A study of collimation and extraction of the U-70 accelerator beam using an axially oriented crystal

Autor: N. F. Shul’ga, V. N. Gorlov, Yu. A. Chesnokov, S. F. Reshetnikov, V. I. Truten, D. A. Savin, M. K. Bulgakov, Vladimir T. Baranov, I. V. Ivanova, P. N. Chirkov, I. S. Voinov, V. I. Terekhov, V. B. Ganenko, V. A. Maisheev, I. V. Kirillin, A. G. Afonin, E. A. Syshchikov, I. A. Yazynin
Rok vydání: 2016
Předmět:
Zdroj: Instruments and Experimental Techniques. 59:196-202
ISSN: 1608-3180
0020-4412
DOI: 10.1134/s0020441216020019
Popis: Extraction and collimation of the 50-GeV proton beam with a bent silicon crystal at the U-70 accelerator of the Institute for High Energy Physics (Protvino, Russia) was investigated. Until recently, proton beam extraction (and collimation) from accelerators has been effected using crystals with the (111) or (110) plane orientation, when the beam propagates far from the crystal axes. In the described experiment, the silicon crystal was oriented so that the proton beam was incident on it near the 〈110〉 axis. Under these conditions, a part of the beam was deflected by the crystal owing to the dynamic chaos phenomenon. The maximum beam extraction efficiency was as high as ~80%.
Databáze: OpenAIRE