a metrology system will be an indispensable tool for future high-resolution x-ray imaging missions.

AB - The Canadian Astro-H Metrology System (CAMS) on the Hitomi x-ray satellite is a laser alignment system that measures the lateral displacement (X/Y) of the extensible optical bench (EOB) along the optical axis of the hard x-ray telescopes (HXTs). The CAMS consists of two identical units that together can be used to discern translation and rotation of the deployable element along the axis. This paper presents the results of in-flight usage of the CAMS during deployment of the EOB and during two observations (Crab and G21.5-0.9) with the HXTs. The CAMS was extremely important during the deployment operation by providing real-time positioning information of the EOB with micrometer-scale resolution. We show how the CAMS improves data quality coming from the hard x-ray imagers. Moreover, we demonstrate that a metrology system is even more important as the angular resolution of the telescope increases. Such a metrology system will be an indispensable tool for future high-resolution x-ray imaging missions.

KW - Canadian Astro-H Metrology System

KW - Hitomi (Astro-H)

KW - lasers

KW - metrology system

KW - optics

KW - telescope alignment

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ER -

In-flight performance of the Canadian Astro-H Metrology System

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Keywords

ASJC Scopus subject areas

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