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Proton Beam Extraction by a Short Silicon Crystal from the IHEP Accelerator
Afonin A. G., Baranov V. T., Birjukov V. M., Kardash A. A., Kotov V. I., Maisheev V. A., Terekhov V. I.,
Troyanov E. F., Fedotov Yu. S., Chepegin V. N., Chesnokov Yu. A., Ivanov Yu. M.
In the review, major attention is paid to the application of bent crystals
for extraction of accelerated beams from high-energy accelerators. This
paper presents the physical background for particle extraction from IHEP
accelerator by means of short bent silicon crystals, analyses the results of
the studies, considers in detail the regime of simultaneous work of crystal
extraction and several internal targets. It has been shown experimentally
that by use of short crystals one can obtain extracted beams with intensity
of ~1012 proton/cycle with efficiency of ~85 %. Finally
we discuss some new possibilities of steering high-energy charged-particle
beams by bent crystals.
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