Published October 17, 2008 | Version v1
Journal article Metadata-only

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

Creators

  • 1. CERN, European Organization for Nuclear Research, CH-1211 Geneva 23 (Switzerland)
  • 2. INFM-CNR, Via Valotti 9, 25133 Brescia (Italy)
  • 3. INFN Sezione di Ferrara, Dipartimento di Fisica, Universita di Ferrara, Via Saragat 1, 44100 Ferrara (Italy)
  • 4. INFN Laboratori Nazionali di Legnaro, Viale Universita 2, 35020 Legnaro (PD) (Italy)
  • 5. INFN Sezione di Perugia and Universita degli Studi di Perugia, Dipartimento di Fisica, Via Pascoli, 06123 Perugia (Italy)
  • 6. INFN Sezione di Roma, Piazzale Aldo Moro 2, 00185 Rome (Italy)
  • 7. INFN Sezione di Trieste, Via Valerio 2, 34127 Trieste (Italy)
  • 8. Institute of High Energy Physics, Moscow Region, RU-142284 Protvino (Russian Federation)

Description

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 μrad with about 30% efficiency. The contribution of hyperchanneled states of protons to the observed beam deflection was less than 2% according to simulation results

Additional details

Identifiers

DOI
10.1103/PhysRevLett.101.164801;

Publishing Information

Journal Title
Physical Review Letters
Journal Volume
101
Journal Issue
16
Journal Page Range
p. 164801-164801.4
ISSN
0031-9007
CODEN
PRLTAO

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
40054024
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
Descriptors DEI
CERN SPS SYNCHROTRON; CHANNELING; CRYSTALS; GEV RANGE 100-1000; PROTONS; SCATTERING; SILICON; SIMULATION
Descriptors DEC
ACCELERATORS; BARYONS; CYCLIC ACCELERATORS; ELEMENTARY PARTICLES; ELEMENTS; ENERGY RANGE; FERMIONS; GEV RANGE; HADRONS; NUCLEONS; SEMIMETALS; SYNCHROTRONS

Optional Information

Notes
(c) 2008 The American Physical Society