Compact beam position monitor using a segmented toroidal coil
Abstract
A new, compact beam position monitor based on segmented a toroidal coil surrounding the charged particle beam has been investigated. It makes use of the induced voltages in the windings instead of the induced charge imbalance on capacitor plates in the conventional beam position monitors. We theoretically investigate the response of the coils to the bunched particle beam based on a lumped element model and compare it with measurements in the laboratory and in the storage ring COSY, in terms of beam displacement. As to the frequency response of the coils, we find a resonant behavior, which may be exploited to increase the sensitivity of the device further. The resolution presently achieved is about 5 micrometer in a one second time interval for a beam current of 0.5 mA.
Authors 7
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Affiliation as printed
) Institute for Nuclear Physics , Forschungszentrum Jülich , 52425 , Jülich , Germany
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Forschungszentrum Jülich · RWTH Aachen University
Affiliation as printed
) Institute for Nuclear Physics , Forschungszentrum Jülich , 52425 , Jülich , Germany
) Physics Institute III B , RWTH Aachen University , 52074 , Aachen , Germany
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Forschungszentrum Jülich · Brookhaven National Laboratory
Affiliation as printed
) Institute for Nuclear Physics , Forschungszentrum Jülich , 52425 , Jülich , Germany
) present address Brookhaven National Laboratory , Upton , New York , 11973 , USA
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Affiliation as printed
) Central Institute of Engineering , Electronics and Analytics , Forschungszentrum Jülich , 52425 Jülich , Germany
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Affiliation as printed
) High Energy Physics Institute , Tbilisi State University , 0186 Tbilisi , Georgia
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GSI Helmholtz Centre for Heavy Ion Research · RWTH Aachen University
Affiliation as printed
) GSI Helmholtz Centre for Heavy Ion Research , 64291 Darmstadt , Germany
) Physics Institute III B , RWTH Aachen University , 52074 , Aachen , Germany
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