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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/6680
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dc.contributor.authorYadav, J.S.-
dc.contributor.authorAgrawal, P.C.-
dc.contributor.authorPaul, Biswajit-
dc.contributor.author+9 Co-authors-
dc.date.accessioned2017-07-24T07:05:08Z-
dc.date.available2017-07-24T07:05:08Z-
dc.date.issued2016-09-
dc.identifier.citationProceedings of the SPIE Vol. 9905, p99051D-1- 2016 , Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray, Edited by TJan-Willem A. den Herder; Tadayuki Takahashi & Marshall Bautzen_US
dc.identifier.isbn9781510601895-
dc.identifier.urihttp://hdl.handle.net/2289/6680-
dc.descriptionRestricted Access.en_US
dc.description.abstractASTROSAT, India's first dedicated astronomy space mission was launched on September 28, 2015. The Large Area X-ray Proportional Counter (LAXPC) is one of the major payloads on ASTROSAT. A cluster of three co-aligned identical LAXPC detectors provide large area of collection .The large detection volume (15 cm depth) filled with mixture of xenon gas (90(%) and methane (10%) at ~ 2 atmospheres pressure, results in detection efficiency greater than 50%, above 30 keV. The LAXPC instrument is best suited for X-ray timing and spectral studies. It will provide the largest effective area in 3-80 keV range among all the satellite missions flown so far worldwide and will remain so for the next 5-10 years. The LAXPC detectors have been calibrated using radioactive sources in the laboratory. GEANT4 simulation for LAXPC detectors was carried out to understand detector background and its response. The LAXPC instrument became fully operational on 19th October 2015 for the first time in space. We have performed detector calibration in orbit. The LAXPC instrument is functioning well and has achieved all detector parameters proposed initially. In this paper, we will describe LAXPC detector calibration in lab as well as in orbit along with first results.en_US
dc.language.isoenen_US
dc.publisherSPIE - The International Society for Optics and Photonicsen_US
dc.relation.urihttp://dx.doi.org/10.1117/12.2231857en_US
dc.rights2016 SPIEen_US
dc.subjectX-rays and radioen_US
dc.subjectX-ray space instrumenten_US
dc.subjectMicro quasarsen_US
dc.subjectdetector calibrationen_US
dc.titleLarge Area X-ray proportional counter (LAXPC) instrument onboard ASTROSATen_US
dc.typeBook chapteren_US
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