7 papers
Extraction of the Proton Beam from the 70 GeV IHEP Accelerator
A. G. Afonin, V. T. Baranov, V. M. Biryukov +9
This paper presents the physical background for particle extraction from IHEP accelerator using short bent silicon crystals, analyses the results of the studies, considers in detai…
Accelerator Tests of Crystal Undulators
V. M. Biryukov, A. G. Afonin, V. T. Baranov +22
A series of Silicon crystal undulator samples were produced based on the approach presented in PRL 90 (2003) 034801, with the periods of undulation from 0.1 mm to 1 mm, and the num…
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…