Abstract
Abstract
We have designed and implemented an experiment to measure
the angular distributions and the energy spectra of the transition
radiation X-rays emitted by fast electrons and positrons crossing
different radiators. Our experiment was selected among the proposals
of the 2021 Beamline for Schools contest, a competition for
high-school students organized every year by CERN, and was performed
at the DESY II Test Beam facility area TB21, using a high-purity
beam of electrons or positrons with momenta in the range from 1 to
6 GeV/c. The measurements were performed using a
100 μm thick silicon pixel detector, with a pitch of
55 μm. Our results are consistent with the
expectations from the theoretical models describing the production
of transition radiation in multilayer regular radiators.
Subject
Mathematical Physics,Instrumentation
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