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IHEP 2010 - 12 (In English) | |
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A.G.Afonin, V.T.Baranov, S.A.Belov, V.N.Gorlov, A.D.Ermolaev, I.V.Ivanova, D.M.Krylov, V.A.Maisheev, D.A.Savin, E.A.Syshchikov, V.I.Terekhov, V.N.Chepegin, Yu.A.Chesnokov,
P.N.Chirkov, I.A.Yazynin (IHEP, Protvino, Russia), S.Bellucci, S.Bini, G. Giannini
(LNF INFN, Frascati, Italy)
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| Study of Beam Extraction and Collimation in
the U-70 Synchrotron with Various Crystal Devices |
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| Protvino, 2010. – p. 11, figs. 12, tables 1, refs.: 10. | ||
Novel crystal technique - array of bent strips and a veer-type reflector, based on thin straight plates - have been used for research of extraction and collimation a circulating beam in the U-70 accelerator at the energy 50 GeV and 1.3 GeV. It is shown, that new devices can effectively steer a beam in a wide energy range. For protons with energy 50 GeV efficiency of extraction and collimation about 90% has been achieved which is record for this method. Reduction of particle losses in 2-3 times was observed also in accelerator at application of different crystals in comparison with the usual one-stage collimation scheme of beam with a steel absorber.
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