The ALICE Time Of Flight (TOF) system will perform charged particle identification in the intermediate momentum range (from 0.5 to a few GeV/c) and in the central pseudorapidity region (
|
η
|
<
0.9
...). In particular the TOF has to cover an area of ∼ 160
m
2 and has to be highly segmented (∼ 160000 readout pads of 2.5 × 3.7
cm
2 active area) in order to keep the occupancy in Pb-Pb collisions below the 15 % level. In order to satisfy these requirements, the double-stack MRPC detector has been chosen for the TOF system. The most relevant results on the performances of the final version of the MRPC and of the front-end/readout electronics will be presented. The device has a very good uniformity, a long streamer-free plateau, an efficiency higher than 99 % and an intrinsic time resolution below 50 ps.
Can Spin Models Reproduce or Predict Experimental Results in PDLC? Chiccoli, Cesare; Pasini, Paolo; Semeria, Franco ...
Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals,
19/6/1/, Letnik:
266, Številka:
1
Journal Article
Lattice spin models are employed to study polymer dispersed liquid crystals (PDLC). We calculate polarized light textures and Deuterium NMR lineshapes from Monte Carlo computer simulations of model ...nematic droplets that mimic PDLC systems with radial, toroidal and bipolar boundary conditions. We also present microscopic properties such as order parameters across the sample obtained from the simulations. Our investigations of the PDLC systems include various temperatures and external applied fields both with positive and negative susceptivity anisotropy.
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