TY  - JOUR
AU  - Ristić-Đurović, Jasna L.
AU  - Nešković, Nebojša B.
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4385
AB  - The stripping extraction system of a cyclotron is prized by the range and quality of beams it delivers. The gap size of a cyclotron magnet is one of the parameters which significantly influence the design as well as the output characteristics of the stripping extraction system. The vertical dimension of the beam as well as of the extraction system elements placed inside a vacuum chamber is limited by the magnet gap size. Beside this direct influence, the indirect effect of the magnet gap size on stripping extraction occurs through the magnetic field and its impact on the beam dynamics in the extraction region. The performance of the extraction system is optimized by the proper placement of the point of beam exit from the cyclotron. It is shown that the optimal position of the exit point strongly depends on the magnet gap size. The performance of the optimized stripping extraction system for a smaller gap size is found to be somewhat better.
T2  - IEEE Transactions on Nuclear Science
T1  - Influence of Cyclotron Magnet Gap Size on Stripping Extraction
VL  - 58
IS  - 3
SP  - 1188
EP  - 1195
DO  - 10.1109/TNS.2011.2134867
ER  - 

@article{
author = "Ristić-Đurović, Jasna L. and Nešković, Nebojša B.",
year = "2011",
abstract = "The stripping extraction system of a cyclotron is prized by the range and quality of beams it delivers. The gap size of a cyclotron magnet is one of the parameters which significantly influence the design as well as the output characteristics of the stripping extraction system. The vertical dimension of the beam as well as of the extraction system elements placed inside a vacuum chamber is limited by the magnet gap size. Beside this direct influence, the indirect effect of the magnet gap size on stripping extraction occurs through the magnetic field and its impact on the beam dynamics in the extraction region. The performance of the extraction system is optimized by the proper placement of the point of beam exit from the cyclotron. It is shown that the optimal position of the exit point strongly depends on the magnet gap size. The performance of the optimized stripping extraction system for a smaller gap size is found to be somewhat better.",
journal = "IEEE Transactions on Nuclear Science",
title = "Influence of Cyclotron Magnet Gap Size on Stripping Extraction",
volume = "58",
number = "3",
pages = "1188-1195",
doi = "10.1109/TNS.2011.2134867"
}

Ristić-Đurović, J. L.,& Nešković, N. B.. (2011). Influence of Cyclotron Magnet Gap Size on Stripping Extraction. in IEEE Transactions on Nuclear Science, 58(3), 1188-1195.
https://doi.org/10.1109/TNS.2011.2134867

Ristić-Đurović JL, Nešković NB. Influence of Cyclotron Magnet Gap Size on Stripping Extraction. in IEEE Transactions on Nuclear Science. 2011;58(3):1188-1195.
doi:10.1109/TNS.2011.2134867 .

Ristić-Đurović, Jasna L., Nešković, Nebojša B., "Influence of Cyclotron Magnet Gap Size on Stripping Extraction" in IEEE Transactions on Nuclear Science, 58, no. 3 (2011):1188-1195,
https://doi.org/10.1109/TNS.2011.2134867 . .

TY  - JOUR
AU  - Dobrosavljević, Aleksandar S.
AU  - Nešković, Nebojša B.
AU  - Beličev, Petar
AU  - Čomor, Jožef J.
AU  - Vujović, Velibor V.
AU  - Balvanović, Roman V.
AU  - Ristić-Đurović, Jasna L.
PY  - 2008
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3600
AB  - t present, heavy ion beams from the electron cyclotron resonance (ECR) ion source in the Laboratory of Physics of the Vinca Institute of Nuclear Sciences, Belgrade, Serbia, are employed in a channel for surface modification of materials. The source and channel were commissioned in 1998, and have been used since that time by a number of user groups from the Vinca Institute and other scientific and educational institutions in Serbia. However, since the maximum extraction voltage of the source is +25 kV, sometimes the extracted beams do not have sufficiently high energies for such applications. Therefore, in order to solve this problem, we have decided to construct a new channel, to be used for deeper modification of materials. The beams obtained from the source will be post-accelerated by biasing the target to be irradiated to the negative potentials of down to - 100 W For example, we shall be able to bombard the target with the (132)Xe(24+) beam of the energy of up to 3 MeV, instead of up to 600 keV, in the case without the biasing system. An additional possibility will be to bias the target to the positive potentials of up to +25 kV and thus decelerate the beams extracted from the source down to the energies of about 1 keV. Consequently, one will be able to modify materials with the beams in a wide energy range, from similar to 1 to similar to 3 MeV, which is rarely met at similar experimental set-ups. It must be noted that changing the post-accelerated or decelerated beam energy in the new channel will be performed simply by adjusting the power supply of the biasing system, without any adjustments of the source and of the transport elements between the source and the interaction chamber. (C) 2008 Elsevier B.V. All rights reserved.
T2  - Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment
T1  - A channel for modification of materials with post-accelerated or decelerated multiply charged ion beams
VL  - 597
IS  - 2-3
SP  - 136
EP  - 141
DO  - 10.1016/j.nima.2008.08.148
ER  - 

@article{
author = "Dobrosavljević, Aleksandar S. and Nešković, Nebojša B. and Beličev, Petar and Čomor, Jožef J. and Vujović, Velibor V. and Balvanović, Roman V. and Ristić-Đurović, Jasna L.",
year = "2008",
abstract = "t present, heavy ion beams from the electron cyclotron resonance (ECR) ion source in the Laboratory of Physics of the Vinca Institute of Nuclear Sciences, Belgrade, Serbia, are employed in a channel for surface modification of materials. The source and channel were commissioned in 1998, and have been used since that time by a number of user groups from the Vinca Institute and other scientific and educational institutions in Serbia. However, since the maximum extraction voltage of the source is +25 kV, sometimes the extracted beams do not have sufficiently high energies for such applications. Therefore, in order to solve this problem, we have decided to construct a new channel, to be used for deeper modification of materials. The beams obtained from the source will be post-accelerated by biasing the target to be irradiated to the negative potentials of down to - 100 W For example, we shall be able to bombard the target with the (132)Xe(24+) beam of the energy of up to 3 MeV, instead of up to 600 keV, in the case without the biasing system. An additional possibility will be to bias the target to the positive potentials of up to +25 kV and thus decelerate the beams extracted from the source down to the energies of about 1 keV. Consequently, one will be able to modify materials with the beams in a wide energy range, from similar to 1 to similar to 3 MeV, which is rarely met at similar experimental set-ups. It must be noted that changing the post-accelerated or decelerated beam energy in the new channel will be performed simply by adjusting the power supply of the biasing system, without any adjustments of the source and of the transport elements between the source and the interaction chamber. (C) 2008 Elsevier B.V. All rights reserved.",
journal = "Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment",
title = "A channel for modification of materials with post-accelerated or decelerated multiply charged ion beams",
volume = "597",
number = "2-3",
pages = "136-141",
doi = "10.1016/j.nima.2008.08.148"
}

Dobrosavljević, A. S., Nešković, N. B., Beličev, P., Čomor, J. J., Vujović, V. V., Balvanović, R. V.,& Ristić-Đurović, J. L.. (2008). A channel for modification of materials with post-accelerated or decelerated multiply charged ion beams. in Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 597(2-3), 136-141.
https://doi.org/10.1016/j.nima.2008.08.148

Dobrosavljević AS, Nešković NB, Beličev P, Čomor JJ, Vujović VV, Balvanović RV, Ristić-Đurović JL. A channel for modification of materials with post-accelerated or decelerated multiply charged ion beams. in Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment. 2008;597(2-3):136-141.
doi:10.1016/j.nima.2008.08.148 .

Dobrosavljević, Aleksandar S., Nešković, Nebojša B., Beličev, Petar, Čomor, Jožef J., Vujović, Velibor V., Balvanović, Roman V., Ristić-Đurović, Jasna L., "A channel for modification of materials with post-accelerated or decelerated multiply charged ion beams" in Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 597, no. 2-3 (2008):136-141,
https://doi.org/10.1016/j.nima.2008.08.148 . .