Beam dynamics and electromagnetic studies of a 3 MeV, 325 MHz radio frequency quadrupole accelerator
We present the beam dynamics and electromagnetic studies of a 3 MeV, 325 MHz H− radio frequency quadrupole (RFQ) accelerator for the proposed Indian Spallation Neutron Source project. We have followed a design approach, where the emittance growth and the losses are minimized by keeping the tune depr...
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2018-01-01
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Series: | EPJ Nuclear Sciences & Technologies |
Online Access: | https://doi.org/10.1051/epjn/2018004 |
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doaj-485be9d9012a4bcbab186da09ece019f2021-02-02T02:23:08ZengEDP SciencesEPJ Nuclear Sciences & Technologies2491-92922018-01-014910.1051/epjn/2018004epjn170030Beam dynamics and electromagnetic studies of a 3 MeV, 325 MHz radio frequency quadrupole acceleratorGaur RahulKumar VinitWe present the beam dynamics and electromagnetic studies of a 3 MeV, 325 MHz H− radio frequency quadrupole (RFQ) accelerator for the proposed Indian Spallation Neutron Source project. We have followed a design approach, where the emittance growth and the losses are minimized by keeping the tune depression ratio larger than 0.5. The transverse cross-section of RFQ is designed at a frequency lower than the operating frequency, so that the tuners have their nominal position inside the RFQ cavity. This has resulted in an improvement of the tuning range, and the efficiency of tuners to correct the field errors in the RFQ. The vane-tip modulations have been modelled in CST-MWS code, and its effect on the field flatness and the resonant frequency has been studied. The deterioration in the field flatness due to vane-tip modulations is reduced to an acceptable level with the help of tuners. Details of the error study and the higher order mode study along with mode stabilization technique are also described in the paper.https://doi.org/10.1051/epjn/2018004 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Gaur Rahul Kumar Vinit |
spellingShingle |
Gaur Rahul Kumar Vinit Beam dynamics and electromagnetic studies of a 3 MeV, 325 MHz radio frequency quadrupole accelerator EPJ Nuclear Sciences & Technologies |
author_facet |
Gaur Rahul Kumar Vinit |
author_sort |
Gaur Rahul |
title |
Beam dynamics and electromagnetic studies of a 3 MeV, 325 MHz radio frequency quadrupole accelerator |
title_short |
Beam dynamics and electromagnetic studies of a 3 MeV, 325 MHz radio frequency quadrupole accelerator |
title_full |
Beam dynamics and electromagnetic studies of a 3 MeV, 325 MHz radio frequency quadrupole accelerator |
title_fullStr |
Beam dynamics and electromagnetic studies of a 3 MeV, 325 MHz radio frequency quadrupole accelerator |
title_full_unstemmed |
Beam dynamics and electromagnetic studies of a 3 MeV, 325 MHz radio frequency quadrupole accelerator |
title_sort |
beam dynamics and electromagnetic studies of a 3 mev, 325 mhz radio frequency quadrupole accelerator |
publisher |
EDP Sciences |
series |
EPJ Nuclear Sciences & Technologies |
issn |
2491-9292 |
publishDate |
2018-01-01 |
description |
We present the beam dynamics and electromagnetic studies of a 3 MeV, 325 MHz H− radio frequency quadrupole (RFQ) accelerator for the proposed Indian Spallation Neutron Source project. We have followed a design approach, where the emittance growth and the losses are minimized by keeping the tune depression ratio larger than 0.5. The transverse cross-section of RFQ is designed at a frequency lower than the operating frequency, so that the tuners have their nominal position inside the RFQ cavity. This has resulted in an improvement of the tuning range, and the efficiency of tuners to correct the field errors in the RFQ. The vane-tip modulations have been modelled in CST-MWS code, and its effect on the field flatness and the resonant frequency has been studied. The deterioration in the field flatness due to vane-tip modulations is reduced to an acceptable level with the help of tuners. Details of the error study and the higher order mode study along with mode stabilization technique are also described in the paper. |
url |
https://doi.org/10.1051/epjn/2018004 |
work_keys_str_mv |
AT gaurrahul beamdynamicsandelectromagneticstudiesofa3mev325mhzradiofrequencyquadrupoleaccelerator AT kumarvinit beamdynamicsandelectromagneticstudiesofa3mev325mhzradiofrequencyquadrupoleaccelerator |
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