The upgrade of the DA4ΦNE 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 → 2π0 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 have designed a tile calorimeter, QCALT, where each single tile is readout by mean of WLS fibers connected to SiPM for a total granularity of 2400 channels. We show the tests performed to qualify the basic components, the overall design of the calorimeter and the status of construction.
QCALT: A tile calorimeter for the KLOE-2 experiment
Martini M
2010-01-01
Abstract
The upgrade of the DA4ΦNE 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 → 2π0 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 have designed a tile calorimeter, QCALT, where each single tile is readout by mean of WLS fibers connected to SiPM for a total granularity of 2400 channels. We show the tests performed to qualify the basic components, the overall design of the calorimeter and the status of construction.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
