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

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.
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; Duranti, M; Zuccon, P; Cavoto, G; Iacoangeli, F; Luci, C; Pisano, S; Santacesaria, R; Valente, P; Vallazza, E; Afonin, Ag; Chesnokov, Ya; Maisheev, Va; Yazynin, Ia; Kovalenko, Ad; Taratin, Am; Denisov, As; Gavrikov, Ya; Ivanov, Ym; Lapina, Lp; Malyarenko, Lg; Skorobogatov, Vv; Suvarov, Vm; Vavilov, Sa; Bolognini, D; Hasan, S; Lietti, Daniela; Mattera, A; Prest, Michela
File in questo prodotto:
File Dimensione Formato  
PhysRevA.79.012903.pdf

accesso aperto

Descrizione: PDF editoriale
Tipologia: Altro materiale allegato
Licenza: Creative commons
Dimensione 1.09 MB
Formato Adobe PDF
1.09 MB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11383/13023
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 51
  • ???jsp.display-item.citation.isi??? 50
social impact