TY  - JOUR
AU  - Telečki, Igor N.
AU  - Petrović, Srđan M.
AU  - Beličev, Petar
AU  - Radenovic, B.
AU  - Balvanović, Roman V.
AU  - Bojović, Boško
AU  - Nešković, Nebojša B.
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5158
AB  - This paper is devoted to the focusing properties of a square electrostatic rainbow lens, which is a novel ion beam optical element. We consider the transmission of parallel and non-parallel proton beams of the initial kinetic energy of 10 keV through this lens. The potential of the electrodes of the lens is chosen to be 2 kV. The electrostatic potential and components of the electric field in the region of the lens are calculated using a three-dimensional finite element computer code. We investigate the spatial and angular distributions of protons propagating through the lens and in the drift space after it. It is confirmed that the evolutions of these distributions are determined by the evolutions of the corresponding rainbow lines, generated using the theory of crystal rainbows. The beam is separated into two components. One beam component, appearing as a beam core, is generated dominantly by the focused protons. Its boundary line in the transverse position plane can be very well approximated by a hypotrochoid. The other beam component is generated dominantly by the defocused protons. We present the focusing coefficient of the lens, the confining coefficients of the lens for the focused and defocused protons, the density of the beam core, the vertical or horizontal emittance of the beam core, and the brightness of the beam core. (C) 2012 Elsevier B.V. All rights reserved.
T2  - Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment
T1  - Focusing properties of a square electrostatic rainbow lens
VL  - 694
SP  - 224
EP  - 233
DO  - 10.1016/j.nima.2012.08.051
ER  - 

@article{
author = "Telečki, Igor N. and Petrović, Srđan M. and Beličev, Petar and Radenovic, B. and Balvanović, Roman V. and Bojović, Boško and Nešković, Nebojša B.",
year = "2012",
abstract = "This paper is devoted to the focusing properties of a square electrostatic rainbow lens, which is a novel ion beam optical element. We consider the transmission of parallel and non-parallel proton beams of the initial kinetic energy of 10 keV through this lens. The potential of the electrodes of the lens is chosen to be 2 kV. The electrostatic potential and components of the electric field in the region of the lens are calculated using a three-dimensional finite element computer code. We investigate the spatial and angular distributions of protons propagating through the lens and in the drift space after it. It is confirmed that the evolutions of these distributions are determined by the evolutions of the corresponding rainbow lines, generated using the theory of crystal rainbows. The beam is separated into two components. One beam component, appearing as a beam core, is generated dominantly by the focused protons. Its boundary line in the transverse position plane can be very well approximated by a hypotrochoid. The other beam component is generated dominantly by the defocused protons. We present the focusing coefficient of the lens, the confining coefficients of the lens for the focused and defocused protons, the density of the beam core, the vertical or horizontal emittance of the beam core, and the brightness of the beam core. (C) 2012 Elsevier B.V. All rights reserved.",
journal = "Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment",
title = "Focusing properties of a square electrostatic rainbow lens",
volume = "694",
pages = "224-233",
doi = "10.1016/j.nima.2012.08.051"
}

Telečki, I. N., Petrović, S. M., Beličev, P., Radenovic, B., Balvanović, R. V., Bojović, B.,& Nešković, N. B.. (2012). Focusing properties of a square electrostatic rainbow lens. in Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 694, 224-233.
https://doi.org/10.1016/j.nima.2012.08.051

Telečki IN, Petrović SM, Beličev P, Radenovic B, Balvanović RV, Bojović B, Nešković NB. Focusing properties of a square electrostatic rainbow lens. in Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment. 2012;694:224-233.
doi:10.1016/j.nima.2012.08.051 .

Telečki, Igor N., Petrović, Srđan M., Beličev, Petar, Radenovic, B., Balvanović, Roman V., Bojović, Boško, Nešković, Nebojša B., "Focusing properties of a square electrostatic rainbow lens" in Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 694 (2012):224-233,
https://doi.org/10.1016/j.nima.2012.08.051 . .

TY  - JOUR
AU  - Balvanović, Roman V.
AU  - Radenovic, B.
AU  - Beličev, Petar
AU  - Nešković, Nebojša B.
PY  - 2009
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3776
AB  - FAMA is a facility for modification and analysis of materials with ion beams. Due to the wide range of ion beams and energies used in the facility and its future expansion, the need has arisen for faster tuning of ion beams transport control parameters. With this aim, a new approach to modeling ion-beam transport system was developed, based on the Ptolemy II modeling and design framework. A model in Ptolemy II is a hierarchical aggregation of components called actors, which communicate with other actors using tokens, or pieces of data. Each ion optical element is modeled by a composite actor implementing beam matrix transformation function, while tokens carry beam matrix data. A basic library of models of typical ion optical elements is developed, and a complex model of FAMA ion beam transport system is hierarchically integrated with bottom-up approach. The model is extended to include control functions. The developed model is modular, flexible and extensible. The results obtained by simulation on the model demonstrate easy and efficient tuning of beam line control parameters. Fine tuning of control parameters, due to uncertainties inherent to modeling, still has to be performed on-line. (C) 2009 Elsevier B.V. All rights reserved.
T2  - Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment
T1  - Controlling FAMA by the Ptolemy II model of ion beam transport
VL  - 607
IS  - 2
SP  - 322
EP  - 333
DO  - 10.1016/j.nima.2009.05.181
ER  - 

@article{
author = "Balvanović, Roman V. and Radenovic, B. and Beličev, Petar and Nešković, Nebojša B.",
year = "2009",
abstract = "FAMA is a facility for modification and analysis of materials with ion beams. Due to the wide range of ion beams and energies used in the facility and its future expansion, the need has arisen for faster tuning of ion beams transport control parameters. With this aim, a new approach to modeling ion-beam transport system was developed, based on the Ptolemy II modeling and design framework. A model in Ptolemy II is a hierarchical aggregation of components called actors, which communicate with other actors using tokens, or pieces of data. Each ion optical element is modeled by a composite actor implementing beam matrix transformation function, while tokens carry beam matrix data. A basic library of models of typical ion optical elements is developed, and a complex model of FAMA ion beam transport system is hierarchically integrated with bottom-up approach. The model is extended to include control functions. The developed model is modular, flexible and extensible. The results obtained by simulation on the model demonstrate easy and efficient tuning of beam line control parameters. Fine tuning of control parameters, due to uncertainties inherent to modeling, still has to be performed on-line. (C) 2009 Elsevier B.V. All rights reserved.",
journal = "Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment",
title = "Controlling FAMA by the Ptolemy II model of ion beam transport",
volume = "607",
number = "2",
pages = "322-333",
doi = "10.1016/j.nima.2009.05.181"
}

Balvanović, R. V., Radenovic, B., Beličev, P.,& Nešković, N. B.. (2009). Controlling FAMA by the Ptolemy II model of ion beam transport. in Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 607(2), 322-333.
https://doi.org/10.1016/j.nima.2009.05.181

Balvanović RV, Radenovic B, Beličev P, Nešković NB. Controlling FAMA by the Ptolemy II model of ion beam transport. in Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment. 2009;607(2):322-333.
doi:10.1016/j.nima.2009.05.181 .

Balvanović, Roman V., Radenovic, B., Beličev, Petar, Nešković, Nebojša B., "Controlling FAMA by the Ptolemy II model of ion beam transport" in Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 607, no. 2 (2009):322-333,
https://doi.org/10.1016/j.nima.2009.05.181 . .