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We compare in detail the results of simulations of electromagnetic showers in ice in the GeV-TeV energy range, using both the GEANT package and the ZHS Monte Carlo, a code specifically designed to calculate coherent Cerenkov radio pulses…

Astrophysics · Physics 2011-05-12 J. Alvarez-Muniz , E. Marques , R. A. Vazquez , E. Zas

Recent surveys monitoring millions of light curves of resolved stars in the LMC have discovered several microlensing events. Unresolved stars could however significantly contribute to the microlensing rate towards the LMC. Monitoring…

Astrophysics · Physics 2009-10-30 A. -L. Melchior

In order to better utilize the information contained in the shower images generated by imaging Cherenkov telescopes (IACTs) equipped with cameras with small pixels, images are fit to a parametrization of image shapes gained from Monte Carlo…

Astrophysics · Physics 2007-05-23 M. Ulrich , A. Daum , G. Hermann , W. Hofmann

We present an approximation for the numerical calculation of Cherenkov radio pulses in the Fraunhofer limit from very high energy showers in dense media. We compare it to full Montecarlo simulations in ice studying its range of…

Astrophysics · Physics 2009-12-30 J. Alvarez-Muñiz , R. A. Vázquez , E. Zas

Wavefront sampling experiments record arrival times of \v{C}erenkov photons with high precision at various locations in \v{C}erenkov pool using a distributed array of telescopes. It was shown earlier that this photon front can be fitted…

Astrophysics · Physics 2009-09-25 V. R. Chitnis , P. N. Bhat

An efficient scheme for one-dimensional extensive air shower simulation and its implementation in the program CONEX are presented. Explicit Monte Carlo simulation of the high-energy part of hadronic and electromagnetic cascades in the…

Astrophysics · Physics 2009-07-22 T. Bergmann , R. Engel , D. Heck , N. N. Kalmykov , S. Ostapchenko , T. Pierog , T. Thouw , K. Werner

The electric field of the Cherenkov radio pulse produced by a single charged particle track in a dielectric medium is derived from first principles. An algorithm is developed to obtain the pulse in the time domain for numerical…

High Energy Astrophysical Phenomena · Physics 2014-11-20 Jaime Alvarez-Muniz , Andres Romero-Wolf , Enrique Zas

K-EUSO is a planned mission of the JEM-EUSO program for the study of ultra-high energy cosmic rays (UHECR) from space, to be deployed on the International Space Station. The K-EUSO observatory consists of a UV telescope with a wide field of…

The high-luminosity upgrade of the CERN LHC requires the replacement of the CMS tracking detector to cope with the increased radiation fluence while maintaining its excellent performance. An extensive R\&D program, aiming at using 3D pixel…

Instrumentation and Detectors · Physics 2025-10-16 The Tracker Group of the CMS Collaboration

Using Monte Carlo simulation of extensive air showers, we showed that the maximum depth of showers, $X_{max}$ can be estimated using $P=Q(100)/Q(200)$, the ratio of Cherenkov photon densities at 100 and 200 meters from the shower core,…

Instrumentation and Methods for Astrophysics · Physics 2021-06-07 Rasekh Ibrahim , Purmohammad Davoud

We investigate theoretically the possibility of using the cold-electron bolometer (CEB) as a counter for 1 cm wavelength (30 GHz) photons. To reduce the flux of photons from the environment, which interact with the detector, the bath…

Mesoscale and Nanoscale Physics · Physics 2019-12-30 D. V. Anghel , L. S. Kuzmin

Atmospheric Cherenkov technique is an established methodology to study TeV energy gamma rays. Here we carry out systematic monte carlo simulation studies of the timing information of Cherenkov photons. Extensive studies have already been…

Astrophysics · Physics 2009-10-31 V. R. Chitnis , P. N. Bhat

Detector calibration is very important for the long-term operation. For the purposes of simple and precise calibration, we developed a new portable calibration source using UVLED to calibrate the fluorescence detector of the Telescope Array…

Instrumentation and Detectors · Physics 2018-12-05 Sungrae Im , Bokkyun Shin , Ikeda Daisuke , Stan Thomas , ByungGu Cheon

The possibility to use Cherenkov light measurements with Cherenkov telescope to study atmospheric processes is shown. Cherenkov light from extensive air showers is obtained using Monte Carlo simulations with CORSIKA code. Different…

Atmospheric and Oceanic Physics · Physics 2009-10-12 A. Mishev

Using air showers induced by TeV gamma-rays from Mrk 501, the radial distribution of Cherenkov light is investigated. The shower geometry is reconstructed from the stereoscopic shower images obtained with the telescopes of the HEGRA IACT…

Astrophysics · Physics 2011-05-23 HEGRA Collaboration , F. Aharonian et al

The Pixel Luminosity Telescope is a silicon pixel detector dedicated to luminosity measurement at the CMS experiment at the LHC. It is located approximately 1.75 m from the interaction point and arranged into 16 "telescopes", with eight…

Instrumentation and Detectors · Physics 2023-08-02 Paul Lujan

The study of high energy cosmic rays requires detailed Monte Carlo simulations of both, extensive air showers and the detectors involved in their detection. In particular, the energy calibration of several experiments is obtained from…

Astrophysics · Physics 2009-02-18 A. D. Supanitsky , G. Medina-Tanco

Optimization of the SPHERE-3 detector configuration, designed to study the mass composition of primary cosmic rays in the energy range 1--1000 PeV by registering Cherenkov light reflected from the snow surface, requires simulation of a…

Instrumentation and Methods for Astrophysics · Physics 2026-03-11 V. A. Ivanov , V. I. Galkin , E. A. Bonvech , O. V. Cherkesova , D. V. Chernov , T. A. Kolodkin , N. O. Ovcharenko , D. A. Podgrudkov , T. M. Roganova , M. D. Ziva

CoREAS is a Monte Carlo simulation code for the calculation of radio emission from extensive air showers. It is based on the "endpoint formalism" for radiation from moving charges implemented directly in CORSIKA. Consequently, the full…

High Energy Astrophysical Phenomena · Physics 2013-07-30 Tim Huege , Clancy W. James

The Pierre Auger Observatory consists of 1660 water-Cherenkov detectors (WCDs) and 27 fluorescence telescopes, covering a surface of 3000 km2 in the province of Mendoza, Argentina. After almost two decades, Auger Phase I has ended the data…

High Energy Astrophysical Phenomena · Physics 2025-07-22 Paula Gina Isar