Magnetic field simulation in the central region of the VINCY Cyclotron
Нема приказа
Аутори
Vorojtsov, SBVorozhtsov, AS
Nešković, Nebojša B.
Ristić-Đurović, Jasna L.
Cirkovic, S
Vujović, Velibor V.
Чланак у часопису
Метаподаци
Приказ свих података о документуАпстракт
The VINCY Cyclotron is under construction at the Vinca Institute of Nuclear Sciences, Laboratory of Physics, Belgrade, Serbia and Montenegro. One of the most difficult problems to solve is the magnetic field shaping in the central region of the machine in a wide range of field levels. The latest measurements showed a very large magnetic field depression in the central region. The following shimming elements are used for the field shaping in the central region: a central plug and a spacer ring between the sectors and the median pole plate. These elements should both release enough vertical space for the inflector and the RF electrodes and produce a field bump in the very center of the machine. Concerning this region, one has to mention the following facts: sectors are absent or very reduced, and the small gap between the sectors restricts remarkably the possibilities of producing a field bump. Therefore, the design of these elements is the most critical one. Optimization of the central ...plug gap affects both the vertical sparking probability and the beam dynamics at higher harmonic modes. The redesign of the magnetic structure of the central region relied solely on the detailed 3-dimensional calculations to speed up the experimental shimming procedure. The desired calculated magnetic field shapes, which include the influence of the plug, have been produced and confirmed by the particle tracing for the 3-field levels. The final tailoring of the field map will be performed by the measurements at the full-size magnet.
Кључне речи:
cyclotron / central region / magnetic field / plug / beam dynamicsИзвор:
Nukleonika, 2003, 48, S39-S44Напомена:
- 33rd European Cyclotron Progress Meeting, Sep 17-21, 2002, Warsaw, Poland
Колекције
Институција/група
VinčaTY - JOUR AU - Vorojtsov, SB AU - Vorozhtsov, AS AU - Nešković, Nebojša B. AU - Ristić-Đurović, Jasna L. AU - Cirkovic, S AU - Vujović, Velibor V. PY - 2003 UR - https://vinar.vin.bg.ac.rs/handle/123456789/6380 AB - The VINCY Cyclotron is under construction at the Vinca Institute of Nuclear Sciences, Laboratory of Physics, Belgrade, Serbia and Montenegro. One of the most difficult problems to solve is the magnetic field shaping in the central region of the machine in a wide range of field levels. The latest measurements showed a very large magnetic field depression in the central region. The following shimming elements are used for the field shaping in the central region: a central plug and a spacer ring between the sectors and the median pole plate. These elements should both release enough vertical space for the inflector and the RF electrodes and produce a field bump in the very center of the machine. Concerning this region, one has to mention the following facts: sectors are absent or very reduced, and the small gap between the sectors restricts remarkably the possibilities of producing a field bump. Therefore, the design of these elements is the most critical one. Optimization of the central plug gap affects both the vertical sparking probability and the beam dynamics at higher harmonic modes. The redesign of the magnetic structure of the central region relied solely on the detailed 3-dimensional calculations to speed up the experimental shimming procedure. The desired calculated magnetic field shapes, which include the influence of the plug, have been produced and confirmed by the particle tracing for the 3-field levels. The final tailoring of the field map will be performed by the measurements at the full-size magnet. T2 - Nukleonika T1 - Magnetic field simulation in the central region of the VINCY Cyclotron VL - 48 SP - S39 EP - S44 UR - https://hdl.handle.net/21.15107/rcub_vinar_6380 ER -
@article{ author = "Vorojtsov, SB and Vorozhtsov, AS and Nešković, Nebojša B. and Ristić-Đurović, Jasna L. and Cirkovic, S and Vujović, Velibor V.", year = "2003", abstract = "The VINCY Cyclotron is under construction at the Vinca Institute of Nuclear Sciences, Laboratory of Physics, Belgrade, Serbia and Montenegro. One of the most difficult problems to solve is the magnetic field shaping in the central region of the machine in a wide range of field levels. The latest measurements showed a very large magnetic field depression in the central region. The following shimming elements are used for the field shaping in the central region: a central plug and a spacer ring between the sectors and the median pole plate. These elements should both release enough vertical space for the inflector and the RF electrodes and produce a field bump in the very center of the machine. Concerning this region, one has to mention the following facts: sectors are absent or very reduced, and the small gap between the sectors restricts remarkably the possibilities of producing a field bump. Therefore, the design of these elements is the most critical one. Optimization of the central plug gap affects both the vertical sparking probability and the beam dynamics at higher harmonic modes. The redesign of the magnetic structure of the central region relied solely on the detailed 3-dimensional calculations to speed up the experimental shimming procedure. The desired calculated magnetic field shapes, which include the influence of the plug, have been produced and confirmed by the particle tracing for the 3-field levels. The final tailoring of the field map will be performed by the measurements at the full-size magnet.", journal = "Nukleonika", title = "Magnetic field simulation in the central region of the VINCY Cyclotron", volume = "48", pages = "S39-S44", url = "https://hdl.handle.net/21.15107/rcub_vinar_6380" }
Vorojtsov, S., Vorozhtsov, A., Nešković, N. B., Ristić-Đurović, J. L., Cirkovic, S.,& Vujović, V. V.. (2003). Magnetic field simulation in the central region of the VINCY Cyclotron. in Nukleonika, 48, S39-S44. https://hdl.handle.net/21.15107/rcub_vinar_6380
Vorojtsov S, Vorozhtsov A, Nešković NB, Ristić-Đurović JL, Cirkovic S, Vujović VV. Magnetic field simulation in the central region of the VINCY Cyclotron. in Nukleonika. 2003;48:S39-S44. https://hdl.handle.net/21.15107/rcub_vinar_6380 .
Vorojtsov, SB, Vorozhtsov, AS, Nešković, Nebojša B., Ristić-Đurović, Jasna L., Cirkovic, S, Vujović, Velibor V., "Magnetic field simulation in the central region of the VINCY Cyclotron" in Nukleonika, 48 (2003):S39-S44, https://hdl.handle.net/21.15107/rcub_vinar_6380 .