Broad angular anisotropy of multiple scattering in a Si crystal

Autor: A. I. Sytov, Laura Bandiera, P. Klag, Sara Carturan, M. Romagnoni, Werner Lauth, Valerio Mascagna, Vincenzo Guidi, Gianluigi Maggioni, Enrico Bagli, M. Prest, M. Campostrini, G. Germogli, A. Berra, D. De Salvador, M. Tamisari, A. Mazzolari, Victor V. Tikhomirov, E. Vallazza, C. Durigello
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Accelerator Physics (physics.acc-ph)
HIGH-ENERGY
BREMSSTRAHLUNG
Physics - Instrumentation and Detectors
Coherent effects
Physics and Astronomy (miscellaneous)
Monte Carlo method
CODE
FOS: Physical sciences
lcsh:Astrophysics
Electron
Computer Science::Digital Libraries
01 natural sciences
Molecular physics
NO
Crystal
SILICON
lcsh:QB460-466
0103 physical sciences
lcsh:Nuclear and particle physics. Atomic energy. Radioactivity
010306 general physics
Engineering (miscellaneous)
Physics
Condensed Matter - Materials Science
Range (particle radiation)
010308 nuclear & particles physics
Scattering
Materials Science (cond-mat.mtrl-sci)
Instrumentation and Detectors (physics.ins-det)
Multiple scattering
Crystal
Coherent effects
Amorphous solid
Multiple scattering
Computer Science::Mathematical Software
Cathode ray
lcsh:QC770-798
Physics - Accelerator Physics
Beam (structure)
Zdroj: European Physical Journal C: Particles and Fields, Vol 80, Iss 1, Pp 1-8 (2020)
European Physical Journal
Popis: We observed reduction of multiple Coulomb scattering of 855 MeV electrons within a Si crystalline plate w.r.t. an amorphous plate with the same mass thickness. The reduction owed to complete or partial suppression of the coherent part of multiple scattering in a crystal vs crystal orientation with the beam. Experimental data were collected at Mainz Mikrotron and critically compared to theoretical predictions and Monte Carlo simulations. Our results highlighted maximal 7 % reduction of the r.m.s. scattering angle at certain beam alignment with the [100] crystal axes. However, partial reduction was recorded over a wide range of alignment of the electron beam with the crystal up to 15 deg. This evidence may be relevant to refine the modelling of multiple scattering in crystals for currently used software, which is interesting for detectors in nuclear, medical, high energy physics.
Comment: 8 pages, 4 figures, submitted to the European Physical Journal C
Databáze: OpenAIRE
Externí odkaz: