8 research outputs found

    Performance of a fine-sampling electromagnetic calorimeter prototype in the energy range from 1 to 19 GeV

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    The fine-sampling electromagnetic calorimeter prototype has been experimentally tested using the 1-19 GeV/c tagged beams of negatively charged particles at the U70 accelerator at IHEP, Protvino. The energy resolution measured by electrons is Delta{E}/E=2.8%/\sqrt{E} + 1.3%. The position resolution for electrons is Delta{x}=3.1 + 15.4/sqrt{E} mm in the center of the cell. The lateral non-uniformity of the prototype energy response to electrons and MIPs has turned out to be negligible. Obtained experimental results are in a good agreement with Monte-Carlo simulations.Comment: Article is prepared for pdflatex using the class elsart. 13 pages, 9 figures in 11 PDF file

    Dispersion of natural modes in a many-layer planar system

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    We derive the recurrence dispersion equations for natural modes of a many-layer planar system. As an illustration a five-layer planar system is considered, and solutions for guided-wave polaritons of such a system are found. The behavior and peculiarities of these solutions are analyzed
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