Apparatus to study crystal channeling and volume reflection phenomena at the SPS H8 beamline.
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 murad 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) murad with respect to the unperturbed beam, with a silicon crystal whose (111) planes were parallel to the beam.
Scandale
Walter
W
CERN, European Organization for Nuclear Research, CH-1211 Geneva 23, Switzerland.
Efthymiopoulos
Ilias
I
Still
Dean A
DA
Carnera
Alberto
A
Della Mea
Gianantonio
G
De Salvador
Davide
D
Milan
Riccardo
R
Vomiero
Alberto
A
Baricordi
Stefano
S
Chiozzi
Stefano
S
Dalpiaz
Pietro
P
Damiani
Chiara
C
Fiorini
Massimiliano
M
Guidi
Vincenzo
V
Martinelli
Giuliano
G
Mazzolari
Andrea
A
Milan
Emiliano
E
Ambrosi
Giovanni
G
Azzarello
Philipp
P
Battiston
Roberto
R
Bertucci
Bruna
B
Burger
William J
WJ
Ionica
Maria
M
Zuccon
Paolo
P
Cavoto
Gianluca
G
Santacesaria
Roberta
R
Valente
Paolo
P
Vallazza
Erik
E
Afonin
Alexander G
AG
Baranov
Vladimir T
VT
Chesnokov
Yury A
YA
Kotov
Vladilen I
VI
Maisheev
Vladimir A
VA
Yazynin
Igor A
IA
Afanasiev
Sergey V
SV
Kovalenko
Alexander D
AD
Taratin
Alexander M
AM
Bondar
Nikolai F
NF
Denisov
Alexander S
AS
Gavrikov
Yury A
YA
Ivanov
Yuri M
YM
Ivochkin
Vladimir G
VG
Kosyanenko
Sergey V
SV
Lapina
Lyubov P
LP
Levtchenko
Peter M
PM
Petrunin
Anatoli A
AA
Skorobogatov
Vyacheslav V
VV
Suvorov
Vsevolod M
VM
Bolognini
Davide
D
Foggetta
Luca
L
Hasan
Said
S
Prest
Michela
M