Development of an advanced modular setup for the on beam characterization of oriented crystals.

Monti-Guarnieri P., Bandiera L., Bomben L., Carsi S., De Salvador D., Diociaiuti E., Guidi V., Haurylavets V., Korjik M., Lobko A., Martellotti S., Mascagna V., Mazzolari A., Moulson M., Paesani D., Prest M., Romagnoni M., Ronchetti F., Sarra I., Selmi A., Sgarbossa F., Soldani M., Sytov A., Tikhomirov V., Vallazza E.
  Venerdì 16/09   15:30 - 19:00   Aula B - Maria Goeppert-Mayer   I - Fisica nucleare e subnucleare   Presentazione
Recently, the particle physics community has put an increasing effort in developing radiation detectors and equipment based on oriented crystals. A key feature that distinguishes an oriented crystal from the ordinary matter is the reduction of the radiation length ($X_0$) seen by electrons, positrons and photons crossing the lattice along one of its symmetry axes. This effect has been experimentally observed only in the last few years and with samples limited in number, composition and length. In order to define a standardized procedure for the characterization of the oriented crystals, the INSULAB research group has developed an advanced modular setup, which allows to study the features of any crystal sample with both electron and photon beams. This contribution will describe the key elements of this setup ($i.e.$, silicon strip trackers, plastic scintillators, SiPMs coupled to the crystal under test and an electromagnetic spectrometer) and will focus on their performances, which have been evaluated during several beam tests, performed at the CERN and DESY extracted beam lines.