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Proceedings Paper

SWIFT XRT point spread function measured at the Panter end-to-end tests
Author(s): Alberto Moretti; Sergio Campana; Gianpiero Tagliaferri; Anthony F. Abbey; Richard M. Ambrosi; Lorella Angelini; Andrew P. Beardmore; Heinrich W. Brauninger; Wolfgang Burkert; David N. Burrows; Milvia Capalbi; Guido Chincarini; Oberto Citterio; Giancarlo Cusumano; Michael J. Freyberg; Paolo Giommi; Gisela D. Hartner; Joanne E. Hill; Koji Mori; Dave C. Morris; Kallol Mukerjee; John A. Nousek; Julian P. Osborne; Alexander D. T. Short; Francesca Tamburelli; D. J. Watson; Alan A. Wells
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Paper Abstract

The SWIFT X-ray Telescope (XRT) is designed to make astrometric, spectroscopic and photometric observations of the X-ray emission from Gamma-ray bursts and their afterglows, in the energy band 0.2 - 10 keV. Here we report the results of the analysis of SWIFT XRT Point Spread Function (PSF) as measured during the end-to-end calibration campaign at the Panter X-Ray beam line facility. The analysis comprises the study of the PSF both on-axis and off-axis. We compare the laboratory results with the expectations from the ray-tracing software and from the mirror module tested as a single unit. We show that the measured HEW meets the mission scientific requirements. On the basis of the calibration data we build an analytical model which is able to reproduce the PSF as a function of the energy and the position within the detector.

Paper Details

Date Published: 3 February 2004
PDF: 9 pages
Proc. SPIE 5165, X-Ray and Gamma-Ray Instrumentation for Astronomy XIII, (3 February 2004); doi: 10.1117/12.504857
Show Author Affiliations
Alberto Moretti, Osservatorio Astronomico di Brera (Italy)
Sergio Campana, Osservatorio Astronomico di Brera (Italy)
Gianpiero Tagliaferri, Osservatorio Astronomico di Brera (Italy)
Anthony F. Abbey, Univ. of Leicester (United Kingdom)
Richard M. Ambrosi, Univ. of Leicester (United Kingdom)
Lorella Angelini, NASA Goddard Space Flight Ctr. (United States)
USRA (United States)
Andrew P. Beardmore, Univ. of Leicester (United Kingdom)
Heinrich W. Brauninger, Max-Planck-Institut fuer extraterrestrische Physik (Germany)
Wolfgang Burkert, Max-Planck-Institut fuer extraterrestrische Physik (Germany)
David N. Burrows, The Pennsylvania State Univ. (United States)
Milvia Capalbi, Agenzia Spaziale Italiana (Italy)
Guido Chincarini, Osservatorio Astronomico di Brera (Italy)
Oberto Citterio, Osservatorio Astronomico di Brera (Italy)
Giancarlo Cusumano, Istituto di Fisica Cosmica ed Applicazione dell Informatica, CNR (Italy)
Michael J. Freyberg, Max-Planck-Institut fuer extraterrestrische Physik (Germany)
Paolo Giommi, Agenzia Spaziale Italiana (Italy)
Gisela D. Hartner, Max-Planck-Institut fuer extraterrestrische Physik (Germany)
Joanne E. Hill, The Pennsylvania State Univ. (United States)
Koji Mori, The Pennsylvania State Univ. (United States)
Dave C. Morris, The Pennsylvania State Univ. (United States)
Kallol Mukerjee, Univ. of Leicester (United Kingdom)
John A. Nousek, The Pennsylvania State Univ. (United States)
Julian P. Osborne, Univ. of Leicester (United Kingdom)
Alexander D. T. Short, Univ. of Leicester (United Kingdom)
Francesca Tamburelli, Agenzia Spaziale Italiana (Italy)
D. J. Watson, Univ. of Leicester (United Kingdom)
Alan A. Wells, Univ. of Leicester (United Kingdom)

Published in SPIE Proceedings Vol. 5165:
X-Ray and Gamma-Ray Instrumentation for Astronomy XIII
Kathryn A. Flanagan; Oswald H. W. Siegmund, Editor(s)

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