Gamma-ray focusing telescope based on high reflective Ge and Si mosaic crystals

M. Kozhukh; A. E. Bolotnikov; W. Kane

doi:10.1117/12.620378

10 September 2005 Gamma-ray focusing telescope based on high reflective Ge and Si mosaic crystals

M. Kozhukh, A. E. Bolotnikov, W. Kane

Proceedings Volume 5900, Optics for EUV, X-Ray, and Gamma-Ray Astronomy II; 590017 (2005) https://doi.org/10.1117/12.620378
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

Abstract

A focusing gamma-ray telescope based upon perfect crystals was originally proposed for astrophysical observations in 1990s. However, the high angular resolution/low integral reflectivity of the perfect crystals employed made these types of optics less attractive for astrophysics than grazing incidence multilayer mirrors. Unlike astrophysical applications, the long-range detection of nuclear materials requires modest angular resolution and narrow energy bandwidth (or several narrow bands) at specific gamma-lines emitted from nuclear materials. A development of large high gamma-reflective Ge and Si mosaic crystals makes the use of a diffraction mosaic gamma-telescope for long-distance detection of nuclear materials, as well as for astrophysics, a distinct possibility. This paper describes gammareflectivity results for Ge mosaic crystals in the range of 100-300 keV and a gamma-ray focusing telescope design based on the Ge and Si mosaic crystals with mosaicity in range of 1-15 arc minutes both for long-range detection of nuclear materials and astrophysics.

Citation Download Citation

M. Kozhukh, A. E. Bolotnikov, and W. Kane "Gamma-ray focusing telescope based on high reflective Ge and Si mosaic crystals", Proc. SPIE 5900, Optics for EUV, X-Ray, and Gamma-Ray Astronomy II, 590017 (10 September 2005); https://doi.org/10.1117/12.620378

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