QCALT: a tile calorimeter for KLOE-2 upgrade

Details QCALT: a tile calorimeter for KLOE-2 upgrade QCALT: a tile calorimeter for KLOE-2 upgrade

2009-06-05

arxiv.org/abs/0906.1133v1

Physics

Instrumentation and Detectors

Scientific paper

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.

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