نتایج جستجو برای: cherenkov counter

تعداد نتایج: 42887  

2007
BigBite Gas Cherenkov

This document describes the Cherenkov detector that is to be constructed for the Hall A neutron d2 experiment (E06-014). The inclusive nature of that experiment makes the addition of the Cerenkov counter for pion and proton rejection critical for the low energy bins. Monte Carlo and analysis of G E suggest particle rates of (assuming a 500MeV ee threshold on the the BigBite shower detector): • ...

2004
R. Asaturyan R. Ent H. Fenker D. Gaskell G. M. Huber M. Jones D. Mack H. Mkrtchyan B. Metzger N. Novikoff V. Tadevosyan W. Vulcan S. Wood

We describe a new aerogel threshold Cherenkov detector installed in the HMS spectrometer in Hall C at Jefferson Lab. The Hall C experimental program in 2003 required an improved particle identification system for better identification of π/K/p, which was achieved by installing an additional threshold Cherenkov counter. Two types of aerogel with n = 1.03 and n = 1.015 allow one to reach ∼ 10 pro...

Journal: :Physics in medicine and biology 2017
S E Brunner D R Schaart

Due to detector developments in the last decade, the time-of-flight (TOF) method is now commonly used to improve the quality of positron emission tomography (PET) images. Clinical TOF-PET systems based on L(Y)SO:Ce crystals and silicon photomultipliers (SiPMs) with coincidence resolving times (CRT) between 325 ps and 400 ps FWHM have recently been developed. Before the introduction of L(Y)SO:Ce...

Journal: :Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 1998

Journal: :iranian journal of astronomy and astrophysics 2014
davoud purmohammad safoora tanbakooei

the dependence of the lateral distribution of cherenkov light in simulated extensive air showers to the energy and the mass of the primary cosmic rays has been studied. it has been shown that a previous claim about mass independent proportionality of shower energy to the total cherenkov photon number is not valid in energies below eeas ~ 1014 ev. we have found that the core distance of the so c...

Journal: :iranian journal of astronomy and astrophysics 2014
gohar rastegarzadeh sahar khoshabadi

simulation of gamma and hadron showers in the energy range 100gev- 25tev has been carried out. for a big ideal cherenkov light array, characteristics of lateral distribution of cherenkov photon density have been studied. results from this ideal detector are compared with those simulated for a real tunka- like array to investigate experimental potential of using existence of a hump in lateral di...

Journal: :Nuclear Instruments and Methods in Physics Research 2023

At the Belle II experiment a Time-of-Propagation (TOP) counter is used for particle identification in barrel region. This novel type of device combines Cherenkov ring imaging technique with time-of-flight and therefore it relies on precise knowledge time collision each triggered event. We discuss performance present maximum likelihood based method determination event from measured data.

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