6–13 Jul 2022
Bologna, Italy
Europe/Rome timezone

Beam test characterization of oriented crystals in strong field conditions

8 Jul 2022, 16:00
15m
Room 4 (Rossa)

Room 4 (Rossa)

Parallel Talk Detectors for Future Facilities, R&D, novel techniques Detectors for Future Facilities, R&D, novel techniques

Speaker

Pietro Monti-Guarnieri (University of Insubria and INFN Milano Bicocca)

Description

It is well known that the lattice structure of a scintillating crystal can influence the development of the electromagnetic processes inside it. For electron and photon beams aligned with the symmetry axis of a crystal, if the strong field condition is satisfied, a reduction of the radiation length X$_0$ is expected. However, these effects have been experimentally observed only in the last few years, with crystal samples limited in number, composition and length. The lack of experimental data for these phenomena makes it harder to properly account for them in the design and simulation of innovative radiation detectors and equipment, such as active beam dumps or compact electromagnetic calorimeters. Recent experiments, performed by the STORM and KLEVER collaborations at the CERN SPS extracted beam lines, demonstrated a significant reduction of X$_0$ for electron and photon beams impinging on a crystal within $\sim 0.1^\circ$ from one of its symmetry axes. This contribution will describe such experiments, reporting preliminary results for a variety of scintillating crystals (a 1 X$_0$ PbWO$_4$, a 2 X$_0$ PbWO$_4$ and a 1 X$_0$ pure W) and also, for the first time, for an oriented Cherenkov crystal (a 1 X$_0$ PbF$_2$).

In-person participation Yes

Primary authors

Laura Bandiera (INFN Ferrara) Luca Bomben (University of Insubria and INFN Milano Bicocca) Stefano Carsi (University of Insubria) Davide De Salvador (University of Padova and INFN Laboratori Nazionali di Legnaro) Eleonora Diociaiuti (INFN Laboratori Nazionali di Frascati) Vincenzo Guidi (University of Ferrara and INFN Ferrara) Viktar Haurylavets Mikhail Korjik Alexander Lobko Silvia Martellotti (INFN Laboratori Nazionali di Frascati) Valerio Mascagna (University of Brescia and INFN Pavia) Andrea Mazzolari (INFN Ferrara) Pietro Monti-Guarnieri (University of Insubria and INFN Milano Bicocca) Matthew Moulson (INFN Laboratori Nazionali di Frascati) Daniele Paesani (INFN Laboratori Nazionali di Frascati) Michela Prest (University of Insubria and INFN Milano Bicocca) Marco Romagnoni (INFN Ferrara) Federico Ronchetti (University of Insubria and INFN Milano Bicocca) Ivano Sarra (INFN Laboratori Nazionali di Frascati) Alessia Selmi (University of Insubria and INFN Milano Bicocca) Francesco Sgarbossa (University of Padova and INFN Laboratori Nazionali di Legnaro) Mattia Soldani (University of Ferrara and INFN Ferrara) Alexei Sytov (INFN Ferrara) Viktor Tikhomirov Erik Silvio Vallazza (INFN Milano Bicocca)

Presentation materials