Design and characterisation of frequency selective conductive materials for electromagnetic fields control

To prevent the electromagnetic (EM) wakefields excitation, protect detectors from damage at a range of installations and facilities including particle accelerators the EM field control is required. Conductive foils or wires providing EM protection and required thermal and mechanical properties are n...

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Bibliographic Details
Published in:Scientific reports 2020-11, Vol.10 (1), p.19351-19351, Article 19351
Main Authors: Konoplev, I. V., Posthuma De Boer, D. W., Warsop, C. M., John, M.
Format: Article
Language:English
Subjects:
639/301/1005
639/301/1023
639/301/1023/1025
639/301/1034
639/766/1130
639/766/25
639/766/930/12
Aluminum
Composite materials
Conductivity
Electromagnetic fields
Graphene
Humanities and Social Sciences
Mechanical properties
multidisciplinary
Particle accelerators
Science
Science (multidisciplinary)
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Summary:To prevent the electromagnetic (EM) wakefields excitation, protect detectors from damage at a range of installations and facilities including particle accelerators the EM field control is required. Conductive foils or wires providing EM protection and required thermal and mechanical properties are normally used. We suggest novel composite materials with uniquely designed frequency selective conductivity enabling them to overcome the properties of the conventional materials, protect from EM fields and supress undesirable phenomena. Theoretical and experimental investigations are carried out and the conductivity of designed and composite (dual-layer) aluminium/graphene metamaterials as well as graphene and aluminium foils is studied. The EM properties of these materials are compared, and conditions of full and partial electromagnetic transparency are discussed. Results observed allow engineering materials capable of EM field control, instability suppression including those observed in high-intensity particle accelerators and enabling control of an EM field generating media including relativistic charge particle beams.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-020-76447-x