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Proceedings Paper

RINGO2: an EMCCD-based polarimeter for GRB followup
Author(s): I. A. Steele; S. D. Bates; C. Guidorzi; C. J. Mottram; C. G. Mundell; R. J. Smith
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Paper Abstract

We describe the design and construction of a new novel optical polarimeter (RINGO2) for the Liverpool Telescope. The instrument is designed for rapid (< 3 minute) followup observations of Gamma Ray Bursts in order to measure the early time polarization and time evolution on timescales of ~ 1 - 10000 seconds. By using a fast rotating Polaroid whose rotation is synchronized to control the readout of an electron multiplying CCD eight times per revolution, we can rebin our data in the time domain after acquisition with little noise penalty, thereby allowing us to explore the polarization evolution of these rapidly variable objects for the first time.

Paper Details

Date Published: 20 July 2010
PDF: 12 pages
Proc. SPIE 7735, Ground-based and Airborne Instrumentation for Astronomy III, 773549 (20 July 2010); doi: 10.1117/12.856842
Show Author Affiliations
I. A. Steele, Liverpool John Moores Univ. (United Kingdom)
S. D. Bates, Liverpool John Moores Univ. (United Kingdom)
C. Guidorzi, Univ. of Ferrara (Italy)
C. J. Mottram, Liverpool John Moores Univ. (United Kingdom)
C. G. Mundell, Liverpool John Moores Univ. (United Kingdom)
R. J. Smith, Liverpool John Moores Univ. (United Kingdom)


Published in SPIE Proceedings Vol. 7735:
Ground-based and Airborne Instrumentation for Astronomy III
Ian S. McLean; Suzanne K. Ramsay; Hideki Takami, Editor(s)

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