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The presence of muons in air-showers initiated by cosmic ray protons and nuclei is well established as a powerful tool to separate such showers from those initiated by gamma-rays. However, so far this approach has been fully exploited only…

高能天体物理现象 · 物理学 2021-09-10 Laura Olivera-Nieto , Alison M. W. Mitchell , Konrad Bernlöhr , James A. Hinton

Identification of Cherenkov light generated by muons has been suggested as a promising way to dramatically improve the background rejection power of Imaging Atmospheric Cherenkov Telescope (IACT) arrays at high energies. However, muon…

高能天体物理现象 · 物理学 2022-12-13 Laura Olivera-Nieto , Helena X. Ren , Alison M. W. Mitchell , Vincent Marandon , Jim Hinton

Atmospheric air Cherenkov telescopes are successfully used for ground-based, very high-energy (VHE) gamma ray astronomy. Triggers from the so-called single muon and other long-flying relativistic charged particle events are an unwanted…

天体物理学 · 物理学 2009-11-11 R. Mirzoyan , D. Sobczynska , E. Lorenz , M. Teshima

Muography is an innovative imaging technique using naturally produced elementary particles -- atmospheric muons -- like the X-rays of medical imaging. The modification of the particles flux -- by scattering or absorption --, reflects the…

仪器与探测器 · 物理学 2024-01-31 Theodore Avgitas , Jean Christophe Ianigro , Jacques Marteau

Cherenkov light from cosmic-ray muons is a significant source of background for the Imaging Atmospheric Cherenkov Technique. However, muon events are also valuable as a diagnostic tool because they produce distinctive ring images, and the…

天体物理学 · 物理学 2019-08-14 T. B. Humensky

Several methods can be used to perform statistical inference of primary composition of cosmic rays measured with water Cerenkov detectors as those in use at the Pierre Auger Southern Observatory. In the present work we assess the impact of…

In the atmospheric Cerenkov technique gamma rays are detected against the abundant background produced by hadronic showers. In order to improve the signal to noise ratio of the experiment, it is necessary to reject a significant fraction of…

天体物理学 · 物理学 2011-08-17 V. R. Chitnis , P. N. Bhat

Muon component of extensive air showers (EAS) initiated by cosmic ray particles carries information on the primary particle identity. We show that the muon content of EAS could be measured in a broad energy range from 10-100 TeV up to…

天体物理仪器与方法 · 物理学 2017-01-05 A. Neronov , D. V. Semikoz , Ie. Vovk , R. Mirzoyan

This paper presents several approaches to deal with the problem of identifying muons in a water Cherenkov detector with a reduced water volume and 4 PMTs. Different perspectives of information representation are used and new features are…

仪器与探测器 · 物理学 2021-01-29 B. S. González , R. Conceição , M. Pimenta , B. Tomé , A. Guillén

Cosmic ray muons have been considered as a non-conventional radiation probe in various applications. To utilize cosmic ray muons in engineering applications, two important quantities, trajectory and momentum, must be known. The muon…

仪器与探测器 · 物理学 2022-01-04 Junghyun Bae , Stylianos Chatzidakis

XENON is a dark matter direct detection project, consisting of a time projection chamber (TPC) filled with liquid xenon as detection medium. The construction of the next generation detector, XENON1T, is presently taking place at the…

The sensitivity of ground-based imaging atmospheric Cherenkov gamma-ray observatories depends critically on the primary particle identification methods which are used to retain photon-initiated events and suppress the spurious background…

天体物理学 · 物理学 2014-10-13 V. V. Bugaev , A. V. Plyasheshnikov , V. V. Vassiliev , T. C. Weekes

Cosmic ray muons present a large part of the radiation background and depending on the application of interest muons can be seen as background noise, e.g., radiation mapping, radiation protection, dosimetry, or as a useful interrogation…

仪器与探测器 · 物理学 2022-01-10 Junghyun Bae , Stylianos Chatzidakis

Measurements of cosmic ray electron+positron spectrum above 10 TeV with ground-based experiments is challenging because of the difficulty of rejection of hadronic extensive air shower background. We study the efficiency of rejection of the…

高能天体物理现象 · 物理学 2021-02-18 A. Neronov , D. Semikoz

Imaging atmospheric Cherenkov telescope (IACT) arrays such as VERITAS are used for ground-based very high-energy gamma-ray astronomy. This is accomplished by the detection and analysis of the Cherenkov light produced by gamma-ray-initiated…

天体物理仪器与方法 · 物理学 2019-08-13 Jonathan Tyler

While atmospheric Cherenkov telescopes have a small field of view and a small duty fraction, arrays of particle detectors on ground have a 1\,sr field of view and a 100% duty fraction. On the other hand, particle detector arrays have a much…

天体物理学 · 物理学 2009-10-28 K. Bernlöhr

In this work, we present a new, high performance algorithm for background rejection in imaging atmospheric Cherenkov telescopes. We build on the already popular machine-learning techniques used in gamma-ray astronomy by the application of…

天体物理仪器与方法 · 物理学 2020-05-20 R. D. Parsons , S. Ohm

In this work, we propose a new approach to cosmic ray muon momentum measurement using multiple pressurized gaseous Cherenkov radiators. Knowledge of cosmic ray muon momentum has the potential to significantly improve and expand the use of a…

仪器与探测器 · 物理学 2021-10-29 Junghyun Bae , Stylianos Chatzidakis

Observations with the Cherenkov telescopes are in principle limited to the clear sky conditions due to significant absorption of Cherenkov light by clouds. If the cloud level is high enough or the atmospheric transmission of the cloud is…

天体物理仪器与方法 · 物理学 2015-06-23 Dorota Sobczynska , Wlodek Bednarek

Cherenkov detectors have been extensively developed and utilized in various scientific fields, including particle physics, astrophysics, and nuclear engineering. These detectors operate based on Cherenkov radiation, which is emitted when a…

仪器与探测器 · 物理学 2025-06-30 Anzori Sh. Georgadze
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