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Ctapipe - Prototype Open Event Reconstruction Pipeline for the Cherenkov Telescope Array

Linhoff, M. ; Carlile, C. LU ; Dravins, D. LU orcid and Nickel, L. (2024) 38th International Cosmic Ray Conference, ICRC 2023 In Proceedings of Science 444.
Abstract
The Cherenkov Telescope Array Observatory (CTAO) is the next-generation ground-based gamma-ray observatory currently under construction. It will improve over the current generation of imaging atmospheric Cherenkov telescopes (IACTs) by a factor of five to ten in sensitivity and it will be able to observe the whole sky from a combination of two sites: a northern site in La Palma, Spain, and a southern one in Paranal, Chile. CTAO will also be the first open ground-based gamma-ray observatory. Accordingly, the CTAO data processing pipeline is developed as open-source software and ctapipe will be a core package therein. The event reconstruction pipeline accepts raw data of the telescopes and processes it to produce suitable input for the... (More)
The Cherenkov Telescope Array Observatory (CTAO) is the next-generation ground-based gamma-ray observatory currently under construction. It will improve over the current generation of imaging atmospheric Cherenkov telescopes (IACTs) by a factor of five to ten in sensitivity and it will be able to observe the whole sky from a combination of two sites: a northern site in La Palma, Spain, and a southern one in Paranal, Chile. CTAO will also be the first open ground-based gamma-ray observatory. Accordingly, the CTAO data processing pipeline is developed as open-source software and ctapipe will be a core package therein. The event reconstruction pipeline accepts raw data of the telescopes and processes it to produce suitable input for the higher-level science tools. Its primary tasks include reconstructing the physical properties of each recorded air shower and providing the corresponding instrument response functions. ctapipe is a python framework providing algorithms and command-line tools to facilitate raw data calibration, image extraction, image parametrization and event reconstruction. Its current main focus is the analysis of simulated data but it has also been successfully applied for the analysis of data obtained with the CTA prototype telescopes, and first science results have now been obtained by the LST-1 collaboration using ctapipe. A plugin system also allows the processing of nonCTA data. Recent updates, including event reconstruction using machine learning and a new plugin system as well as the roadmap towards a 1.0 release will be presented. © Copyright owned by the author(s) under the terms of the Creative Commons. (Less)
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author
; ; and
author collaboration
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Airborne telescopes, Cosmic ray detectors, Cosmology, Network security, Optical telescopes, Photons, Pipeline processing systems, Problem oriented languages, Space telescopes, Cherenkov telescope arrays, Current generation, Data processing pipelines, Event reconstruction, Gamma ray observatories, Ground based, Imaging atmospheric Cherenkov telescopes, Open-source softwares, Paranal, Plug-ins, Open source software
host publication
Proceedings of the 38th International Cosmic Ray Conference (ICRC2023)
series title
Proceedings of Science
volume
444
article number
703
conference name
38th International Cosmic Ray Conference, ICRC 2023
conference location
Nagoya, Japan
conference dates
2023-07-26 - 2023-08-03
external identifiers
  • scopus:85212273771
ISSN
1824-8039
DOI
10.22323/1.444.0703
language
English
LU publication?
yes
id
c7791e67-1057-4757-9e21-f0f869f53ffb
date added to LUP
2025-12-02 14:02:49
date last changed
2025-12-03 07:10:29
@inproceedings{c7791e67-1057-4757-9e21-f0f869f53ffb,
  abstract     = {{The Cherenkov Telescope Array Observatory (CTAO) is the next-generation ground-based gamma-ray observatory currently under construction. It will improve over the current generation of imaging atmospheric Cherenkov telescopes (IACTs) by a factor of five to ten in sensitivity and it will be able to observe the whole sky from a combination of two sites: a northern site in La Palma, Spain, and a southern one in Paranal, Chile. CTAO will also be the first open ground-based gamma-ray observatory. Accordingly, the CTAO data processing pipeline is developed as open-source software and ctapipe will be a core package therein. The event reconstruction pipeline accepts raw data of the telescopes and processes it to produce suitable input for the higher-level science tools. Its primary tasks include reconstructing the physical properties of each recorded air shower and providing the corresponding instrument response functions. ctapipe is a python framework providing algorithms and command-line tools to facilitate raw data calibration, image extraction, image parametrization and event reconstruction. Its current main focus is the analysis of simulated data but it has also been successfully applied for the analysis of data obtained with the CTA prototype telescopes, and first science results have now been obtained by the LST-1 collaboration using ctapipe. A plugin system also allows the processing of nonCTA data. Recent updates, including event reconstruction using machine learning and a new plugin system as well as the roadmap towards a 1.0 release will be presented. © Copyright owned by the author(s) under the terms of the Creative Commons.}},
  author       = {{Linhoff, M. and Carlile, C. and Dravins, D. and Nickel, L.}},
  booktitle    = {{Proceedings of the 38th International Cosmic Ray Conference (ICRC2023)}},
  issn         = {{1824-8039}},
  keywords     = {{Airborne telescopes; Cosmic ray detectors; Cosmology; Network security; Optical telescopes; Photons; Pipeline processing systems; Problem oriented languages; Space telescopes; Cherenkov telescope arrays; Current generation; Data processing pipelines; Event reconstruction; Gamma ray observatories; Ground based; Imaging atmospheric Cherenkov telescopes; Open-source softwares; Paranal; Plug-ins; Open source software}},
  language     = {{eng}},
  series       = {{Proceedings of Science}},
  title        = {{Ctapipe - Prototype Open Event Reconstruction Pipeline for the Cherenkov Telescope Array}},
  url          = {{http://dx.doi.org/10.22323/1.444.0703}},
  doi          = {{10.22323/1.444.0703}},
  volume       = {{444}},
  year         = {{2024}},
}