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On the influence of crystal structure on the electromagnetic shower development in the lead tungstate crystals
- Source :
- Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 402:35-39
- Publication Year :
- 2017
- Publisher :
- Elsevier BV, 2017.
-
Abstract
- The development of high-energy electromagnetic showers in long oriented lead tungstate crystals, accelerated by the effects induced by the strong field of atomic strings, is simulated for the first time. For that the characteristics of pair production and gamma-radiation by electrons or positrons were first simulated by the direct application of Baier-Katkov formulae in a thin PWO crystal to derive the scaling coefficients of the corresponding Bethe-Heitler cross sections to be incorporated into GEANT4 for the simulation of the electromagnetic shower development in a long crystal. Simulation results demonstrate the significant influence of the crystal structure on the e± and gamma-quanta registration processes in the existing homogeneous electromagnetic calorimeters and gamma-telescopes as well as wide possibilities of improving their performance in future developments.
- Subjects :
- Physics
Nuclear and High Energy Physics
Physics::Instrumentation and Detectors
010308 nuclear & particles physics
business.industry
Astrophysics::High Energy Astrophysical Phenomena
Monte Carlo method
Crystal structure
Electron
01 natural sciences
Computational physics
Crystal
Optics
Positron
Pair production
0103 physical sciences
Development (differential geometry)
010306 general physics
business
Instrumentation
Scaling
Subjects
Details
- ISSN :
- 0168583X
- Volume :
- 402
- Database :
- OpenAIRE
- Journal :
- Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
- Accession number :
- edsair.doi...........0c264bd26e0e2a7ae438eeb0148255ce