8 research outputs found
Prevalence of depressive symptoms among schoolchildren in Cyprus: a cross-sectional descriptive correlational study
The Optical Instrumentation of the ATLAS Tile Calorimeter
The purpose of this Note is to describe the optical assembly procedure called here Optical Instrumentation and the quality tests conducted on the assembled units. Altogether, 65 Barrel (or LB) modules were constructed - including one spare - together with 129 Extended Barrel (EB) modules (including one spare). The LB modules were mechanically assembled at JINR (Dubna, Russia) and transported to CERN, where the optical instrumentation was performed with personnel contributed by several Institutes. The modules composing one of the two Extended Barrels (known as EBA) were mechanically assembled in the USA, and instrumented in two US locations (ANL, U. of Michigan), while the modules of the other Extended barrel (EBC) were assembled in Spain and instrumented at IFAE (Barcelona). Each of the EB modules includes a subassembly known as ITC that contributes to the hermeticity of the calorimeter; all ITCs were assembled at UTA (Texas), and mounted onto the module mechanical structures at the EB mechanical assembly locations.The Tile Calorimeter, covering the central region of the ATLAS experiment up to pseudorapidities of ±1.7, is a sampling device built with scintillating tiles that alternate with iron plates. The light is collected in wave-length shifting (WLS) fibers and is read out with photomultipliers. In the characteristic geometry of this calorimeter the tiles lie in planes perpendicular to the beams, resulting in a very simple and modular mechanical and optical layout. This paper focuses on the procedures applied in the optical instrumentation of the calorimeter, which involved the assembly of about 460,000 scintillator tiles and 550,000 WLS fibers. The outcome is a hadronic calorimeter that meets the ATLAS performance requirements, as shown in this paper
Analysis of excitation-contraction-coupling components in chronically stimulated canine skeletal muscle
The codification of intersubjectivity in the diachronic change AD locative > A(D) indirect object in Spanish
Temporal analysis of products (TAP) study on low temperature carbon monoxide oxidation on supported Au catalysts
The optical instrumentation of the ATLAS Tile Calorimeter
The Tile Calorimeter, covering the central region of the ATLAS
experiment up to pseudorapidities of +/-1.7, is a sampling device built
with scintillating tiles that alternate with iron plates. The light is
collected in wave-length shifting (WLS) fibers and is read out with
photomultipliers. In the characteristic geometry of this calorimeter the
tiles lie in planes perpendicular to the beams, resulting in a very
simple and modular mechanical and optical layout. This paper focuses on
the procedures applied in the optical instrumentation of the
calorimeter, which involved the assembly of about 460,000 scintillator
tiles and 550,000 WLS fibers. The outcome is a hadronic calorimeter that
meets the ATLAS performance requirements, as shown in this paper