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The PMTRAS Roll Aspect System on RHESSI View all abstracts by submitter

Gordon J. Hurford   Submitted: 2002-09-19 14:48

High-resolution solar hard X-ray imaging on the Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI) spacecraft is achieved by a set of rotating modulation collimators. The interpretation of the observed time-modulated X-ray flux in terms of high-resolution, accurately located images requires continuous, arcminute roll aspect, which at present is provided by the 'Photo-Multiplier Tube Roll Aspect System' (PMTRAS). This paper describes the PMTRAS operating principles, hardware implementation, calibration, performance and data analysis approach, with emphasis on its effect on RHESSI imaging.

Authors: G. J. Hurford and D. W. Curtis
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Publication Status: Solar Physics (in press)
Last Modified: 2002-09-23 17:09
Go to main E-Print page  Modeling Images and Spectra of a Solar Flare Observed by RHESSI on 20 February 2002  The RHESSI Imaging Concept  Edit Entry  Download Preprint  Delete Entry 

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