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MOPSA28 |
DC140 Project: New Dedicated Facility for Applied Science at FLNR Accelerator Complex | |
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| The main activities of Flerov Laboratory of Nuclear Reactions, following its name - are related to fundamental science, but, in parallel, plenty of efforts are paid for practical applications. In 2021, the main its directions are: the production of the heterogeneousμ- and nano-structured materials; testing of electronic components (avionics and space electronics) for radiation hardness; ion-implantation nanotechnology and radiation materials science. Basing on FLNR long term experience in these fields and aiming to improve the instrumentation, the Flerov laboratory of nuclear reactions starts the new project - the dedicated facility for applied science on the basis of the new heavy ion cyclotron DC-140. Following the user¿s requirements, DC140 will be the multi-particle, double - energy machine, capable with light and heavy ions up to bismuth (2.1 and 4.8 MeV/u). The "ion cocktail" mode will be one of the significant parameters of the new cyclotron. The last year’s efforts in the field of cyclotron practical applications in FLNR and general overview of the DC 140 project - the new FLNR facility for applied science, will be presented. | ||
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| MOPSA50 | Axial Injection System of DC140 Cyclotron of FLNR JINR | 209 |
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| Flerov Laboratory of Nuclear Reaction of Joint Institute for Nuclear Research continues the works under creating of FLNR JINR Irradiation Facility based on the cyclotron DC140. The facility will have three experimental beam lines for SEE testing of microchips, for production of track membranes and for solving of applied physics problems. The injection into cyclotron will be realized from the external room temperature 18 GHz ECR ion source. The systems of DC140 cyclotron such as axial injection, main magnet, RF- and extraction systems and beam lines are the reconstruction of the DC72 cyclotron ones. The acceleration in DC140 cyclotron is carried out for two values of harmonic number h = 2,3 of heavy ions with mass-to-charge ratio A/Z within two intervals 5 - 5.5 and 7.5 - 8.25 up to two fixed energies 2.124 and 4.8 MeV per unit mass, correspondingly. The intensity of the accelerated ions will be about 1 pmcA for light ions (A<86) and about 0.1 pmcA for heavier ions (A>132). The design of the axial injection system of the DC140 cyclotron is presented in this report. | ||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-MOPSA50 | |
| About • | Received ※ 27 August 2021 — Revised ※ 07 September 2021 — Accepted ※ 10 September 2021 — Issued ※ 23 October 2021 | |
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| MOPSA51 | The Extraction System of DC140 Cyclotron | 213 |
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| The main activities of Flerov Laboratory of Nuclear Reactions, following its name - are related to fundamental science, but, in parallel, plenty of efforts are paid for practical applications. For the moment continues the works under creating irradiation facility based on the cyclotron DC140 which will be dedicated machine for applied researches in FLNR. The beam transport system will have three experimental beam lines for testing of electronic components (avionics and space electronics) for radiation hardness, for ion-implantation nanotechnology and for radiation materials science. The DC140 cyclotron is intended for acceleration of heavy ions with mass-to-charge ratio A/Z within interval from 5 to 8.25 up to two fixed energies 2.124 and 4.8 MeV per unit mass. The intensity of the accelerated ions will be about 1 pmcA for light ions (A<86) and about 0.1 pmcA for heavier ions (A>132). The following elements are used to extract the beam from the cyclotron: electrostatic deflector, focusing magnetic channel, Permanent Magnet Quadrupole lens and steering magnet. The design of the beam extraction system of DC140 cyclotron are presented in this report. | ||
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Poster MOPSA51 [0.886 MB] | |
| DOI • | reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-MOPSA51 | |
| About • | Received ※ 30 August 2021 — Accepted ※ 20 September 2021 — Issued ※ 24 October 2021 | |
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| FRA03 | Simulation and Design of the Permanent Magnet Multipole for DC140 | 99 |
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| Permanent magnet (PM) multipoles in some cases are good candidates in accelerator applications for beam transportation and focusing. The PM quadrupole will be utilized in the DC140 cyclotron which is under construction in JINR. A passive magnetic channel and a PM quad will be used for the compensation of horizontal defocusing in the high and low field regions, respectively. The quad is designed as a set of identical PMs rigidly fixed in a non-magnetic housing and capable to generate a a 8.1 T/m gradient field in the 64x25 mm aperture and 29.926 cm effective length. The error of linear approximation should be 1% or less. A special study was accomplished to define the PM specification reasoning from the demand for desired field strength, simple geometry, minimized nomenclature, and commercial availability. The quad design was selected with the use a 2D analytical model and then optimized in iterative 3D FE simulations with realistic PM shape and magnetic characteristics in mind. The resultant concept is the quad formed with 6 coaxial sections each 5cm in width. Every section has 26 identical PM bricks with the dimensions 11mmx11mmx50mm and different orientations. The PM bricks have remanent induction of 1.185 T and magnetic susceptibility of 0.1. Temperature characteristics and expected lifetime were also analysed. From the results obtained, candidate PM materials were proposed and mechanical and magnetic precision were recommended. | ||
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Slides FRA03 [1.465 MB] | |
| DOI • | reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-FRA03 | |
| About • | Received ※ 09 September 2021 — Accepted ※ 29 September 2021 — Issued ※ 12 October 2021 | |
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