title: Algorithms for Imaging Atmospheric Cherenkov Telescopes
creator: Marx, Ramin
subject: ddc-004
subject: 004 Data processing Computer science
subject: ddc-500
subject: 500 Natural sciences and mathematics
subject: ddc-520
subject: 520 Astronomy and allied sciences
subject: ddc-530
subject: 530 Physics
description: Imaging Atmospheric Cherenkov Telescopes (IACTs) are complex instruments for ground-based γ-ray astronomy and require sophisticated software for the handling of the measured data.  In part one of this work, a modular and efficient software framework is presented that allows to run the complete  chain from reading the raw data from the telescopes, over calibration, background reduction and reconstruction, to  the sky maps. Several new methods and fast algorithms have been developed and are presented.  Furthermore, it was found that the currently used file formats in IACT experiments are not optimal in terms of  flexibility and I/O speed. Therefore, in part two a new file format was developed, which allows to store the camera  and subsystem data in all its complexity. It offers fast lossy and lossless compression optimized for the high data  rates of IACT experiments.  Since many other scientific experiments also struggle with enormous data rates, the compression algorithm was further optimized and generalized, and is now able to efficiently compress the data of other experiments as well.  Finally, for those who prefer to store their data as ASCII text, a fast I/O scheme is presented, including the necessary compression and conversion routines.  Although the second part of this thesis is very technical, it might still be interesting for scientists designing an experiment with high data rates.
date: 2022
type: Dissertation
type: info:eu-repo/semantics/doctoralThesis
type: NonPeerReviewed
format: application/pdf
identifier: https://archiv.ub.uni-heidelberg.de/volltextserverhttps://archiv.ub.uni-heidelberg.de/volltextserver/31260/1/drarbeit.pdf
identifier: DOI:10.11588/heidok.00031260
identifier: urn:nbn:de:bsz:16-heidok-312603
identifier:   Marx, Ramin  (2022) Algorithms for Imaging Atmospheric Cherenkov Telescopes.  [Dissertation]     
relation: https://archiv.ub.uni-heidelberg.de/volltextserver/31260/
rights: info:eu-repo/semantics/openAccess
rights: Please see front page of the work (Sorry, Dublin Core plugin does not recognise license id)
language: eng