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Hadron energy reconstruction for the ATLAS calorimetry in the framework of the ...
Akhmadaliev, S.; Amaral, P.; Ambrosini, G.; Amorim, A.; Anderson, K.; Andrieux, M. L.; Aubert, B.; Augé, E.; Badaud, F.; Baisin, L.; Barreiro, F.This paper discusses hadron energy reconstruction for the ATLAS barrel prototype combined calorimeter (consisting of a lead-liquid argon electromagnetic part and an iron-scintillator hadronic part) in the framework of the non-parametrical method. The non-parametrical method utilizes only the known e/h ratios and the electron calibration constants and does not require the determination of any parameters by a min...
Results from a new combined test of an electromagnetic liquid argon calorimeter...
Akhmadaliev, S.; Albiol, F.; Amaral, P.; Ambrosini, G.; Amorim, A.; Anderson, K.; Andrieux, M. L.; Aubert, B.; Augé, E.; Badaud, F.; Baisin, L.A new combined test of an electromagnetic liquid argon accordion calorimeter and a hadronic scintillating-tile calorimeter was carried out at the CERN SPS. These devices are prototypes of the barrel calorimeter of the future ATLAS experiment at the LHC. The energy resolution of pions in the energy range from 10 to 300 GeV at an incident angle [theta] of about 12° is well described by the expression , where E is...
Hadronic shower development in Iron-Scintillator Tile Calorimetry
Amaral, P.; Amorim, A.; Anderson, K.; Barreira, G.; Benetta, R.; Berglund, S.; Biscarat, C.; Blanchot, G.; Blucher, E.; Bogush, A.; Bohm, C.; Boldea, V.The lateral and longitudinal profiles of hadronic showers detected by a prototype of the ATLAS Iron-Scintillator Tile Hadron Calorimeter have been investigated. This calorimeter presents a unique longitudinal configuration of scintillator tiles. Using a fine-grained pion beam scan at 100 GeV, a detailed picture of transverse shower behaviour is obtained. The underlying radial energy densities for the four depth...
Features of spectral-angular distribution of coherent X-radiation
Gavrikov,V. B.; Likhachev,V. P.; Martins,M. N.; Romanov,V. A.The properties of coherent X-radiation (CXR), generated in crystals by electrons in the tens of MeV energy range, were investigated theoretically. The analytical expressions for CXR spectral-angular and angular cross sections were obtained with the use of small-angle multiple scattering approximation. Our theoretical results are in good agreement with experiment. The obtained results can be used in designing qu...
Evaluation of Fermi read-out of the Atlas Tilecal prototype
Ajaltouni, Z.; Albiol, F.; Alifanov, A.; Amaral, P.; Amelin, D.; Amorim, A.; Anderson, K.; Angelini, C.; Agnvall, S.; Antola, A.; Astesan, F.Prototypes of the FERMI system have been used to read out a prototype of the ATLAS hadron calorimeter in a beam test at the CERN SPS. The FERMI read-out system, using a compressor and a sampling ADC, is compared to a standard charge integrating read-out by measuring the energy resolution of the calorimeter separately with the two systems on the same events. ; http://www.sciencedirect.com/science/article/B6TJ...
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