Large Area X-Ray Proportional Counter (LAXPC) Instrument on AstroSat and Some Preliminary Results from its Performance in the Orbit View Full Text


Ontology type: schema:ScholarlyArticle      Open Access: True


Article Info

DATE

2017-06-19

AUTHORS

P. C. Agrawal, J. S. Yadav, H. M. Antia, Dhiraj Dedhia, P. Shah, Jai Verdhan Chauhan, R. K. Manchanda, V. R. Chitnis, V. M. Gujar, Tilak Katoch, V. N. Kurhade, P. Madhwani, T. K. Manojkumar, V. A. Nikam, A. S. Pandya, J. V. Parmar, D. M. Pawar, Jayashree Roy, B. Paul, Mayukh Pahari, Ranjeev Misra, M. H. Ravichandran, K. Anilkumar, C. C. Joseph, K. H. Navalgund, R. Pandiyan, K. S. Sarma, K. Subbarao

ABSTRACT

Large area X-ray propositional counter (LAXPC) instrument on AstroSat is aimed at providing high time resolution X-ray observations in 3–80 keV energy band with moderate energy resolution. To achieve large collecting area, a cluster of three co-aligned identical LAXPC detectors, is used to realize an effective area in access of ∼6000cm2\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\sim }6000\,\hbox {cm}^{2}$$\end{document} at 15 keV. The large detection volume of the LAXPC detectors, filled with xenon gas at ∼\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\sim }$$\end{document}2 atmosphere pressure, results in detection efficiency greater than 50%, above 30 keV. In this article, we present salient features of the LAXPC detectors, their testing and characterization in the laboratory prior to launch and calibration in the orbit. Some preliminary results on timing and spectral characteristics of a few X-ray binaries and other type of sources, are briefly discussed to demonstrate that the LAXPC instrument is performing as planned in the orbit. More... »

PAGES

30

References to SciGraph publications

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s12036-017-9451-z

DOI

http://dx.doi.org/10.1007/s12036-017-9451-z

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1086105305


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