Integral shell mirrors for the Constellation X-ray mission hard x-ray telescope

Paul Gorenstein; Adrian Ivan; Ricardo J. Bruni; Suzanne E. Romaine; Francesco Mazzoleni; Giovanni Pareschi; Mauro Ghigo; Oberto Citterio

doi:10.1117/12.407562

28 November 2000 Integral shell mirrors for the Constellation X-ray mission hard x-ray telescope

Paul Gorenstein, Adrian Ivan, Ricardo J. Bruni, Suzanne E. Romaine, Francesco Mazzoleni, Giovanni Pareschi, Mauro Ghigo, Oberto Citterio

Author Affiliations +

Proceedings Volume 4138, X-Ray Optics, Instruments, and Missions IV; (2000) https://doi.org/10.1117/12.407562
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

Abstract

Estimates of background in CZT detectorsi indicate that even with the beneficial concentration of a focussing telescope measurements in the 20 to 100 keV band of the Constellation X-ray Mission's HXT will become background limited after several thousand seconds of observing. This time is less than the expected exposure of most measurements. Consequently the sensitivity of most if not all observations of the HXT will be background limited. Therefore, the angular resolution should be as good as possible as long as the effective area remains high. We are pursuing a method for fabricating telescopes for thetwelve units of HXT that consists of electroforming integral shell substrates, a process that has been highly developed for XMM. We are attempting to adapt this method to higher energy X-rays by employing multilayer coatings, and smaller graze angles, and also reduce the mass of the telescopes from the XMM prescription by employing stronger, lighter alloys. The resolution that XMM has achieved, 15" HPW is an indication of the resolution we can expect.

Citation Download Citation

Paul Gorenstein, Adrian Ivan, Ricardo J. Bruni, Suzanne E. Romaine, Francesco Mazzoleni, Giovanni Pareschi, Mauro Ghigo, and Oberto Citterio "Integral shell mirrors for the Constellation X-ray mission hard x-ray telescope", Proc. SPIE 4138, X-Ray Optics, Instruments, and Missions IV, (28 November 2000); https://doi.org/10.1117/12.407562

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