Beam deflection due to axial channeling in a silicon crystal bent along the < 111 > axis was observed with 400 GeV/c protons at the CERN Super Proton Synchrotron. The condition for doughnut scattering of protons by the atomic strings of the crystal was attained. Such a condition allowed one to observe a beam deflection of 50 mu rad with about 30% efficiency. The contribution of hyperchanneled states of protons to the observed beam deflection was less than 2% according to simulation results.

High-Efficiency Deflection of High-Energy Protons through Axial Channeling in a Bent Crystal

PREST, MICHELA
2008-01-01

Abstract

Beam deflection due to axial channeling in a silicon crystal bent along the < 111 > axis was observed with 400 GeV/c protons at the CERN Super Proton Synchrotron. The condition for doughnut scattering of protons by the atomic strings of the crystal was attained. Such a condition allowed one to observe a beam deflection of 50 mu rad with about 30% efficiency. The contribution of hyperchanneled states of protons to the observed beam deflection was less than 2% according to simulation results.
2008
http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.101.164801
Bent silicon crystal; axial channeling; doughnut scattering
Scandale, W; Vomiero, A; Baricordi, S; Dalpiaz, P; Fiorini, M; Guidi, V; Mazzolari, A; Della Mea, G; Milan, R; Ambrosi, G; Bertucci, B; Burger, Wj; Zu...espandi
File in questo prodotto:
File Dimensione Formato  
PhysRevLett.101.164801.pdf

accesso aperto

Descrizione: PDF editoriale
Tipologia: Altro materiale allegato
Licenza: Creative commons
Dimensione 964.73 kB
Formato Adobe PDF
964.73 kB 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: https://hdl.handle.net/11383/13014
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 47
  • ???jsp.display-item.citation.isi??? 47
social impact