A high performance apparatus has been designed and built by the H8-RD22 collaboration for the study of channeling and volume reflection phenomena in the interaction of 400 GeV/c protons with bent silicon crystals, during the 2006 data taking in the external beamline H8 of the CERN SPS. High-quality silicon short crystals were bent by either anticlastic or quasimosaic effects. Alignment with the highly parallel (8 µrad divergence) proton beam was guaranteed through a submicroradian goniometric system equipped with both rotational and translational stages. Particle tracking was possible by a series of silicon microstrip detectors with high-resolution and a parallel plate gas chamber, triggered by various scintillating detectors located along the beamline. Experimental observation of volume reflection with 400 GeV/c protons proved true with a deflection angle of (10.4±0.5) µrad with respect to the unperturbed beam, with a silicon crystal whose (111) planes were parallel to the beam.

Apparatus to study crystal channeling and volume reflection phenomena at the SPS H8 beamline

BARICORDI, Stefano;DALPIAZ, Pietro;DAMIANI, Chiara;FIORINI, Massimiliano;GUIDI, Vincenzo;MARTINELLI, Giuliano;MAZZOLARI, Andrea;MILAN, Emiliano;
2008

Abstract

A high performance apparatus has been designed and built by the H8-RD22 collaboration for the study of channeling and volume reflection phenomena in the interaction of 400 GeV/c protons with bent silicon crystals, during the 2006 data taking in the external beamline H8 of the CERN SPS. High-quality silicon short crystals were bent by either anticlastic or quasimosaic effects. Alignment with the highly parallel (8 µrad divergence) proton beam was guaranteed through a submicroradian goniometric system equipped with both rotational and translational stages. Particle tracking was possible by a series of silicon microstrip detectors with high-resolution and a parallel plate gas chamber, triggered by various scintillating detectors located along the beamline. Experimental observation of volume reflection with 400 GeV/c protons proved true with a deflection angle of (10.4±0.5) µrad with respect to the unperturbed beam, with a silicon crystal whose (111) planes were parallel to the beam.
2008
W., Scandale; I., Efthymiopoulos; D. A., Still; A., Carnera; G., Della Mea; D., De Salvador; R., Milan; A., Vomiero; Baricordi, Stefano; S., Chiozzi; Dalpiaz, Pietro; Damiani, Chiara; Fiorini, Massimiliano; Guidi, Vincenzo; Martinelli, Giuliano; Mazzolari, Andrea; Milan, Emiliano; G., Ambrosi; P., Azzarello; R., Battiston; B., Bertucci; W. J., Burger; M., Ionica; P., Zuccon; G., Cavoto; R., Santacesaria; P., Valente; E., Vallazza; A. G., Afonin; V. T., Baranov; Y. A., Chesnokov; V. I., Kotov; V. A., Maisheev; I. A., Yazynin; S. V., Afanasiev; A. D., Kovalenko; A. M., Taratin; N. F., Bondar; A. S., Denisov; Y. A., Gavrikov; Y. M., Ivanov; V. G., Ivochkin; S. V., Kosyanenko; L. P., Lapina; P. M., Levtchenko; A. A., Petrunin; V. V., Skorobogatov; V. M., Suvorov; D., Bolognini; L., Foggetta; S., Hasan; M., Prest
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/524351
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