Back to Search
Start Over
Apparatus to study crystal channeling and volume reflection phenomena at the SPS H8 beamline
- Publication Year :
- 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 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.
- Subjects :
- Physics
Silicon
Physics::Instrumentation and Detectors
business.industry
collimation
Bent molecular geometry
chemistry.chemical_element
Bent crystal
tracking
Monocrystalline silicon
Crystal
Optics
chemistry
Beamline
Goniometer
Reflection (physics)
Physics::Accelerator Physics
business
Instrumentation
Beam (structure)
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....292b89ef0eae54ed9356f0a4ae3bb656