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相关论文: Reconstruction of IACT events using deep learning …

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Deep convolutional neural networks (DCNs) are a promising machine learning technique to reconstruct events recorded by imaging atmospheric Cherenkov telescopes (IACTs), but require optimization to reach full performance. One of the most…

天体物理仪器与方法 · 物理学 2019-12-23 D. Nieto , A. Brill , Q. Feng , M. Jacquemont , B. Kim , T. Miener , T. Vuillaume

The Imaging Atmospheric Cherenkov Technique (IACT) is unusual in astronomy as the atmosphere actually forms an intrinsic part of the detector system, with telescopes indirectly detecting very high energy particles by the generation and…

天体物理仪器与方法 · 物理学 2019-08-14 M. K. Daniel

The Cherenkov Telescope Array Observatory (CTAO) is the next generation of observatories employing the imaging air Cherenkov technique for the study of very high energy gamma rays. The deployment of deep learning methods for the…

天体物理仪器与方法 · 物理学 2024-03-21 Michael Dellaiera , Cyann Plard , Thomas Vuillaume , Alexandre Benoit , Sami Caroff

We present a high-performance event reconstruction algorithm: an Image Pixel-wise fit for Atmospheric Cherenkov Telescopes (ImPACT). The reconstruction algorithm is based around the likelihood fitting of camera pixel amplitudes to an…

天体物理仪器与方法 · 物理学 2014-05-20 R. D. Parsons , J. A. Hinton

The CTAO (Cherenkov Telescope Array Observatory) is an international observatory currently under construction. With more than sixty telescopes, it will eventually be the largest and most sensitive ground-based gamma-ray observatory. CTAO…

天体物理仪器与方法 · 物理学 2025-02-12 Hana Ali Messaoud , Thomas Vuillaume , Tom François

The Cherenkov Telescope Array is the next generation of observatory using imaging air Cherenkov technique for very-high-energy gamma-ray astronomy. Its first prototype telescope is operational on-site at La Palma and its data acquisitions…

天体物理仪器与方法 · 物理学 2024-03-22 Michaël Dell'aiera , Mikaël Jacquemont , Thomas Vuillaume , Alexandre Benoit

The identification of $\gamma$-rays from the predominant hadronic-background is a key aspect in their ground-based detection using Imaging Atmospheric Cherenkov Telescopes (IACTs). While current methods are limited in their ability to…

高能天体物理现象 · 物理学 2025-10-08 Abhay Mehta , Dan Parsons , Tim Lukas Holch , David Berge , Matthias Weidlich

The Cosmic Multiperspective Event Tracker (CoMET) R&D project aims to optimize the techniques for the detection of soft-spectrum sources through very-high-energy gamma-ray observations using particle detectors (called ALTO detectors), and…

The simulation of atmospheric showers through Monte-Carlo processes as well as their projection into Imaging Atmospheric Cherenkov Telescopes (IACT) is long and very computing intensive. As these simulations are the most advanced ones from…

天体物理仪器与方法 · 物理学 2017-09-15 Thomas Vuillaume , Florian Gaté , Gilles Maurin , Jean Jacquemier , Giovanni Lamanna

A dramatic progress in the field of computer vision has been made in recent years by applying deep learning techniques. State-of-the-art performance in image recognition is thereby reached with Convolutional Neural Networks (CNNs). CNNs are…

The Cherenkov Telescope Array Observatory (CTAO) is the next-generation ground-based observatory for very-high-energy (VHE) gamma-ray astronomy. The Large-Sized Telescope prototype, LST-1, located on the Canary Island of La Palma, is…

高能天体物理现象 · 物理学 2025-09-30 Bastien Lacave , Tjark Miener , Alexander Cerviño

Imaging atmospheric Cherenkov telescopes (IACTs) are sensitive to rare gamma-ray photons, buried in the background of charged cosmic-ray (CR) particles, the flux of which is several orders of magnitude greater. The ability to separate gamma…

天体物理仪器与方法 · 物理学 2017-06-14 Qi Feng , Tony T. Y. Lin

The Imaging Atmospheric Cherenkov Telescope (IACT) works by imaging the very short flash of Cherenkov radiation generated by the cascade of relativistic charged particles produced when a TeV gamma ray strikes the atmosphere. This energetic…

天体物理仪器与方法 · 物理学 2019-08-14 F. Krayzel , G. Maurin , L. Brunetti , J. -M. Dubois , A. Fiasson , L. Journet , G. Lamanna , T. Leflour , B. Lieunard , I. Monteiro , S. Rosier-Lees

The High Energy Stereoscopic System (H.E.S.S.) is an array of five Imaging Atmospheric Cherenkov Telescopes (IACTs) designed to detect cosmogenic gamma-rays with very high energies. Originally consisting of just four identical IACTs (CT1-4)…

天体物理仪器与方法 · 物理学 2019-08-14 M. Holler , A. Balzer , R. Chalmé-Calvet , M. de Naurois , D. Zaborov

The Cherenkov Telescope Array (CTA) is the next-generation stereoscopic system of Imaging Atmospheric Cherenkov Telescopes (IACTs). In IACTs, the atmosphere is used as a calorimeter to measure the energy of extensive air showers induced by…

天体物理仪器与方法 · 物理学 2023-06-14 Mario Pecimotika , Dijana Dominis Prester , Dario Hrupec , Saša Mićanović , Lovro Pavletić , Julian Sitarek

Our Galaxy is filled with cosmic-ray particles and more than 98% of them are atomic nuclei. In order to clarify their origin and acceleration mechanism, chemical composition measurements of these cosmic rays with wide energy coverage play…

高能天体物理现象 · 物理学 2018-01-22 Michiko Ohishi , Takanori Yoshikoshi , Tatsuo Yoshida

Imaging Atmospheric Cherenkov Telescopes (IACTs) have resulted in a breakthrough in very-high energy (VHE) gamma-ray astrophysics. While early IACT installations faced the problem of detecting any sources at all, current instruments are…

天体物理学 · 物理学 2009-11-19 Konrad Bernlohr

We present a sophisticated gamma-ray likelihood reconstruction technique for Imaging Atmospheric Cerenkov Telescopes. The technique is based on the comparison of the raw Cherenkov camera pixel images of a photon induced atmospheric particle…

天体物理仪器与方法 · 物理学 2015-03-13 Mathieu de Naurois , Loic Rolland

The Cherenkov Telescope Array Observatory (CTAO) is the next generation of ground-based observatories employing the imaging air Cherenkov technique for the study of very high energy gamma rays. The software Gammalearn proposes to apply Deep…

天体物理仪器与方法 · 物理学 2025-02-12 Tom François , Justine Talpaert , Thomas Vuillaume

The imaging Cherenkov telescopes TAIGA-IACT, located in the Tunka valley of the republic Buryatia, accumulate a lot of data in a short period of time which must be efficiently and quickly analyzed. One of the methods of such analysis is the…

天体物理仪器与方法 · 物理学 2021-12-21 Elizaveta Gres , and Alexander Kryukov