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    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/joaa/042/0076

    • Keywords

       

      Coded mask imaging; X-ray; AstroSat; CZT imager.

    • Abstract

       

      AstroSat is India’s first space-based astronomical observatory, launched on September 28, 2015. One of the payloads aboard AstroSat is the Cadmium Zinc Telluride Imager (CZTI), operating at hard X-rays. CZTI employs a two-dimensional coded aperture mask for the purpose of imaging. In this paper, we discuss various image reconstruction algorithms adopted for the test and calibration of the imaging capability of CZTI and present results from CZTI on-ground as well as in-orbit image calibration.

    • Author Affiliations

       

      AJAY VIBHUTE1 2 DIPANKAR BHATTACHARYA2 N. P. S. MITHUN3 V. BHALERAO4 A. R. RAO5 S. V. VADAWALE3

      1. Savitribai Phule Pune University, Pune 411 007, India.
      2. Inter-University Centre for Astronomy and Astrophysics (IUCAA), Post Bag 4, Ganeshkhind, Pune 411 007, India.
      3. Physical Research Laboratory, Ahmedabad 380 009, India.
      4. Indian Institute of Technology Bombay, Mumbai 400 076, India.
      5. Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400 005, India.

    • Dates

       
      Published
      16 July 2021
      Manuscript received
      2 November 2020
      Accepted
      26 April 2021
      Final version published online
      16 July 2021

  • Journal of Astrophysics and Astronomy | News

    • Continuous Article Publication

      Posted on January 27, 2016

      Since January 2016, the Journal of Astrophysics and Astronomy has moved to Continuous Article Publishing (CAP) mode. This means that each accepted article is being published immediately online with DOI and article citation ID with starting page number 1. Articles are also visible in Web of Science immediately. All these have helped shorten the publication time and have improved the visibility of the articles.

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