Nandi, Anuj ; Palit, S. ; Debnath, D. ; Chakrabarti, Sandip K. ; Kotoch, T. B. ; Sarkar, R. ; Yadav, Vipin K. ; Girish, V. ; Rao, A. R. ; Bhattacharya, D. (2011) Instruments of RT-2 experiment onboard CORONAS-PHOTON and their test and evaluation III: Coded Aperture Mask and Fresnel Zone Plates in RT-2/CZT payload Experimental Astronomy, 29 (1-2). pp. 55-84. ISSN 0922-6435
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Official URL: http://www.springerlink.com/content/c2n71x26424662...
Related URL: http://dx.doi.org/10.1007/s10686-010-9184-3
Abstract
Imaging in hard X-rays of any astrophysical source with high angular resolution is a challenging job. Shadow-casting technique is one of the most viable options for imaging in hard X-rays. We have used two different types of shadow-casters, namely, Coded Aperture Mask (CAM) and Fresnel Zone Plate (FZP) pair and two types of pixellated solid-state detectors, namely, CZT and CMOS in RT-2/CZT payload, the hard X-ray imaging instrument onboard the CORONAS-PHOTON satellite. In this paper, we present the results of simulations with different combinations of coders (CAM & FZP) and detectors that are employed in the RT-2/CZT payload. We discuss the possibility of detecting transient Solar flares with good angular resolution for various combinations. Simulated results are compared with laboratory experiments to verify the consistency of the designed configuration.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Springer. |
| Keywords: | Zone Plates; X- and Gamma-ray Telescopes and Instrumentation; Fourier Optics; X-ray Imaging |
| ID Code: | 85579 |
| Deposited On: | 03 Mar 2012 14:54 |
| Last Modified: | 03 Mar 2012 14:54 |
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