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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...
Autores principales: | , , |
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Lenguaje: | eng |
Publicado: |
2011
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Materias: | |
Acceso en línea: | http://cds.cern.ch/record/1374676 |
_version_ | 1780922939903836160 |
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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 |
work_keys_str_mv | AT betzm directionalmicrowaveantennastructuresforthedetectionofdarkmatteraxions AT caspersf directionalmicrowaveantennastructuresforthedetectionofdarkmatteraxions AT zioutask directionalmicrowaveantennastructuresforthedetectionofdarkmatteraxions |