Seminars and Colloquia
A silicon based cosmic ray telescope as an external tracker to measure detector performance
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Europe/Rome
131 (INFN edificio C)
131
INFN edificio C
Description
High energy physics experiments in the intensity frontier push at the limit the detector resolutions as in the case of tracking devices. In order to compare the performance of many possible small size tracking prototypes, a high resolution cosmic ray tracker may be used as an external track reference. A cosmic ray tracker, consisting in an assembly of spare ladders of the external layers of the Silicon Vertex Tracker of the BaBar experiment, has been constructed at INFN sezione di Pisa by members of the MEG and Babar groups with the help of the electronics and high technology workshops. The facility provides the detector under test with an external track with an intrinsic resolution of 15-30 μm on its plane. The DAQ originally used in the BaBar experiment had to be replaced by custom design boards coupled with an acquisition front-end PC through commercial FPGA evaluation boards. We show that the facility is operative, we present the results of the first test runs and possible future applications.