First measurement of the ASTRO-H soft x-ray telescope performance

Takashi Okajima; Peter J. Serlemitsos; Yang Soong; Devin J. Hahne

doi:10.1117/12.926443

17 September 2012 First measurement of the ASTRO-H soft x-ray telescope performance

Takashi Okajima, Peter J. Serlemitsos, Yang Soong, Devin J. Hahne

Proceedings Volume 8443, Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray; 844320 (2012) https://doi.org/10.1117/12.926443
Event: SPIE Astronomical Telescopes + Instrumentation, 2012, Amsterdam, Netherlands

Abstract

ASTRO-H is a Japanese X-ray astrophysics satellite under the development led by Japan and US. It will have two Soft X-ray Telescopes (SXTs), among other instruments, that are being developed by NASA's Goddard Space Flight Center. One is for an X-ray micro-calorimeter instrument and the other for an X-ray CCD camera, both covering the X-ray energy band below 15 keV. The SXT Engineering Model (EM) quadrant was successfully completed and has shown big improvements in the X-ray performance from Suzaku owing to number of changes made. The EM was tested at the Goddard 100-m X-ray beamline (diverging beam) and the ISAS/JAXA beamline (pencil beam scan). The angular resolution was found to be 1.1 arcmin at Goddard, while 1.27 arcmin at ISAS, and the effective area was 157 and 122 cm² at 1 and 6 keV, respectively. The discrepancy in the angular resolution can be explained by the difference of the measurement method, i.e. the diverging beam vs. the pencil beam scan. The development of the first Flight Model (FM) is underway. The first three quadrants are completed so far and show about 1 arcmin (HPD) angular resolution. We expect that the first FM SXT will have about 1 arcmin resolution, which will be completed in September, 2012.

Citation Download Citation

Takashi Okajima, Peter J. Serlemitsos, Yang Soong, and Devin J. Hahne "First measurement of the ASTRO-H soft x-ray telescope performance", Proc. SPIE 8443, Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray, 844320 (17 September 2012); https://doi.org/10.1117/12.926443

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