Paper | Title | Page |
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MOB02 | Progress With a New Radioisotope Production Facility and Construction of Radioactive Beam Facility at iThemba LABS | 17 |
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With the termination of the neutron and proton therapy programs at iThemba LABS, the use of the Separated Sector Cyclotron (SSC) has now shifted to nuclear physics research with both stable and radioactive ion beams, as well as biomedical research. A dedicated isotope production facility with a commercial 70 MeV H-minus cyclotron has been approved and both the cyclotron and isotope production target stations will be housed in the vaults that were previously used for the therapy programs. The status of this new facility will be reported. In the future the SSC will mostly be used for nuclear physics research, as well as the production of isotopes that cannot be produced with the 70 MeV H-minus cyclotron. At present the production of the alpha-emitting radionuclide Astatine (211At) with a 28 MeV alpha beam is being investigated. Progress with the construction of a facility for production of radioactive beams will be discussed. There will also be reports on development work on the ECR ion sources and progress with implementation of an EPICS control system. | ||
Slides MOB02 [10.580 MB] | ||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-MOB02 | |
About • | paper received ※ 13 August 2019 paper accepted ※ 24 September 2019 issue date ※ 20 June 2020 | |
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MOB03 |
GFS-2 - The New Gas-filled Separator for Super-Heavy Elements in JINR. A Guided Walk through the Genesis of the Project from First Thoughts to Completion | |
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The brand-new Superheavy Element Factory at the Flerov Laboratory of Nuclear Reactions (FLNR) in JINR, Dubna, is under completion, with the high-current DC-280 cyclotron fully installed and tested having Argon beams available for first tests. To improve the efficiency of studies on heavy and superheavy nuclei, it will deliver a wide range of species with high intensity, which in turn require effective separators providing high suppression of unwanted reaction products. The first experiment fed by the cyclotron, GFS-2, is a universal gas-filled separator for synthesis and study of the properties of heavy isotopes, based on the QvDhQvQhD scheme. The presentation describes its study and design in close collaboration between FLNR and Sigmaphi, starting from the initial demand in 2015 and going through the different steps, up to its construction in 2017 and installation in 2018. A second system, GFS-3 is ready to be installed by the end of 2019. | ||
Slides MOB03 [27.620 MB] | ||
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TUA01 |
Radioisotopes Production in Accelerators & Cyclotrons Use | |
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The production of important medical radioisotopes mainly started with particle accelerators but, shortly after, some of them where totally forgotten due to the availability of nuclear reactors. SPECT isotopes where available in limited quantities with the first high energy positive ions machine; around 1985, the evolution of particle accelerator and the discovery of powerful negative ions cyclotron led to the creation of new companies. In the 1990’s, new compact and automated cyclotrons were instrumental in the development of PET radioisotopes (mainly 18F). Target design followed the beam power increase of such medium energy cyclotron as well as the need for new radioisotope with solid target. Recently, some companies are proposing very small cyclotrons for ’on the spot’ production at the point of use. There was revival of studies of Tc99m production with cyclotrons while some industrial players are looking at electron accelerators to produce the mother isotope Mo-99.The future seems bright for medical radioisotopes production with the replacement of old multi-particle or high energy accelerators by modern cyclotrons; there are new worldwide network of 30 & 70 MeV. | ||
Slides TUA01 [11.463 MB] | ||
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TUA02 | Novel Irradiation Methods for Theranostic Radioisotope Production With Solid Targets at the Bern Medical Cyclotron | 127 |
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The production of medical radioisotopes for theranostics is essential for the development of personalized nuclear medicine. Among them, radiometals can be used to label proteins and peptides and their supply in quantity and quality for clinical applications represents a challenge. A research program is ongoing at the Bern medical cyclotron, where a solid target station with a pneumatic delivery system is in operation. To bombard isotope-enriched materials in form of compressed powders, a specific target coin was realized. To assess the activity at EoB, a system based on a CZT detector was developed. For an optimized production yield with the required radio nuclide purity, precise knowledge of the cross-sections and of the beam energy is crucial. Specific methods were developed to assess these quantities. To further enhance the capabilities of solid target stations at medical cyclotrons, a novel irradiation system based on an ultra-compact ~50 cm long beam line and a two-dimensional beam monitoring detector is under development to bombard targets down to few mg and few mm diameter. The first results on the production of Ga-68, Cu-64, Sc-43, Sc-44 and Sc-47 are presented. | ||
Slides TUA02 [37.771 MB] | ||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-TUA02 | |
About • | paper received ※ 13 September 2019 paper accepted ※ 25 September 2019 issue date ※ 20 June 2020 | |
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TUA03 | The Use of PSI’s IP2 Beam Line Towards Exotic Radionuclide Development and its Application Towards Proof-Of-Principle Preclinical and Clinical Studies | 132 |
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Paul Scherrer Institute runs a High Intensity Proton Accelerator (HIPA) facility, where a maximum of 100 µA protons is gleaned from high intensity 72 MeV protons from Injector 2, a separated sector cyclotron, into the IP2 target station. These protons irradiate various targets towards the production of exotic radionuclides intended for medical purposes. Many radiometals in use today are for the diagnosis of disease, with the most popular means of detection being Positron Emission Tomography. These positron emitters are easily produced at low proton energies using medical cyclotrons, however, development at these facilities are lacking. The 72 MeV proton beam is degraded at IP2 using niobium to provide the desired energy to irradiate targets to produce the likes of 44Sc, 43Sc, 64Cu and 165Er*,**,***. Once developed, these proofs-of-principle are then put into practice at partner facilities. Target holders and degraders require development to optimize irradiation conditions and target cooling. Various options are explored, with pros and cons taken into consideration based on calculations and simulations.
* v/d Meulen et al., Nucl Med. Biol. (2015) 42: 745 ** Domnanich et al., EJNMMI Radiopharm. Chemistry (2017) 2: 14 *** v/d Meulen et al., J Label Compd Radiopharm (2019) doi: 10.1002/jlcr.3730 |
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Slides TUA03 [7.449 MB] | ||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-TUA03 | |
About • | paper received ※ 13 September 2019 paper accepted ※ 26 September 2019 issue date ※ 20 June 2020 | |
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TUA04 | Characterization of Neutron Leakage Field Coming from 18O(p, n)18F Reaction in PET Production Cyclotron | 136 |
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This paper shows a new method for characterization of the secondary neutron field quantities, specifically neutron spectrum leaking from 18O enriched H2O XL cylindrical target in IBA Cyclone 18/9 in the energy range of 1-15 MeV. Spectrum is measured by stilbene scintillation detector in different places. The neutron spectra are evaluated from the measured proton recoil spectra using deconvolution through maximum likelihood estimation. A leakage neutron field is an interesting option for irradiation experiments due to quite high flux, but also to the validation of high energy threshold reactions due to relatively high average energy. Measured neutron spectra are compared with calculations in MCNP6 model using TENDL-2017, FENDL-3, and default MCNP6 model calculations. TENDL-2017 and FENDL-3 libraries results differ significantly in the shape of the neutron spectrum for energies above 10 MeV while MCNP6 gives incorrect angular distributions. Activation measurements of different neutron induced reactions support characterization. The 18F production yield is in a good agreement with TENDL-2017 proton library calculation within respective uncertainties. | ||
Slides TUA04 [2.286 MB] | ||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-TUA04 | |
About • | paper received ※ 05 September 2019 paper accepted ※ 25 September 2019 issue date ※ 20 June 2020 | |
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TUA05 |
Vanadium-48 Production Yield Investigation Using TiO2 Nano Powder Targets | |
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Vanadium-48 (t1/2=15.98d) has been considered as a cyclotron radiopharmaceutical for PET applications. In this research, Vanadium-48 has been produced through the proton bombardment of the natural TiO2 Nano-powder (50 nm, 99.9%) target via natTi(p, xn)48V reaction using a 30 MeV cyclotron by developing an aluminium disc targetry. The titanium target was irradiated by 10 µA current with 16 MeV proton beam energy. Obtained activity of 48V was compared with calculated theoretical activity for the thick targets. Moreover, 48V production yields were investigated to evaluate of Nano-size materials effects on the yield of production. Resulted data show good agreement between experimental and calculated values, and also Nano-size materials effects as well. | ||
Slides TUA05 [4.678 MB] | ||
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TUB03 | MRI-Guided-PT: Integrating an MRI in a Proton Therapy System | 144 |
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Integration of magnetic resonance imaging (MRI) in proton therapy (PT) has the potential to improve tumor-targeting precision. However, it is technically challenging to integrate an MRI scanner at the beam isocenter of a PT system due to space constraints and electromagnetic interactions between the two systems. We assessed the technical risks and challenges, and present a concept for the mechanical integration of a 0.5T MRI scanner (ASG MR-Open) into a PT gantry (IBA ProteusONE). Finite element simulations assess the perturbation of the gantry’s elements on the homogeneity of the scanner’s static magnetic field. MC simulations estimate the effect of the scanner’s magnetic field on the proton dose deposition. To test the technical feasibility, a first experimental setup was realized at the PT center in Dresden, combining a 0.22T open MRI scanner with a static proton beam line. Results show that the image quality is not degraded by proton beam irradiation if the acquisition is synchronized with beam line operation. The beam energy dependent proton beam deflection due to the scanner’s magnetic field is significant and needs to be corrected for in treatment planning and dose delivery. | ||
Slides TUB03 [1.866 MB] | ||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-TUB03 | |
About • | paper received ※ 14 September 2019 paper accepted ※ 26 September 2019 issue date ※ 20 June 2020 | |
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TUB04 | On-Line Dynamic Beam Intensity Control in a Proton Therapy Cyclotron | 148 |
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Modern proton therapy facilities use the pencil beam scanning (PBS) technique for the treatment of tumours: the beam is scanned through the tumour volume sequentially, i.e. stopping the beam at each position in the tumour for the amount of time necessary to deliver the prescribed dose for that position, and then moving to the next position (dose-driven delivery). This technique is robust against fluctuations in the beam current. Modern cyclotrons however offer very stable beam currents, and allow regulating the beam intensity online to match the requested beam intensity profile as a function of time (’time-driven’ delivery). To realise time-driven delivery at the COMET cyclotron at PSI*, we have designed a beam intensity controller** which is able to partially compensate for the non-linearity and the delay introduced by the physical limitations of the beam line elements and its drivers; this is particularly important when trying to achieve a very fast modulation of the beam, as required by the clinical plans. Experimental results have shown good performance for most current clinical scenarios, though we are investigating more advanced solutions for higher dose rates scenarios.
(*) Klimpki, G., et al. (2018). PMB, 63(14), 145006 (**) Fernandez Carmona, P., et al., (2018) Proceedings of PCaPAC2018, FRCC2 |
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Slides TUB04 [10.992 MB] | ||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-TUB04 | |
About • | paper received ※ 14 September 2019 paper accepted ※ 26 September 2019 issue date ※ 20 June 2020 | |
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TUP019 | Recent Extensions of JULIC for HBS Investigations | 195 |
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At the Forschungszentrum Jülich (FZJ) the energy variable cyclotron JULIC is used as injector of the Cooler Synchrotron (COSY) and for low to medium current irradiations of different types. Recently a new target station was set up and is mainly used for tests of new target materials, neutron target development and neutron yield investigations with high power proton or deuteron beam in perspective of a high brilliance accelerator based neutron source (HBS) with the Jülich Center for Neutron Science. The neutrons are produced exposing material targets or compounds to proton or deuterium particles of relative low final particle energy in the MeV range and will be optimized for neutron scattering to be realized at reasonable costs. Beside this, ToF-experiments are performed to investigate and optimize the pulsing structure for HBS. The target station is installed inside an experimental area offering space for complex detector and component setups for nuclear and neutron related experiments. But it is used for other purposes like electronic or detector tests and irradiation as well. This report briefly summarizes the history of JULIC and the activities for its future perspectives. | ||
Poster TUP019 [1.562 MB] | ||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-TUP019 | |
About • | paper received ※ 15 September 2019 paper accepted ※ 25 September 2019 issue date ※ 20 June 2020 | |
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TUP020 | Beam Properties at the Experimental Target Station of the Proton Therapy in Berlin | 199 |
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Beside the Therapy station for ocular tumors we have an experimental area to deliver protons and other ions. At this place there is also the possibility to do High Energy Pixe measurements on samples from cultural heritage. The positioning of the samples under test is possible by means of an xy-table with an range of 500x500 mm2 and a load of at least 50 kg, reproducibility ±0.1 mm. We can change the beam size between 1 mm diameter as focused beam and up to 50 mm diameter with different scattering foils and homogeneous dose spread. We can deliver beam intensities from single protons up to 1012 protons/cm2 * sec The energy can be set to 68 MeV with a single Bragg peak, spread out Bragg peaks with a mechanical range shifter or absorber plates to reduce the energy. The timing properties range from quasi DC to a single pulse width of 1 ns with a repetition rate up to 2.4 MHz. Instead of a scattering foil to increase the beam spots we also can use beam scanning with the focused beam to reduce the beam losses. We will show the different beam properties at the experimental target area for radiation hardness testing of solar cells, optical elements and electronics under test. | ||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-TUP020 | |
About • | paper received ※ 14 September 2019 paper accepted ※ 25 September 2019 issue date ※ 20 June 2020 | |
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TUP021 | Towards FLASH Proton Irradiation at HZB | 202 |
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The HZB cyclotron has been providing protons for eye-tumor treatment for more than 20 years. While it has been very successful using conventional dose rates (15-20 Gy/min), recent studies indicate that rapid irradiation with very high dose rates (FLASH) might be equally efficient against tumors but less harmful to healthy tissues. The flexible operation schemes of the HZB cyclotron can provide beams with variable intensities and time structures, covering a wide unexplored regime within the FLASH requirements (>40 Gy/s in <500 ms). This paper presents the results of the first FLASH beam production at HZB towards the establishment of an in-vivo clinical irradiation in the future. | ||
Poster TUP021 [1.031 MB] | ||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-TUP021 | |
About • | paper received ※ 12 September 2019 paper accepted ※ 25 September 2019 issue date ※ 20 June 2020 | |
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TUP022 | Status of a 70 MeV Cyclotron System for ISOL Driver of Rare Isotope Science Project in Korea | 205 |
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A 70 MeV H− cyclotron commercially available for medical isotope production will be used as an ISOL driver for rare isotope science project in Korea. The cyclotron is scheduled to be installed in 2021 for beam commissioning in the following year. In fact the building to house the cyclotron is currently almost complete so that the cyclotron system newly contracted needs to fit into the existing building, which brings some challenges in equipment installation and adaptation to utilities. Two beam lines to transport high-current proton beams into ISOL targets have been designed and are described along with other issues associated with the interface of the ISOL system. | ||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-TUP022 | |
About • | paper received ※ 12 September 2019 paper accepted ※ 25 September 2019 issue date ※ 20 June 2020 | |
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TUP024 | Muon Cyclotron for Transmission Muon Microscope | 208 |
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Funding: This work is supported by JSPS KAKENHI Grant Numbers JP17H06126 and JP19H05194. A transmission muon microscope is an unprecedented tool which enables its users to reconstruct 3D image of samples such as a living cell. Muons can gain penetrative power as their energy increase, though electrons above 1 MeV start to trigger electromagnetic showers and protons above 1 GeV cause nuclear reactions. Muons accelerated up to about 5 MeV are able to penetrate a living cell (~ 10 um), which is impossible with ultra-high voltage (1 MeV) electron microscopes. In order to accelerate muons, efficient acceleration is necessary because the lifetime of muons is only 2.2 us. In addition, it is important to accelerate muons without increasing their energy dispersion. A cyclotron with a flat-top acceleration system is the best suited for the transmission muon microscope and is being developed at the J-PARC muon facility (MUSE). In this poster, the transmission muon microscope project and the development of the muon cyclotron will be presented. |
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Poster TUP024 [1.366 MB] | ||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-TUP024 | |
About • | paper received ※ 14 September 2019 paper accepted ※ 25 September 2019 issue date ※ 20 June 2020 | |
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TUP025 | Feasibility Study for Converting the CS-30 Into a Variable Energy Cyclotron for Isotopes Production Using the Internal Target System | 212 |
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Funding: This project was supported by the NSTIP Strategic Technologies Program in the Kingdom of Saudi Arabia, award no. 14-MAT-1233-20. This paper reports a method to reduce the beam energy of the CS-30 cyclotron from 26.5 up to 10 MeV using the internal target system in CS-30 cyclotrons for isotopes production. Irradiation of solid targets, in this type of cyclotrons, take place when the target is positioned horizontally inside the cyclotron tank. In its final position, the target plate interrupts the beam from completing its orbit and nuclear reactions take place. Calculations are made to determine the beam energy as a function of radius. Verification of the new method was achieved by producing pure Ga-68 at an energy level of 11.5 MeV. [1] Gordon, M. M., Calculation of isochronous fields for sector-focused cyclotrons, Part. Accel., 13 (1983) 67-84 [2] Smith, Lloyd, ORBIT DYNAMICS IN THE SPIRAL-RIDGED CYCLOTRON, (2010) [3] Kleeven, W. J. G. M., Theory of accelerated orbits and space charge effects in an AVF cyclotron Eindhoven: Technische Universiteit Eindhoven, (1988)DOI: 10.6100/IR288492 |
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DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-TUP025 | |
About • | paper received ※ 13 September 2019 paper accepted ※ 25 September 2019 issue date ※ 20 June 2020 | |
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TUP026 | Embedded Local Controller for the CS-30 Cyclotron | 215 |
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Funding: This project was supported by the NSTIP Strategic Technologies Program in the Kingdom of Saudi Arabia, award no. 14-MAT-1233-20. The Embedded Local Controller is used for the purpose of upgrading our old CS-30 cyclotron control system. It is installed inside the cyclotron vault and connected to the control room using CAN serial bus. This is to avoid adding more wires from cyclotron vault to the outside, because there is no room for extra wires in the feedthrough conduits. The system is carefully designed to be fault tolerant so that it can run in a radiation environment without failure. Details of the design and field test results are presented. |
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DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-TUP026 | |
About • | paper received ※ 15 September 2019 paper accepted ※ 25 September 2019 issue date ※ 20 June 2020 | |
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TUP028 | Bremsstrahlung Photons Emission in 28-GHz Electron Cyclotron Resonance Plasma | 219 |
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Radial measurements of bremsstrahlung photons show high-energy intensity beyond a critical energy from electron cyclotron resonance (ECR) heating and its nature is not well understood so far. For the first time we have measured the bremsstrahlung photons energy intensity from 28-GHz ECR ion source at Busan Center of KBSI. Three round type NaI(Tl) detectors were used to measure the bremsstrahlung photons emitted at the center of the ECRIS at the same timeThe ECR ion source was operated at Radiofrequency (RF) power of 1 kW to extract 16O beam with a dominant fraction of O3+.We studied possible systematic uncertainties from different characteristics among the three NaI(Tl) detectors by repeating measurements alternatively. Geant4 simulation was performed to take the geometrical acceptance and energy-dependent detection efficiency into account due to large non-uniformity in the material budget. We extracted true bremsstrahlung energy spectra from the 28-GHz ECR ion source using the inverse-matrix unfolding method. The high energy intensities of the bremsstrahlung photons at the center of the ECRIS were explained by the internal structure and shape of ECR plasma. | ||
Poster TUP028 [1.240 MB] | ||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-TUP028 | |
About • | paper received ※ 13 September 2019 paper accepted ※ 25 September 2019 issue date ※ 20 June 2020 | |
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TUP029 | A 15-Mev/nucleon Iso-Cyclotron for Security and Radioisotope Production | 223 |
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Funding: Work supported by US Dept of Energy under a Small Business Innovation Research Grant Cargo inspection systems exploit the broad bremsstrahlung spectrum from a 6-10 MeV, low-duty cycle electron accelerator which in the presence of significant backgrounds presents challenges in image and material identification. An alternative approach is to use ions which can excite nuclear states either directly, or through generation of secondary high-energy signature gammas produced from nuclear interactions in a target. RadiaBeam is designing a compact sector isocyclotron 1.25 m in radius, with high-gradient cavities to accelerate multi-ion species up to 15-20 MeV/u with large turn-to turn, centimeter-level separation for low-loss extraction without lossy foil stripping. A strong-focusing radial field profile will be optimized in a separated-sector format for control over machine tune simultaneous with isochronous orbist requirements for high-current (~0.5 milliamp) operation. Innovation in injection will be introduced to replace the high-loss central region. Non-security applications of the cyclotron include medical isotope production, ion radiobiology, as well as material science research and ion instrumentation development. |
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DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-TUP029 | |
About • | paper received ※ 19 September 2019 paper accepted ※ 25 September 2019 issue date ※ 20 June 2020 | |
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TUP030 | Reinforcement Learning Based RF Control System for Accelerator Mass Spectrometry | 227 |
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Funding: Radiation Technology R&D program through the National Research Foundation of Korea funded by the Ministry of Science, ICT & Future Planning through the National Research Foundation of Korea Accelerator Mass Spectrometry (AMS) is a powerful method for separating rare isotopes and electrostatic type tandem accelerators have been widely used. At SungKyunKwan University, we are developing a AMS that can be used in a small space with higher resolution based on cyclotron. In contrast to the cyclotron used in conventional PET or proton therapy, the cyclotron-based AMS is characterized by high turn number and low dee voltage for high resolution. It is designed to accelerate not only 14C but also 13C or 12C. The AMS cyclotron RF control model has nonlinear characteristics due to the variable beam loading effect due to the acceleration of various particles and injected sample amounts. In this work, we proposed an AMS control system based on reinforcement learning. The proposed reinforcement learning finds the target control value in response to the environment through the learning process. We have designed a reinforcement learning based controller with RF system as an environment and verified the reinforcement learning based controller designed through the modeled cavity. |
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Poster TUP030 [0.527 MB] | ||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-TUP030 | |
About • | paper received ※ 14 September 2019 paper accepted ※ 25 September 2019 issue date ※ 20 June 2020 | |
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THB01 | Review of High Power Cyclotrons and Their Applications | 289 |
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An incomplete review of existing machines and of present new projects of high power cyclotrons is here presented. Both high energy and low/medium energy cyclotrons will be described. Specific requests for different fields of applications are also discussed. | ||
Slides THB01 [11.837 MB] | ||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-THB01 | |
About • | paper received ※ 15 September 2019 paper accepted ※ 25 September 2019 issue date ※ 20 June 2020 | |
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THB02 | Production of 70 MeV Proton Beam in a Superconducting Cyclotron | 294 |
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Production of 70 MeV proton beams with help of a cyclotron-type facility is one of highly requested tasks presently. Such beams are used for medical applications including direct tumor irradiation and also for production of medical isotopes. The applications mentioned above dictate corresponding requirements imposed on the beam quality and intensity. For proton therapy treatment it is sufficient to have 300-600 nA output beam current with rather strict tolerance on the transverse beam quality. On the other hand, for the isotope production the major requirement is high enough beam intensity (hundreds µA) with less demanding beam quality. Nowadays, for production of the proton beams in the energy range considered cyclotrons with resistive coil weighting ~200 tons are mostly used. In these cyclotrons two extraction methods - with electrostatic deflector and with stripping foils - can provide somewhat different quality of the output beam. In given report a possibility of using a superconducting cyclotron instead of room-temperature one is considered. To this end, acceleration of various ions was investigated with analysis of the main facility parameters and resulting output beams. | ||
Slides THB02 [2.733 MB] | ||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-THB02 | |
About • | paper received ※ 06 September 2019 paper accepted ※ 25 September 2019 issue date ※ 20 June 2020 | |
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FRA04 | Cyclotrons Based Facilities for Single Event Effects Testing of Spacecraft Electronics | 348 |
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Space radiation is the main factor limiting the operation time of the onboard equipment of the spacecraft due to the radiation effects occurring in the electronic components. With a decrease in the size of semiconductor structures, the sensitivity to the effects of individual nuclear particles increases and hitting one such particle can cause an upset or even failure of a component or system as a whole. Since the phenomenon occurs due to the impact of a separate particle, these radiation effects are called Single Event Effects (SEE). To be sure that the electronic component is operational in space, ground tests are necessary. SEE tests are carried out on test facilities that allow accelerating heavy ions from C to Bi to energies from 3 to a few dozen MeV/A. Cyclotrons are best suited for this purpose. In this paper, the installations created by request of ISDE based on the cyclotrons of FLNR JINR are described. | ||
Slides FRA04 [0.849 MB] | ||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-FRA04 | |
About • | paper received ※ 17 September 2019 paper accepted ※ 27 September 2019 issue date ※ 20 June 2020 | |
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FRB02 | FLNR JINR Accelerator Complex for Applied Physics Researches: State-of-Art and Future | 358 |
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The main activities of FLNR, following its name – are related to fundamental science, but, in parallel, plenty of efforts are paid for practical applications. Certain amount of beam time every year is spent for applied science experiments on FLNR accelerator complex. The main 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. Status of all these activities, its modern trends and needs will be reported. Basing on FLNR long term experience in these fields and aiming to improve the instrumentation for users, FLNR accelerator department announce the design study for a new cyclotron, DC140, which will be dedicated machine for applied researches in FLNR. Following the users requirements DC140 should accelerate the heavy ions with mass-to-charge ratio A/Z of the range from 5 to 8 up to fixed energies 2 and 4.8 MeV per unit mass. The first outlook of DC140 parameters, its features, layout of its casemate and general overview of the new FLNR facility for applied science will be presented. | ||
Slides FRB02 [7.680 MB] | ||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-Cyclotrons2019-FRB02 | |
About • | paper received ※ 15 September 2019 paper accepted ※ 25 September 2019 issue date ※ 20 June 2020 | |
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