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Crystal experiments on efficient beam extraction
A. G. Afonin, V. M. Biryukov, V. T. Baranov +13
Silicon crystal was channeling and extracting 70-GeV protons from the U-70 accelerator with efficiency of 85.3+-2.8% as measured for a beam of 10^12 protons directed towards crysta…
Crystal collimation experiment on 70-GeV proton accelerator
A. G. Afonin, V. M. Biryukov, V. N. Chepegin +8
The first proof-of-principle experiment on "crystal collimation" was performed with 70-GeV protons on IHEP accelerator. A bent crystal installed in the ring as a primary element up…
Progress in crystal extraction and collimation
A. G. Afonin, V. M. Biryukov, V. T. Baranov +13
Recent IHEP Protvino experiments show efficiencies of crystal-assisted slow extraction and collimation of 85.3+-2.8%, at the intensities of the channeled beam on the order of 10^12…
New projects of crystal extraction at IHEP 70-GeV accelerator
A. G. Afonin, V. M. Biryukov, V. N. Chepegin +8
Using channeling in a 5-mm crystal with bending angle of 0.65 mrad, a record high efficiency, over 60%, of particle extraction from accelerator was achieved. The extracted beam int…