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Experimental Study of Particle Separation in a L Kr Ionization Chamber by Multiple Measuring of dE/d x Using the Shape Analysis of Signal

机译:利用信号形状分析多次测量dE / d x对L Kr电离室内颗粒分离的实验研究

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Charged particle ((pi) - k) separation in the momentum range 0.5 - 0.7 GeV/c using a new method of shape analysis of the signal from a liquid krypton (L Kr) ionization chamber has been experimentally studied. The detector has been exposed to pions and protons at T11 test beam at the CERN PS. The shape of the preamplifier output signal was recorded by a waveform digitizer, then it was doubly 'differentiated' to obtain few measurements of dE/d x inside a 2 cm gap. This permits an increase of the boundary momentum of 2 (sigma) separation from 0.6 GeV/c to 0.68 GeV/c. The comparison with the Monte Carlo result shows good agreement. (author). 11 refs.; 9 figs. (Atomindex citation 26:011697)

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