Development of focal plane x-ray detector aboard a microsatellite for monitoring supermassive blackholes

Hiroshi Nakajima; Satomi Onishi; Jun-ichi Iwagaki; Junko S. Hiraga; John P. Doty; Hirokazu Ikeda; Yuichiro Ezoe; Naoki Isobe; Hironori Sahara

doi:10.1117/12.2311990

6 July 2018 Development of focal plane x-ray detector aboard a microsatellite for monitoring supermassive blackholes

Hiroshi Nakajima, Satomi Onishi, Jun-ichi Iwagaki, Junko S. Hiraga, John P. Doty, Hirokazu Ikeda, Yuichiro Ezoe, Naoki Isobe, Hironori Sahara

Author Affiliations +

Proceedings Volume 10699, Space Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray; 1069963 (2018) https://doi.org/10.1117/12.2311990
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

Abstract

We describe the development of the focal plane detector onboard a micro-satellite aimed for observing cosmic Xray emission. Combined with an X-ray optics with focal length of approximately 40 mm, an X-ray CCD camera realizes low and stable background thanks to its capability of event classification by pulse height distribution of a event. The mission will intensively monitor a specific binary black hole to investigate periodic time variability owing to its possible binary motion. The focal plane detector adopts P-channel back-illumination type CCD. It is a miniature version of the sensors utilized in the CCD camera aboard Hitomi satellite but is upgraded in terms of the energy resolution and the prevention of visible light transmittance. We have built up an equipment for cooling and driving the device. Dark current as a function of device temperature is investigated. We see clear difference of the amount of the dark current between the imaging area and frame store area, which is probably due to the difference of the pixel size. The result indicates sufficiently low dark current can be achieved with temperature lower or equal to -80 °C. Number of pinholes in a surface aluminium layer is significantly different between devices. We identified a process with which we decrease the number of pinholes. To realize a whole instrument, we develop communication board and compact analog board.

Citation Download Citation

Hiroshi Nakajima, Satomi Onishi, Jun-ichi Iwagaki, Junko S. Hiraga, John P. Doty, Hirokazu Ikeda, Yuichiro Ezoe, Naoki Isobe, and Hironori Sahara "Development of focal plane x-ray detector aboard a microsatellite for monitoring supermassive blackholes", Proc. SPIE 10699, Space Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray, 1069963 (6 July 2018); https://doi.org/10.1117/12.2311990

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
6 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Detector development

X-ray detectors

Satellites

Sensors

Charge-coupled devices

CCD image sensors

Electronics

Show All Keywords

Keywords/Phrases

Search In:

Publication Years