APD-based x-ray imaging telescope using Fresnel zone plates for extremely high spatial resolution

Michael R. Squillante; Richard A. Myers; Mitchell Woodring; James F. Christian; Frank Robertson; Richard Farrell; Alexander I. Kogan; Timothy C. Tiernan; Gerald Entine

doi:10.1117/12.618452

21 September 2005 APD-based X-ray imaging telescope using fresnel zone plates for extremely high Spatial Resolution

Michael R. Squillante, Richard A. Myers, Mitchell Woodring, James F. Christian, Frank Robertson, Richard Farrell, Alexander I. Kogan, Timothy C. Tiernan, Gerald Entine

Author Affiliations +

Proceedings Volume 5923, Penetrating Radiation Systems and Applications VII; 59230Q (2005) https://doi.org/10.1117/12.618452
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

Abstract

A method for constructing an x-ray telescope with exceedingly hgh spatial resolution is to use a pair of coaxial, Fresnel zone plates aligned with an imaging x-ray detector. This combination allows the high sensitivity imaging of x-ray and gamma-ray sources ranging in energy from 1 keV to several hundred keV over a field of view of several degrees with spatial resolution of a fraction of an arc minute. We have implemented a version of such a telescope using several relatively new technologies. These include specialized techniques for constructing Fresnel zone plates from thin sheets of tungsten, a 64-element, avalanche photodiode (APD) array coupled to a matching, segmented, CsI(T1) scintillator, a new ASIC which provides 16-channels of low noise amplification, and image processing software that provides the user not only with localized intensity information, but also with localized spectral information.

Citation Download Citation

Michael R. Squillante, Richard A. Myers, Mitchell Woodring, James F. Christian, Frank Robertson, Richard Farrell, Alexander I. Kogan, Timothy C. Tiernan, and Gerald Entine "APD-based X-ray imaging telescope using fresnel zone plates for extremely high Spatial Resolution", Proc. SPIE 5923, Penetrating Radiation Systems and Applications VII, 59230Q (21 September 2005); https://doi.org/10.1117/12.618452

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