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Related papers: Accurate Dose Measurements Using Cherenkov Polariz…

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Due to its angular dependency, Cerenkov light has long been considered a contamination signal in plastic scintillating dosimeters. In this study, we propose a novel approach designed to take advantage of this angular dependency to perform a…

Medical Physics · Physics 2022-03-17 Emilie Jean , Simon Lambert-Girard , Francois Therriault-Proulx , Luc Beaulieu

This work summarizes the results presented at 29th International Cosmic Ray Conference in Pune India. Generally the aim of this work is to obtain the lateral distribution of the atmospheric Cherenkov light in extensive air showers produced…

Astrophysics · Physics 2007-05-23 Alexander Mishev , Strashimir Mavrodiev , Jordan Stamenov

Atmospheric Cherenkov telescopes rely on the Earth's atmosphere as part of the detector. The presence of clouds affects observations and can introduce biases if not corrected for. Correction methods typically require an atmospheric profile,…

Instrumentation and Methods for Astrophysics · Physics 2024-04-03 Julian Sitarek , Mario Pecimotika , Natalia Żywucka , Dorota Sobczyńska , Abelardo Moralejo , Dario Hrupec

This study introduces a novel hybrid Cerenkov-scintillation dosimeter which is intended to be used for irradiation angle measurements based on the Cerenkov angular dependency. First measurements aimed at validating the ability to account…

Medical Physics · Physics 2022-01-27 Emilie Jean , Simon Lambert-Girard , Francois Therriault-Proulx , Luc Beaulieu

The sensitivity of an Imaging Atmospheric Cherenkov telescope is calibrated by shining, from a distant pulsed monochromatic light source, a defined photon flux onto the mirror. The light pulse is captured and reconstructed by the telescope…

Astrophysics · Physics 2009-10-30 A. Frass , C. Koehler , G. Hermann , M. Hess , W. Hofmann

In this paper, novel methods are presented to measure the optical properties of muon detectors (MDs) in the Large High-Altitude Air Shower Observatory (LHAASO), which can also be used by other experiments. Each MD consists of a cylindrical…

Instrumentation and Detectors · Physics 2019-01-30 Xiurong Li , Huihai He , Gang Xiao , Xiong Zuo , Shaohui Feng , Lingyu Wang , Cong Li , Mohsin Saeed , Ning Cheng

In order to fully exploit the physics potential of the ILC, it will be necessary to measure (and control) beam parameters to a permille level precision. In case of the beam polarisation, this can only be achieved with dedicated high energy…

Instrumentation and Detectors · Physics 2009-02-19 Christoph Bartels , Christian Helebrant , Daniela Käfer , Jenny List

Ground-based composition measurements of high-energy cosmic rays can be significantly improved by using the direct Cherenkov method. This technique targets the Cherenkov light produced by the primary particle prior to its production of an…

Astrophysics · Physics 2019-08-13 S. A. Wissel

Objective: In this study, a fast imaging technique was developed for the first in vivo Cherenkov emission imaging from an ultra-high dose rate (UHDR) electron beam source at single pulse (360 Hz) submillimeter resolution. Approach: A CMOS…

The Cherenkov Telescope Array is a world-wide project for a new generation of ground-based Cherenkov telescopes of the Imaging class with the aim of exploring the highest energy region of the electromagnetic spectrum. With two planned…

The reflector used by an imaging atmospheric Cherenkov telescope (IACT) consists of a tessellated array of mirrors mounted on a large frame. This arrangement allows for a very large reflecting surface with sufficient optical quality for the…

Instrumentation and Methods for Astrophysics · Physics 2009-07-29 A. McCann , D. Hanna , M. McCutcheon

A peculiar aspect of Cherenkov telescopes is that they are designed to detect atmospheric light flashes on the time scale of nanoseconds, being almost blind to stellar sources. As a consequence, the pointing calibration of these instruments…

Instrumentation and Methods for Astrophysics · Physics 2021-11-05 Simone Iovenitti , Giorgia Sironi , Enrico Giro , Alberto Segreto , Osvaldo Catalano , Milvia Capalbi

The ability to separately identify the Cherenkov and scintillation light components produced in scintillating mediums holds the potential for a major breakthrough in neutrino detection technology, allowing development of a large,…

Instrumentation and Detectors · Physics 2017-10-10 J. Caravaca , F. B. Descamps , B. J. Land , J. Wallig , M. Yeh , G. D. Orebi Gann

A first experimental test of tracking relativistic charged particles by `drifting' Cherenkov photons in a water-based optical time-projection chamber (OTPC) has been performed at the Fermilab Test Beam Facility. The prototype OTPC detector…

Instrumentation and Detectors · Physics 2016-02-17 E. Oberla , H. J. Frisch

Water Cherenov detector is a vital part in most of neutrino or cosmic ray research. As detectors grow in size, the water attenuation length (WAL) becomes increasingly essential for detector performance. It is essential to measure or monitor…

Instrumentation and Detectors · Physics 2023-12-05 Li Wang , Jilei Xu , Shuxiang Lu , Haoqi Lu , Zhimin Wang , Min Li , Sibo Wang , Changgen Yang , Yichen Zheng

Cherenkov telescope cameras are not suitable to perform astrometrical pointing calibration since they are not designed to produce images of the sky, but rather to detect nanosecond atmospheric flashes due to very high-energy cosmic…

Instrumentation and Methods for Astrophysics · Physics 2022-09-21 Simone Iovenitti , Giorgia Sironi , Alberto Segreto , Osvaldo Catalano , Teresa Mineo

Pointing calibration is an offline correction applied in order to obtain the true pointing direction of a telescope. The Cherenkov Telescope Array (CTA) aims to have the precision to determine the position of point-like as well as slightly…

Instrumentation and Methods for Astrophysics · Physics 2019-08-14 Louise Oakes , Bagmeet Behera , Juergen Baehr , Sandra Gruenewald , Tobias Raeck , Stefan Schlenstedt , Anja Schubert , Ullrich Schwanke

Context. The presence of clouds during observations with Imaging Atmospheric Cherenkov Telescopes can strongly affect the performance of the instrument due to additional absorption of light and scattering of light beyond the field of view…

Instrumentation and Methods for Astrophysics · Physics 2024-05-22 Natalia Żywucka , Julian Sitarek , Dorota Sobczyńska , Mario Pecimotika , Dario Hrupec , Dijana Dominis Prester , Lovro Pavletić , Saša Mićanović

Introduction: Real-time dosimetry of surface doses in electron beams has not been widely established yet. Plastic scintillation detectors (PSD) promise high spatial resolution and real-time dosimetry with minimum perturbation of the…

Accurate patient positioning is critical for precise radiotherapy dose delivery, as positioning errors can significantly affect treatment outcomes. This study introduces a novel method for tracking loco-regional tissue deformation through…

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