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Directional Microwave Antenna Structures for the Detection of Dark Matter Axions

Present detectors for dark matter axions in the microwave range use lower-order cavity modes which inherently suer from low directivity and a small detection volume for higher axion masses. We discuss here an alternative type of axion antenna structure in the microwave range. It consists of a rectan...

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Detalles Bibliográficos
Autores principales: Betz, M, Caspers, F, Zioutas, K
Lenguaje:eng
Publicado: 2011
Materias:
Acceso en línea:http://cds.cern.ch/record/1374676
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author Betz, M
Caspers, F
Zioutas, K
author_facet Betz, M
Caspers, F
Zioutas, K
author_sort Betz, M
collection CERN
description Present detectors for dark matter axions in the microwave range use lower-order cavity modes which inherently suer from low directivity and a small detection volume for higher axion masses. We discuss here an alternative type of axion antenna structure in the microwave range. It consists of a rectangular waveguide, shorted at its ends, representing a TE 10n-resonator. It is placed in the bore of a wiggler or undulator magnet. The magnetic eld strength is sinusoidal along the magnet length which is exploited to work around the disadvantages of a lower-order mode cavity. Movable dielectric slabs at the side of the structure provide a straightforward way to scan over a range of axion masses in the order of 10%.
id cern-1374676
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2011
record_format invenio
spelling cern-13746762019-09-30T06:29:59Zhttp://cds.cern.ch/record/1374676engBetz, MCaspers, FZioutas, KDirectional Microwave Antenna Structures for the Detection of Dark Matter AxionsAccelerators and Storage RingsPresent detectors for dark matter axions in the microwave range use lower-order cavity modes which inherently suer from low directivity and a small detection volume for higher axion masses. We discuss here an alternative type of axion antenna structure in the microwave range. It consists of a rectangular waveguide, shorted at its ends, representing a TE 10n-resonator. It is placed in the bore of a wiggler or undulator magnet. The magnetic eld strength is sinusoidal along the magnet length which is exploited to work around the disadvantages of a lower-order mode cavity. Movable dielectric slabs at the side of the structure provide a straightforward way to scan over a range of axion masses in the order of 10%.CERN-ATS-Note-2011-066 TECHoai:cds.cern.ch:13746762011-08-11
spellingShingle Accelerators and Storage Rings
Betz, M
Caspers, F
Zioutas, K
Directional Microwave Antenna Structures for the Detection of Dark Matter Axions
title Directional Microwave Antenna Structures for the Detection of Dark Matter Axions
title_full Directional Microwave Antenna Structures for the Detection of Dark Matter Axions
title_fullStr Directional Microwave Antenna Structures for the Detection of Dark Matter Axions
title_full_unstemmed Directional Microwave Antenna Structures for the Detection of Dark Matter Axions
title_short Directional Microwave Antenna Structures for the Detection of Dark Matter Axions
title_sort directional microwave antenna structures for the detection of dark matter axions
topic Accelerators and Storage Rings
url http://cds.cern.ch/record/1374676
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AT caspersf directionalmicrowaveantennastructuresforthedetectionofdarkmatteraxions
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