The radiation emitted by 180-GeV/c volume-reflected electrons and positrons impinging on a bent crystal has been measured by the H8RD22 Collaboration on the H8 beamline at the CERN SPS. A dedicated spectrometer has been developed to measure high-energy photon spectra (up to similar to 100 GeV) under volume reflection: photon and charged particle beams have been separated by a bending magnet and leptons were detected and tagged by microstrip silicon detectors and a Pb-scintillator sampling calorimeter. A comparison between the experimental and analytical data for the amorphous and volume-reflection cases is presented and the differences are discussed.

Experimental study of the radiation emitted by 180-GeV/c electrons and positrons volume-reflected in a bent crystal

LIETTI, DANIELA;PREST, MICHELA
2009-01-01

Abstract

The radiation emitted by 180-GeV/c volume-reflected electrons and positrons impinging on a bent crystal has been measured by the H8RD22 Collaboration on the H8 beamline at the CERN SPS. A dedicated spectrometer has been developed to measure high-energy photon spectra (up to similar to 100 GeV) under volume reflection: photon and charged particle beams have been separated by a bending magnet and leptons were detected and tagged by microstrip silicon detectors and a Pb-scintillator sampling calorimeter. A comparison between the experimental and analytical data for the amorphous and volume-reflection cases is presented and the differences are discussed.
2009
http://journals.aps.org/pra/abstract/10.1103/PhysRevA.79.012903
Bent silicon crystal; radiation; volume reflection; photon spectra
Scandale, W; Vomiero, A; Baricordi, S.; Dalpiaz, P.; Fiorini, M.; Guidi, V; Mazzolari, A; Milan, R; Della Mea, G; Ambrosi, G.; Bertucci, B; Burger, Wj...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11383/13023
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