Bent silicon crystals in channeling mode are already used for beam extraction and collimation in particle accelerators. Volume reflection of beam particles is more efficient than beam channeling; however, the mean deflection angle is rather small. An experiment on the deflection of a 400 GeV/c proton beam and a 150 GeV/c π– beam at CERN using a multistrip silicon deflector in reflection mode is described. The mean deflection angle of beam particles has been considerably increased due to sequential volume reflections real ized in the deflector. This gives possibility for a successful usage of the multistrip deflectors for beam colli mation in highenergy accelerators.
Comparative results on the deflection of positively and negatively charged particles by multiple volume reflections in a multi-strip silicon deflector / Scandale, W.; Arduini, G.; Butcher, M.; Cerutti, F.; Garattini, M.; Gilardoni, S.; Lechner, A.; Losito, R.; Masi, A.; Mereghetti, A.; Metral, E.; Mirarchi, D.; Montesano, S.; Redaelli, S.; Rossi, Roberto; Schoofs, P.; Smirnov, G.; Bagli, E.; Bandiera, L.; Baricordi, S.; Dalpiaz, P.; Germogli, G.; Guidi, V.; Mazzolari, A.; Vincenzi, D.; Claps, G.; Dabagov, S.; Hampai, D.; Murtas, F.; Cavoto, Gianluca; Iacoangeli, F.; Ludovici, L.; Santacesaria, R.; Valente, P.; Galluccio, F.; Afonin, A. G.; Chesnokov, Y. u. A.; Durum, A. A.; Maisheev, V. A.; Sandomirskiy, Y. u. E.; Yanovich, A. A.; Kovalenko, A. D.; Taratin, A. M.; Gavrikov, Y. u. A.; Ivanov, Y. u. M.; Lapina, L. P.; Ferguson, W.; Fulcher, J.; Hall, G.; Pesaresi, M.; Raymond, M.; Bolognini, D.; Hasan, S.; Prest, M.; Vallazza, E.. - In: JETP LETTERS. - ISSN 0021-3640. - 101:10(2015), pp. 679-684. [10.1134/S0021364015100124]
Comparative results on the deflection of positively and negatively charged particles by multiple volume reflections in a multi-strip silicon deflector
ROSSI, ROBERTOMembro del Collaboration Group
;CAVOTO, GianlucaMembro del Collaboration Group
;
2015
Abstract
Bent silicon crystals in channeling mode are already used for beam extraction and collimation in particle accelerators. Volume reflection of beam particles is more efficient than beam channeling; however, the mean deflection angle is rather small. An experiment on the deflection of a 400 GeV/c proton beam and a 150 GeV/c π– beam at CERN using a multistrip silicon deflector in reflection mode is described. The mean deflection angle of beam particles has been considerably increased due to sequential volume reflections real ized in the deflector. This gives possibility for a successful usage of the multistrip deflectors for beam colli mation in highenergy accelerators.| File | Dimensione | Formato | |
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