QCALT: a tile calorimeter for KLOE-2 upgrade

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Authors
Cordelli, M.
Corradi, G.
Happacher, F.
Martini, M.
Miscetti, S.
Paglia, C.
Saputi, A.
Sarra, I.
Tagnani, D.
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Abstract
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The upgrade of the DA$\Phi$NE machine layout requires a modification of the size and position of the inner focusing quadrupoles of KLOE-2 thus asking for the realization of two new calorimeters covering the quadrupoles area. To improve the reconstruction of $K_L\to 2\pi^0$ events with photons hitting the quadrupoles a calorimeter with high efficiency to low energy photons (20-300 MeV), time resolution of less than 1 ns and space resolution of few cm, is needed. To match these requirements, we are designing a tile calorimeter, QCALT, where each single tile is readout by mean of SiPM for a total granularity of 2400 channels. We show first tests of the different calorimeter components.
Keywords
Physics - Instrumentation and Detectors, High Energy Physics - Experiment
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