Collimation of a Circulating Beam in the U_70 Synchrotron by Use of Reflections in Axially - Oriented Crystals

Abstract

The possibilities of the extraction and collimation of a circulating beam by a new method due to the reflection of particles in crystals with axial orientation were experimentally investigated in the Fall-2010 run at the U_70 synchrotron. Such crystals have positive features, because the axial potential is five times larger than the planar potential. It has been shown that the collimation efficiency can reach 90% due to axial effects in the crystal. Losses of the circulating beam on a collimator have been reduced by several times; this makes it possible to suppress the muon jet near the steel collimator of the circulating beam.

arXiv comment6 pages, 7 figures

References in corpus (2)

• On volume reflection of ultrarelativistic particles in single crystals
• Multiple Volume Reflection from Different Planes Inside One Bent Crystal

Cited by in corpus (3)

• First design of a crystal-based extraction of 6 GeV electrons for the DESY II Booster Synchrotron
• Planar channeling and quasichanneling oscillations in a bent crystal
• Use of a Bent Crystal with a Decreasing Curvature to Increase the Efficiency of the Extraction and Collimation of a Beam in an Accelerator