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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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| TUPSB35 | 3D Simulation Study and Optimization of Magnetic System of DECRIS Ion Source with the Pumping Frequency 28 GHz | 300 |
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| A superconducting magnet system for a 28 GHz ECR ion source DECRIS-SC2 was studied in order to select its parameters and optimize performance. Parametric magnetic models were performed for two design configurations, conventional ("sextupole-in-solenoid") and reversed ("solenoid-in-sextupole"). In the "sextupole-in-solenoid" design the racetrack coils of the sextupole magnet used for radial plasma confinement are located inside the solenoids producing the axial field. In the "solenoid-in-sextupole" design the coils arrangement is reversed. For both configurations, electromagnetic effect the booster and the steel poles on the magnet performance was investigated from the point of view critical parameters of the system ¿ currents, fields, and forces. Results of the parametric computations were used to optimize the geometry and sizes of the magnet as well as the magnetic shield, the booster, and the poles. For better reliability and validation of the result, computations were performed with two magnetostatic codes, KOMPOT and KLONDIKE, utilizing the differential and integral formulations, respectively. A comparison of the obtained parameters was used to select the candidate magnet configuration for further design and manufacture. | ||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-TUPSB35 | |
| About • | Received ※ 28 September 2021 — Revised ※ 29 September 2021 — Accepted ※ 04 October 2021 — Issued ※ 18 October 2021 | |
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| TUPSB36 | High Intensity Calcium, Chromium and Titanium Ion Beams from the Permanent Magnet ECR Ion Source DECRIS-PM | 303 |
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| The first experiment at the Super Heavy Elements Factory (SHE) was launched at the end of 2020. The result of the experiment with a calcium ion beam and an Americium target is more than 100 events of the synthesis of Moscovium. The last two years have shown good capabilities of the Factory. These results allow us to start preparing for the synthesis of SHE with atomic number >118. For this experiment, we have to use heavier ion beams, such as titanium and chromium. The article describes the method, technique, and last experimental results on the production of metal ion beams such as 48Ca, 48Ti, 52Cr, and 54Cr ion beams at the DC-280 cyclotron from the DECRIS-PM ion source. | ||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-TUPSB36 | |
| About • | Received ※ 13 September 2021 — Revised ※ 25 September 2021 — Accepted ※ 29 September 2021 — Issued ※ 05 October 2021 | |
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| TUPSB37 | Modernization of the ECR Ion Source DECRIS-2M. Results of the First Tests. | 307 |
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| The article describes the design of the modernized ECR ion source DECRIS-2M. The upgrade consists in increasing the magnetic field to improve plasma confinement and improve the source parameters. The modernization also made it possible to increase the inner diameter of the plasma chamber and replace the coaxial microwave power input by a waveguide. Redesigned injection chamber significantly expands the possibilities of production ions of solids using different methods. The article also presents the first results of experiments production of Ar, Xe and Bi ion beams from a modernized ion source. The results demonstrate substantial increase of the ion beams intensity. | ||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-TUPSB37 | |
| About • | Received ※ 06 September 2021 — Revised ※ 21 September 2021 — Accepted ※ 23 September 2021 — Issued ※ 18 October 2021 | |
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| FRA01 | Peculiarities of Producing 48Ca, 48Ti, 52Cr Beams at the DC-280 Cyclotron | 93 |
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| The first beam of 84Kr14+ ions was accelerated in the DC-280 on December 26, 2018 and extracted to the ion transport channel on January 17, 2019. In March 2019, beams of accelerated 84Kr+14 ions with intensity of 1.36 pmkA and 12C+2 ions with and intensity of 10 pmkA were extracted from the DC-280 to the beam transport channel with energy about 5.8 MeV/nucleon. In 2020-2021 years, beams of 48Ca7+,10+ ions with intensity up to 10,6 pmkA were accelerated and 7,1 pmkA were extracted from the DC-280 to the beam transport channel with energy about 4,51 - 5,29 MeV/nucleon. In 2021 year, beams of accelerated 52,54Cr10+ ions with intensity up to 2,5 pmkA were extracted from the DC-280 to the beam transport channel with energy about 5,05 MeV/nucleon and beams of 48Ti7+ with intensity up to 1pmkA and with energy about 4,94 MeV/nucleon The main task of the new accelerator is implementation of the long-term program of researches on the SHE Factory aimed on synthesis of new elements (Z>118) and detailed studying of nuclear- physical and chemical properties of earlier opened 112-118 ones. | ||
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Slides FRA01 [9.228 MB] | |
| DOI • | reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-FRA01 | |
| About • | Received ※ 18 September 2021 — Revised ※ 25 September 2021 — Accepted ※ 09 October 2021 — Issued ※ 16 October 2021 | |
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