Name: Mithun N. P. S.
Affiliation: Physical Research Laboratory, Ahmedabad
Conference ID : ASI2022_525
Title : Updates on Hard X-ray Spectroscopy with AstroSat CZT-Imager
Authors : N. P. S. Mithun, Santosh V. Vadawale, D. Bhattacharya, Ajay Vibhute, A. R. Rao, V. B. Bhalerao, T. Chattopadhyay
Abstract Type: Poster
Abstract Category : Instrumentation and Techniques
Abstract : Cadmium Zinc Telluride Imager (CZTI) onboard the AstroSat mission carries out spectroscopy in the hard X-ray energy range of 25-200 keV. CZTI employs a coded aperture mask that allows indirect imaging and simultaneous background measurement for spectroscopy. Using the in-flight data acquired over six years, we re-examine the spectral calibration of CZTI. Here we present the recent updates in the calibration database of CZTI, the improvements made in the spectral extraction and response generation algorithms, and validation against the canonical spectral model for observations of the standard source Crab.