Multiple volume reflection by different planes passing through the < 111 > axis in a bent silicon crystal was observed for the first time for 150 GeV/c negative particles, pi(-) mesons, at one of the secondary beams of the CERN SPS. The beam of pi(-) mesons was deflected opposite to the crystal bend by an angle of about 48 mu rad, which is 4.6 times larger than in a single volume reflection by the (110) bent planes. The one-side deflection efficiency was about 65%. Multiple volume reflection transforms to a single volume reflection when the orientation angle of the < 111 > axis relative to the beam direction is increased.
|Data di pubblicazione:||2011|
|Titolo:||Observation of multiple volume reflection by different planes in one bent silicon crystal for high-energy negative particles|
|Digital Object Identifier (DOI):||10.1209/0295-5075/93/56002|
|Codice identificativo ISI:||WOS:000288322900012|
|Codice identificativo Scopus:||2-s2.0-79953649980|
|Parole Chiave:||volume reflection; bent crystal; negative particles|
|Appare nelle tipologie:||Articolo su Rivista|