1,721,309 research outputs found
ON THE POSSIBILITY TO DETECT A VECTOR TERM IN THE GRAVITATIONAL POTENTIAL THROUGH THE VACUUM POLARIZATION IN ATOMS
No full textA SIMULATION STUDY OF THE BEHAVIOR OF FINE MESH PHOTOMULTIPLIERS IN MAGNETIC-FIELD
No full textResults of a comparison between experimental data and a Monte Carlo simulation study on fine-mesh photomultipliers (PM) behaviour in magnetic field (B) are reported. This work is accomplished in order to understand the details of the electron cascade between the dynodes; the PM amplification gain is investigated, with respect of several relative orientations of the field and the PM axis and for different values of the B-field intensity. Some characteristic of the energy spectrum of the secondary electron emission (SEE) is also taken into account in this work. The aim is to better understand which technical constructive parameters are more sensitive to the optimization of the PM performance in presence of high B-fields (e.g. as required for the KLOE experiment). The simulation results are compared with those experimentally obtained with the Hamamatsu R2490-05 fine mesh tubes
TRANSPUTER NETWORKS FOR THE ONLINE ANALYSIS OF FINE-GRAINED ELECTROMAGNETIC CALORIMETER DATA
No full textTransputer networks, designed to perform parallel computations, are well suited for data acquisition, on-line analysis and second level trigger tasks in high energy physics experiments. Some simple algorithms for the analysis of fine-grained electromagnetic calorimeter data were implemented on two types of transputer networks and tested on real and simulated data from a silicon-tungsten calorimeter. Results are presented on the processing speed, measured in a test setup, and extrapolations to a full size detector and data acquisition system are discussed
LIGHT TRANSPORT IN A FLEXIBLE LIQUID SCINTILLATOR FIBER
No full textFirst results on attenuation length, photon yield and timing properties of a liquid scintillator flexible fiber are presented. Possible applications and systematic effects are also discussed
THE ELLIPTICITY INTRODUCED BY INTERFERENTIAL MIRRORS ON A LINEARLY POLARIZED-LIGHT BEAM ORTHOGONALLY REFLECTED
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