4,141 research outputs found

    Uniformity Of The 2000 Test Beam Module With The New Optimal Filtering Coefficients

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    An original method to reconstruct electron and pion signals in the Liquid ARGon barrel calorimeter (LARG) is applied to test beam data collected at the H8 line of the CERN North Area in July and August 2000. The method is based on the use of optimal filtering coefficients and takes into account the electrical description of the read-out electronics in the reconstruction of the physics pulses. Results on improvements in the LARG response and in particular on the energy uniformity of the calorimeter are shown

    Uniformity of the 2000 test beam module with the new optimal filtering coefficients

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    An original method to reconstruct electron and pion signals in the Liquid ARGon barrel calorimeter (LARG) is applied to test beam data collected at the H8 line of the CERN North Area in July and August 2000. The method is based on the use of optimal filtering coefficients and takes into account the electrical description of the read-out electronics in the reconstruction of the physics pulses. Results on improvements in the LARG response and in particular on the energy uniformity of the calorimeter are shown

    Ageing test of the ATLAS RPCs at X5-GIF

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    An ageing test of three ATLAS production RPC stations is in course at X5-GIF, the CERN irradiation facility. The chamber efficiencies are monitored using cosmic rays triggered by a scintillator hodoscope. Higher statistics measurements are made when the X5 muon beam is available. We report here the measurements of the efficiency versus operating voltage at different source intensities, up to a maximum counting rate of about 700Hz/cm^2. We describe the performance of the chambers during the test up to an overall ageing of 4 ATLAS equivalent years corresponding to an integrated charge of 0.12C/cm^2, including a safety factor of 5.Comment: 4 pages. Presented at the VII Workshop on Resistive Plate Chambers and Related Detectors; Clermont-Ferrand October 20th-22nd, 200

    空间重构、文本新解和观演互渗――论小剧场艺术的若干特征(下)

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    LHC muon trigger detectors are supposed to work for 10 yr under an intense flux of radiation. Therefore, in the framework of ATLAS, the performance of full and reduced size RPC prototypes, heavily irradiated with gamma sources, were measured for variable incident fluxes. We introduce here a detector description in terms of the "global" parameters based on experimental data such as current, total counting rate and gamma fluxes. In this test the ATLAS final front- end electronics was used for the first time. (4 refs)

    Optimization of RPCs read-out panel with electromagnetic simulation

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    With the upgrade of the RPCs [1]-[2] and the increase of its performances, the study and the optimization of the read-out panel is necessary in order to maintain the signal integrity and to reduce the intrinsic crosstalk. Through Electromagnetic Simulation, performed with CST Studio Suite, new panels design are tested and their crosstalk property are studied. The behavior of different type of panel is shown, in particular a panel with the decoupling strip connected through their characteristic impedance to the ground plane is simulated

    “两个先锋队”理论对马克思主义政党理论的新贡献

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    江泽民关于党的“两个先锋队”理论,是对我党的性质和特征的一个新认识、新概括、新表述,它表明中国共产党不仅具有工人阶级先锋队这一马克思主义政党的普遍特征,而且具有中国人民和中华民族先锋队的特殊性;它表明中国共产党具有坚实的阶级基础和广泛的群众基础
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