The Investigations Of Beam Extraction And Collimation At U-70 Proton Synchrotron Of IHEP By Using Short Silicon Crystals

A. G. Afonine , V. T. Baranov , V. M. Biryukov , V. N. Chepegin , Y. A. Chesnokov , Y. S. Fedotov , V. I. Kotov , V. A. Maisheev

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V. I. Terekhov E. F. Troyanov A. Drees D. Trbojevic W. Scandale M. B. H. Breese V. Guidi G. Martinelli M. Stefancich D. Vincenzi

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classification ✦ hep-ex

keywords extractionbeamcollimationprotoncrystalcrystalsihepintensity

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The new results of using short (2-4mm) bent crystals for extraction and collimation of proton beam at IHEP 70 Gev proton synchrotron are reported. A broad range of energies from 6 to 65 GeV has been studied in the same crystal collimation set-up. The efficiency of extraction more than 85% and intensity more than 10E12 were obtained by using crystal with the length 2-mm and the angle 1 mrad. The new regime of extraction is applied now at the accelerator to deliver the beam for different experimental setups within the range of intensity 10E7-10E12ppp.

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The Investigations Of Beam Extraction And Collimation At U-70 Proton Synchrotron Of IHEP By Using Short Silicon Crystals

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