Structured targets and the Landau-Pomeranchuk-Migdal effect
Author(s) -
R. Blankenbecler
Publication year - 1997
Publication title -
physical review. d. particles, fields, gravitation, and cosmology/physical review. d. particles and fields
Language(s) - English
Resource type - Journals
eISSN - 1089-4918
pISSN - 0556-2821
DOI - 10.1103/physrevd.55.190
Subject(s) - physics , maxima and minima , photon , coherence (philosophical gambling strategy) , maxima , scattering , radiation , homogeneous , spectral line , landau quantization , coherence length , quantum electrodynamics , condensed matter physics , quantum mechanics , statistical physics , electron , art , mathematical analysis , mathematics , performance art , art history , superconductivity
The Landau-Pomeranchuk-Migdal effect is the suppression of Bethe-Heitler radiation caused by multiple scattering in the target medium. In this paper, the quantum treatment given earlier for finite but homogeneous targets is extended to structured targets. It is shown that radiators composed of separated plates or of a medium with a varying radiation length can exhibit coherence maxima and minima in their photon spectra. {copyright} {ital 1997} {ital The American Physical Society}
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