✍ Scribed by C. Favuzzi; G. Ferraro; P. Fusco; F. Gargano; N. Giglietto; F. Giordano; F. Loparco; M.N. Mazziotta; S. Rainò; P. Spinelli
No coin nor oath required. For personal study only.
The channeling radiation is emitted by fast charged particles crossing a crystal target in a direction nearly parallel to the crystal axis or planar directions. The incident particles are trapped in the potential wells due to the crystal lattice, resulting in a coherence effect in the emitted radiation. Since the total energy of the emitted radiation depends on the Lorentz factor as g 2 , channeling radiation can be applied to discriminate between different particles with the same momentum in a collimated beam. To study this application of the channeling radiation, we have performed a beam test campaign at the CERN PS-T9 and SPS-H4 facilities using a 500 mm thick /1 1 0S silicon crystal. A NaI calorimeter has been used to detect the channeling gamma-rays produced in the crystal. The electron (positron) pion identification performance has been studied. The preliminary results will be shown and the perspectives will be discussed.
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