نتایج جستجو برای: isothermal calorimeter
تعداد نتایج: 17839 فیلتر نتایج به سال:
SND (Spherical Neutral Detector) is a general purpose nonmagnetic detector, successfully operating at Novosibirsk VEPP-2M collider during last four years in the center of mass energy range from 400 MeV up to 1400 MeV. Its crucial part is a 3-layer, fine grained, spherical NaI(Tl) electromagnetic calorimeter consisted of 1632 individual counters. Here we present a detailed description of the cal...
CMS is a general-purpose detector designed for use in the large hadron collider (LHC) at CERN. The electromagnetic calorimeter will play an important role in electron and photon energy measurements. The benchmark process to evaluate and optimize its performance is H −→ γγ in the intermediate mass range (90 < mH < 150 GeV). For this purpose, each element of the readout chain has to be optimized....
We describe the electric circuits (electrodes) which polarize and readout the Lead-Liquid Argon electromagnetic calorimeter for the ATLAS detector. The paper covers design and material choices of the circuits as well as their production in industry. We also show how the electrodes integrate into the calorimeter and conclude with results from groups of electrodes making up calorimeter modules. ∗...
A study of the CMS hadron calorimeter is presented using simulated events with single particles and jets. The impact of the outer hadron calorimeter has been looked into from the point of view of linearity, energy resolution and leakage of energy. The study shows a net improvement in missing pT measurements at LHC energies due to the addition of the outer hadron calorimeter. 1) Tata Institute o...
We report the design and performance of the hybrid electromagnetic calorimeter for the PRIMEX experiment at Jefferson Laboratory. The detector was designed, constructed and used for high precision measurement of the lifetime of the neutral pion via the Primakoff effect. Calorimeter installation and commissioning was completed with first physics run in fall of 2004. Especially we present calorim...
The understanding of the reconstruction and calibration of electrons and photons is one of the key steps at the start-up of data-taking with ATLAS [1] at the LHC (Large Hadron Collider). The calorimeter cells are electronically calibrated before being clustered. Corrections to local position and energy measurements are applied to take into account the calorimeter geometry. Finally, longitudinal...
1. The heart-rate (HR) method for determining the energy expenditure of free-living subjects has been evaluated using a whole-body calorimeter in which individuals lived continuously for 27 h while carrying out normal daily activities. Eight male volunteers each occupied the calorimeter on at least two occasions when HR and energy expenditure were measured continuously. 2. After each session in...
The hadronic shower longitudinal and lateral leakages and its effect on the pion response and energy resolution of ATLAS ironscintillator barrel hadron prototype calorimeter with longitudinal tile configuration with a thickness of 9.4 nuclear interaction lengths have been investigated. The results are based on 100 GeV pion beam data at incidence angle Θ = 10 at impact point Z in the range from ...
Phosphorus slag (PS) and limestone (LS) composite (PLC) were prepared with a mass ratio of 1:1. The effects the content PLC water/binder on mechanical properties, durability dry shrinkage concrete studied via compressive strength, electric flux, sulfate dry/wet cycle method, saturated drainage isothermal calorimeter, adiabatic temperature rise instrument deformation instrument. results show tha...
Amphiphilic molecules spontaneously adsorb to fluid polar-nonpolar interfaces. The timescale of such adsorption depends on the molecular size and structure solute. This process should be accompanied by a power heat exchange that could detected commercial isothermal calorimeters. Air is injected in bulk different aqueous solutions contained sample cell an titration calorimeter. formation resulti...
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