There are some needs of proton beam of several MeV in energy for the purpose of calibrating charged particle detectors. For that purpose, electrostatic accelerators are usually appropriated, but recently many electrostatic accelerator facilities have been shut down. On the other hand, cyclotrons are too large to use for such calibration. So, a proton generating system which consists of 18 GHz...
The Heavy Elements Laser Ionization and Spectroscopy (HELIOS) project at KU Leuven has the goal of performing In-Gas Laser Ionization and Spectroscopy (IGLIS) measurements on the actinide and superheavy (transfermium) elements. These studies will allow to deduce atomic properties, e.g. ionization potentials, electronic transition energies and strengths, isotope shifts, nuclear charge radii,...
We have been developing a compact ion accelerator system for evaluating potential health risks of radiation exposure against ion beams. In order to realize the compact ion accelerator, we adopted a dielectric wall accelerator (DWA) concept for beam acceleration. The DWA system uses photoconductive semiconductor switch (PCSS) driven high voltage transmission lines to generate pulsed electric...
The report presents experimental research results on a pulsed vacuum arc ion source with heated elemental boron cathode. Boron is a semiconductor having a high specific resistance (~1.8 MOhm×cm) under normal conditions and is difficult to sputter and to evaporate. Therefore in the known ion sources, the initiation of an arc discharge with a pure boron cathode requires preliminary heating-up of...
ISOLDE is a radioactive ion beam facility within CERN’s proton accelerator complex. Ion beams of more than 70 different elements can be produced using different ion source types available at ISOLDE. Most commonly used are the positive surface ion source, the Resonance Ionization Laser Ion Source (RILIS) and the Forced Electron Beam Induced Arc Discharge (FEBIAD) ion source. In recent years the...
Reducing the size, weight and power (SWAP) of ion accelerators is one of the driving forces in developing new accelerators for applications in research and industry. We recently demonstrated a novel multi-beamlet ion accelerator [1] formed from stacks of wafers (PC board in the first demonstrations) and fabricated using microfabrication approaches. The concept of this...
The crossed electric and magnetic fields configuration inherent to the electrostatic plasma -optical lens (PL) provides a suitable method for establishing a stable gas discharge at the low pressure. Using PL configuration in this way a number of cost-effective and high reliability plasma devices using permanent magnets were devised. These kinds of devices are part of a large class of...
In NRC «Kurchatov institute»-ITEP the research of the material radiation resistance by accelerated metal ion beams is under progress on RFQ linac Heavy Ion Prototype (HIPr). One of the ongoing material science projects aims at the analysis of the radiation resistance of tungsten that will be used in future fusion facilities like DEMO and ITER. To provide irradiation experiments, MEVVA ion...
Linac4 cesiated surface negative ion source is required to produce 50 mA of H$^-$ ions within a transverse rms emittance of 0.25π mm∙mrad [1,2]. In order to achieve the requirements, it is necessary to optimize the H$^-$ beam extraction from the Linac4 negative ion source. Recently, the extraction region of the Linac4 ion source has been modeled by three- Dimensional Particle in Cell (3D-PIC)...
The superconducting magnet for RAON 28 GHz ECR ion source has been designed. The designed magnetic field distributions for the 28 GHz ECR ion source were 3.5 T at the injection side, 2 T at the extraction side and 2 T on the inner surface of the plasma chamber, respectively. The magnets using NbTi wires were composed of the four solenoid magnets for axial magnetic field and one saddle type...
The NIO1 (Negative Ion Optimization 1) experiment hosts a flexible RF $\text{H}^-$ ion source, developed by Consorzio RFX and INFN-LNL to improve the present concepts for the production and acceleration of negative ions. The source is also used to benchmark the instrumentation dedicated to the ITER neutral beam test facility.
Many diagnostics are installed in NIO1 to characterize the source...
Several studies were performed over the recent years for better understanding and improving a relatively low proton beam transmission through the SARAF RFQ. A strong effect of the RFQ 176 MHZ RF field on the low energy beam optics was observed.The effect takes place in the Low Energy Beam Transport (LEBT) line at the vicinity of the RFQ entrance flange. The effect was measured for various LEBT...
The ion beams extracted from the LIS, ECRIS or EBIS are characterized by complicated charge state distribution of the ions. As a rule, for the aims of the specific experiment only one of the charge states is needed, so the charge state separation is a part of the beam formation. To predict the behavior of intense ion bunch with various distributions of the charge states in magnetic field of...
Carbon plasma source has been developed. The application of the carbon source is carbon material deposition. Hydrocarbon gas and hydrogen gas are generally used for the carbon material deposition. In this case, main plasma component is hydrogen and hydrocarbon. Carbon is not main component of the plasma. The carbon plasma source can provide carbon gas. In my device, carbon can be the main...
A program to develop 200 kW, 1 MHz solid state high frequency power supply is initiated in a phased manner with industry. High frequency power supply is intended for plasma formation in neutral beam source or similar applications, providing high efficiency. The present high frequency power supply is configured with multiple modules of Class-D H-Bridge inverters, magnetic combiners, tuning and...
Negative ion sources are the first stage of several types of accelerators, ranging from medical applications to materials testing and to heating systems for nuclear fusion devices. One of the most important aspects of the sources is the amount of extracted ion current, which depends on the extraction voltage and on the availability of ions inside the source plasma; this situation is described...
A new proton therapy facility with 230 MeV SC cyclotron is being built by China Institute of Atomic Energy(CIAE). An internal cold-cathode ion source is designed and tested, which will be mounted in the SC cyclotron central region. It consists of a chimney, an upper and a lower cathode fixed by the chimney. The design considerations and some testing works are presented. The magnetic field in...
We have developed a beam dump that can withstand beam energy below 20 MeV. The beam dump consists of copper, graphite and is designed to prevent primary heavy ion beam and secondary radiation particles such as neutrons, electrons, x-rays, etc., from beam generated when the beam collides with the beam dump blocks. Now a beam dump is attached to the end of diagnostic chamber of accelerators....
Jinping Underground laboratory for nuclear astrophysics (JUNA) will take advantage of the ultralow background of the deep underground, using a high intensity accelerator facility and highly sensitive detector to measure directly tiny reaction rates which in laboratories at the Earth's surface are hampered by the cosmic-ray background into detectors. The design of a 400 kV, 10 mA accelerator...
In order to study the generation and extraction of negative ions for neutral beam injection application, a prototype RF-driven negative ion source and the corresponding test bed are under construction at Institute of Plasma Physics, Chinese Academy of Sciences (ASIPP). The target of the negative ion source is extracting a negative ion beam of 350 A/m$^{2}$ for 3600 s plasma duration and 100 s...
A 45 GHz superconducting ECR ion source FECR (a Fourth generation Electron Cyclotron Resonance) is under construction at IMP. A total current of more than 20 emA is expected to be extracted from the source. Therefore, the extraction voltage is designed to be biased up to 50 kV to reduce the effect of space charge. An on-line movable four-electrode system will be adopted so that the plasma...
1 MV electrostatic accelerator is being developed in the KOrea Multipurpose Accelerator Complex (KOMAC), and has specifications of the 1 MV of maximum accelerating voltage and more than 1 mA of beam current to meet the needs from the users with a MeV range ion beam implantation. The accelerator consists of ion source, accelerating tube, beam transport system, switching magnets and target...
In order to spread neutron use in industrial field, it is important to provide a compact semi-ready-made neutron source that a company and a factory can easily introduce. Therefore we have studied a compact accelerator-driven neutron source system, which consists of a 2.45 GHz simple-mirror electron cyclotron resonance (ECR) proton source, a four-vane RFQ linac and a lithium target for...
Shallow carbon implantation by low energy carbon cluster ions can be an effective method to reduce heavy metal contamination of Si wafer for semiconductor industry. An ion source utilizing high voltage hollow cathode discharge is designed and being tested in order to examine the capability to generate carbon cluster ions. A 35.5 mm inner diameter, 40 mm long glass made ion source has a...
For industrial application, cyclotrons have been available for radioactive ion beam (RI) production and hadron cancer therapy. Industrial fields welcome the compact machine and furthermore require high current output. Downsizing cyclotrons are achieved with high magnetic field generated by superconducting coils but in case of proton, high magnetic field makes it difficult to extract an...
Bucket ion sources for neutral beam injectors [1] have been applied to industrial applications such as ion beam milling processes [2] for fabrication of micro-structures of hard disk drives, semiconductor devices, piezoelectric devices etc. Large area ion beams (maximum diameter of 580 mm) by the sources could enable high-throughput commercial processes in factories [3]. However, lifetime of...
The ion microbeams ranging from several hundred keV to several MeV have, so far, been formed by a large microbeam system with the total length of about 30 m that comprises an accelerator, a beam transport line and focusing lenses.The installation of the microbeam system in a common experimental room with a typical size of about 4 × 4 × 4m$^{3}$ is difficult. A MeV compact ion microbeam system...
A microwave ion source is a long-life ion source because of few expendable items. Therefore, it is useful for various applications in industrial and medical fields such as ion implantations of semiconductors and particle therapies. We have previously reported on development of a microwave ion source for ion implantations. The magnetic field of the microwave ion source is generated by...
Performance of ECRIS SMASHI (Superconducting Multi-application Source of Highly-charged Ions) has been steadily improved since 2015. As one approach of the improvement we investigated the ion beam transport in the LEBT (Low Energy Beam Transport) beamline. In the last commissioning experiment we found that the extracted beam loss is quite high (>50 %) in the LEBT, especially in the inlet of...
We describe the development of an ion beam irradiation system with focused beams of highly charged ions (HCI), whereby the use of HCI of noble gas creates unique features leading to applications which can complement the existing equipment market. The developed, built and commissioned facility consists of an electron beam ion source (EBIS), a downstream Wien filter for the ion mass and charge...
ECR-based ion source provide a continuous beam formation without maintenance, which is important for applications, for example, in industry and medicine.
The paper presents an ECR source under development with an intense beam of hydrogen ions with energy up to 8 keV and a current of up to 4 A, formed by a multi-aperture four-electrode ion-optical system. The hydrogen plasma is created by an...
In a broad beam ion source for industrial applications such as sputter deposition, ions produced by DC or RF electrical gas discharge, are accelerated into many beamlets by means of an electrostatic extraction system. The accelerating stage is composed of two multi aperture grids (screen grid and extraction grid). The confluence of individual beamlets results in the formation of an ion beam...
Effective transportation of negative hydrogen ions formed during charge exchange of a high-brightness proton beam with ballistic focusing in a hydrogen charge-exchange target was observed in experiment. A beam of protons with an energy of 10 keV, a current of 4.7 A, an emission current density of 470 mA/cm$^{2}$, an angular divergence of 10 mrad, and a focal length of 200 cm was formed at 1 Hz...
Zeolites have been heavily utilized for different industrial applications that include catalysis, ion exchangers, and adsorbents. Due to the stability and rigidity of the zeolite framework, it has been investigated recently as a template to hold nanoparticles in its matrix [1]. This would allow the framework to immobilize nanoparticles without the need for a polymeric stabilizer that prevents...
A high current microwave ion source (MWS) has been developed by Phoenix Nuclear Labs (PNL) to cater the high beam current requirement for various applications in semiconductor, solar and power device fields. The source consists of solenoid electromagnets surrounding a microwave resonant cavity producing a magnetic field tuned to match the electron cyclotron resonance (ECR) of 2.45 GHz...
Ion beam based processes to prepare semiconductor components open possibilities to further down size electronic appliances in future. Aluminum-nitride (AlN) has potential applications in many fields of electronics such as ultra-violet light-emitting diodes and highly thermal conductivity dielectric materials. Direct implantation of AlN molecular ions into base materials may realize a new...
Silicon carbide (SiC) crystal, which has good mechanical and electric properties, is a promising materials. Owing to its ultrahigh-hardness and chemical stability, it is difficult to fabricate structures in micro-nano meter scale by means of conventional fabrication processes. Ion beam technology, which has been successfully applied in industrial fields such as semiconductor devices, is a...
Plasma cathodes can be used as electron sources in electric propulsion applications. Unlike hollow cathodes where a low work function insert material that needs to be heated to elevated temperature is utilized for the electron emission, plasma cathodes do not need to be preheated, and could be switched on instantaneously. Recently, at Bogazici University Space Technologies Laboratory...
Boron ion beams are widely used for technologies. Firstly, it is boron doping of semiconductors, and secondly it is ion beam modification of the surface. Boron compounds have a high hardness, so such modification can significantly increase the life time of tools and machine parts. The boron rich ion beams were generated by vacuum arc ion source with two boron-containing cathodes. These are...
The paper reviews recent results of further developments and applications with several options generating pure boron plasmas for ion beam formation and surface modifications. The following methods of generation of boron plasma were used:
$\bullet$ igniting and keeping alive cathode spots in vacuum arc with pure boron cathode;
$\bullet$ self-sputtering mode of planar magnetron discharge with...
There is a desire that a carbon-ion radiotherapy facility will produce various ion species for fundamental research. Although the present Kei2-type ion sources are dedicated for the carbon-ion production, a future ion source is expected to enable : 1) carbon-ion production for medical use, 2) various ions with a charge-to-mass ratio of 1/3 for the existing linac injector, and 3) low cost for...
Linac4 H$^-$ ion source is required to deliver 50 mA of H$^-$ ions within a transverse rms emittance of 0.25π mm∙mrad[1, 2]. In order to meet these requirements, it is indispensable to clarify the H$^-$ ion extraction and beam formation process in the vicinity of the beam extraction hole i.e. extraction region in the H$^-$ ion source. In the previous works, the extraction region in the Linac4...
The Neutralized Drift Compression eXperiment (NDCX-II) at Lawrence Berkeley National Laboratory is an induction accelerator designed to deliver intense nano-second pulses of ions, up to several tens of nC/pulse, with kinetic energy up to 1.2 MeV [1]. A filament-driven multicusp plasma ion source [2] is used to generate pulsed helium ion beams. Both filament and arc power supplies are pulsed to...
The instrumented calorimeter STRIKE (Short-Time Retractable Instrumented Kalorimeter Experiment) has been designed with the main purpose of characterizing the SPIDER negative ion beam in terms of beam uniformity and divergence during short pulse operations. STRIKE is made of 16 1D Carbon Fibre Composite (CFC) tiles, intercepting the whole beam and observed on the rear side by infrared (IR)...
Magnetic confinement of plasma is of importance for improving the ionization efficiency particularly for hot cathode discharge plasma [1]. In this contribution, we present an investigation on the effects of varying multicusp configuration of annular SmCo magnets on plasma confinement for hot cathode plasma and its consequences on ion beam generation. Hot cathode plasma was subjected to a...
Graphene Oxide is an insulator consisting of oxygenated functional groups, so that, for restoring its electrical conductivity, chemical or heat treatments can be employed. Presently, a selective deoxygenation of graphene oxide has been conducted for design and fabrication of graphene based devices. The Ion beam lithography is considered a powerful route for patterning onto graphene oxide foil....
The installation and testing of the commissioning 14.5 GHz ECR ion source ARTEMIS at the Facility for Rare Isotope Beams (FRIB) was completed in the fall of 2016. The ion source is providing beam to the FRIB Front End and will be used throughout the commissioning of the linac accelerator. The paper reviews the first commissioning result and beam measurements with Argon and Krypton beams...
A strong spontaneous-focusing of low energy ion beam (~150 eV) having the high current density (~3 mA/cm$^{2}$) was observed using three sets of concave electrodes with nominal focal length of 350 mm [1-5], where the ion and electron current density profiles were measured by Faraday cups in an ion beam propagation chamber, to which the ion beam is injected from the ion source [6]. To study the...
In the framework of the LHC Injector Upgrade program, a new normal conducting linac (Linac4) operating at the frequency of 352 MHz has been recently commissioned to the final energy of 160 MeV. Linac4 will be connected to the LHC injector chain in 2020 and it is expected to provide a 40 mA, 400 µsec H$^-$ beam for charge-exchange injection into the Proton Synchrotron Booster.
The Linac4...
At the Inter University Accelerator Centre, Delhi, the High Current Injector Programme mainly consisting of an 18 GHz High Temperature Superconducting ECR Ion Source on a 100 keV high voltage platform followed by radiofrequency quadrupole and drift tube linear accelerators will serve as an alternate injector to the existing Superconducting Linear accelerator. Studies related to the...
The external beam line for the Twin Electron Beam Ion Source (EBIS) is intended for transmission of highly charged ions extracted from EBIS for consequent injection into a high-frequency RFQ, and for general diagnostics of ion beams being extracted from or injected into the EBIS. For medical or industrial applications it can be mostly light ions with charge to mass ratio of 0.5 – 0.4. The...
An ion source was designed utilizing a planar magnetron with 2-inch diameter pure boron target. The discharge can operate both in DC and pulsed mode. Boron as a semiconductor has low conductivity at a room temperature, which still is sufficient to start low-current (2 mA) high-voltage (2000 V) DC discharge. Due to the target heat insulation, it gradually rises the temperature to 300 ºC and...
The proton source and LEBT will be delivered to ESS in November 2017 by INFN-LNS. In order to prepare for the commissioning of this system at ESS, understanding the beam dynamics of the beam extraction and transport at low energy is important. The ion source and LEBT were commissioned at INFN-LNS in 2016-17 with measurements of the beam current, fractions of different ion species (H$^{+}$,...
The set-up of the CERN-MEDICIS facility for production of novel radioisotopes for biomedical applications is in the process of completion. The Radiochemical Laboratory for the extraction of samples of medical radionuclides and the dedicated Mass Separator Bunker have been built, the radiation protection is prepared, and the associated infrastructure is reaching an advanced stage [1]. For the...
The paper reports a novel method of increasing the fraction of H ion produced by vacuum arc ion sources with metal hydride cathodes, which applies the ionic selectivity of inclined-aperture extraction grid to separate and filter heavy metal ions. Since H ion and Ti ion produced by vacuum arc discharge have great differences in kinetic energy and mass-to-charge ratio, H ions are easy to pass...
Since the 90s the ion beam irradiation experiments are under development at the heavy ion RFQ HIP-1 (Heavy ion Prototype) in the Institute for Theoretical and Experimental Physics named by A.I. Alikhanov of National Research Centre «Kurchatov Institute»; ("Kurchatov institute" - ITEP). The linac provides accelerated beams of $\text{Cu}^2+$, $\text{Fe}^2+$ ions with current up to 6 mA and...
The RF negative ion source NIO1 (Negative Ion Optimization 1) [1], built at Consorzio RFX in Padova (Italy), aims at investigating basic issues of ion source physics while providing a tool to benchmark and validate beam simulation codes. Due to its small size and its modular design, NIO1 represents a valuable testbed for DEMO relevant solutions, such as energy recovery and alternative systems...
In the framework of the research and development activities of the SPES project regarding the optimization of the radioactive beam production a new home-made Time of Flight Mass Spectrometer (ToF-MS) has been built in the off-line laser laboratory.
Thanks to this instrument it is possible to test resonant laser ionization processes of stable species, to evaluate their ionization efficiency and...
In J-PARC, peak H$^-$ current of several tens mA is produced from a cesiated hydrogen plasma ignited by a solid-state rf amplifier with the frequency of 2 MHz [1-3]. In case of the high-intensity H$^-$ beam extracted from the ion source, the plasma density in the source chamber is so high that the ion sheath around the beam extraction area follows the rf oscillation. The reason is that the ion...
Ion extraction from DECRIS-PM (Dubna Electron Cyclotron Resonance Ion Source with Permanent Magnets) source is simulated by using initial distributions of ions at the extraction aperture obtained with NAM-ECRIS (Numerical Advanced Model of ECRIS) code.Three-dimensional calculations of plasma emissive surface are done and ions are traced in the extraction region. The ion beam profiles show...
Recently, we reported the fullerene modification using neutral-neutral or neutral-ion collision reactions in the two-chamber configuration of the Bio-Nano electron cyclotron resonance ion source (ECRIS) [1]. In our methodology, modified fullerenes can be synthesised in vapor-phase in an ECR plasma, or on a surface of a plasma chamber, and can be characterised by on-line mass spectrometric...
At GSI a high current test injector (HOSTI) is in operation since 2009. It has been designed for the experimental investigation of high brilliance low charge states ion beams and for the injection optimization of high current ion beams into the existing and future LINAC.
The ion beam from HOSTI is extracted with a three-electrode system and post-accelerated to match the longitudinal input...
For the ESS project, an Emittance Measurement Unit (EMU) was developed by CEA Saclay. This EMU, based on Allison scanner design, was installed in a LEBT for the ion source commissioning at INFN-LNS at the beginning of the year 2017. Transverse emittance is one of the key measurements to be performed during the commissioning of the low energy sections of a hadron linac.The good knowledge of the...
Injector beam test facility at Rare Isotope Science Project (RISP) was prepared to test ion beam acceleration before installation of the accelerating instruments at accelerator tunnel. The facility consists of an electron cyclotron resonance ion source (ECRIS), a low energy beam transport (LEBT), a radio-frequency quadrupole (RFQ), and a medium energy beam transport (MEBT). The initial tests...
Endohedral fullerene is expected to be utilized for such applications as quantum computing or magnetic resonance imaging contrast agent, because it has various material characters [1]. It is confirmed that multiply charged fullerene ion beam has been produced in electron cyclotron resonance ion source (ECRIS) at Osaka Univ. [2]. However, it can’t be simply identified because spectrum of...
A new tandem type source on the basis of electron cyclotron resonance (ECR) plasma has been constructed for producing synthesized ion beams in Osaka University [1]. Both stage plasmas can be individually operated, and produce ions in which the energy is controlled by a large bore extractor and can also be transported from the first to the second stage. We have already investigated the basic...
We have been developing on proton beam generation with a Laser ion Source (LIS). A LIS has its uniqueness in providing various species of ion beams only by changing solid material target which is irradiated by high intensity pulsed laser. The methods to provide heavy ion beams such as Au or Fe solid target were already established, but there has been no attempt to produce proton beam with LIS....
The space charge compensation process is important in order to transport ion beams with high perveance from the source to the RFQ. In particular, not fully compensated beams may develop halo and emittance growth at the entrance of the RFQ. The signal of incomplete compensation is the presence of a significant residual potential (in the range of 5% or 10% of the uncompensated potential). In...
The use of electrode for ion implantation was realized for plasma treatment to achieve dose uniformity and increased ion implantation energy by affecting the trajectory and energy of the ion beam [1]. The effect of the electrode addition was seen from the ion implantation of insulating materials as well as producing low-energy ion beams for material synthesis and surface modification [2]. ...
MedAustron is a hadron therapy facility in Wiener Neustadt, Austria, based on the PIMMS design (Proton-Ion Medical Machine Study). The injector features three Supernanogan ECR ion sources from Pantechnik. One is reserved for proton therapy, one for therapy with carbon ions, and the third one serves as a backup and might be used for clinical and non-clinical research in the future. Patients are...
A new type of laser ion source was developed to produce low charge state positive, negative, and cluster ions by constricting a plasma in a narrow cylindrical volume formed by the target ion material. The basic operation of the ion source involves the ablation of a spot within a cylindrical hollow target by a Q-switched laser. The focused laser strikes the inside surface of the target at a...
A 100 keV, negative hydrogen ion based neutral beam system is at the developmental stage in INTF at Institute for Plasma Research (IPR), India. This test facility is used for characterising the large beam source which is to be used in the Diagnostic Neutral Beam (DNB) for ITER. A large number of diagnostics are also at the developmental stage for measuring and monitoring the beam performance....
China Jinping Underground Laboratory (CJPL) is currently the deepest underground Lab in the world. By taking advantage of the ultralow background in Jinping underground lab, a 400 kV high voltage accelerator driven by a 2.45 GHz ECR ion source and highly sensitive detectors are planned to be used to study directly a number of important nuclear reactions. A compact and intense 2.45 GHz...
In the present work, the study of the discharge characteristics of the Penning plasma source (PS) by analyzing the energy and mass-charge spectra of ions emitted by PS in the longitudinal direction is presented. Characteristic anode dimensions of the PS are 15 mm x Ø12 mm and the magnetic induction magnitude is 80 mT. It was shown that there were sharp ‘jumps’ in the discharge current (up 300...
A 100 MeV high intensity proton cyclotron, CYCIAE-100, has been built at China Institute of Atomic Energy (CIAE) as a driving accelerator for the Beijing Radioactive Ion-Beam Facility (BRIF). The proton beam of 25 uA/100 MeV has been used at the primary test in 2014. Now the proton beam of 1000uA/1MeV has been obtained. This paper will depict the injection beam line, including the $\text{H}^-$...
The SC200 compact superconducting cyclotron is supposed to contribute on the proton therapy under the collaboration of the Institute of Plasma Physics, Chinese Academy of Sciences (ASIPP) and the Joint Institute for Nuclear Research (JINR). The energy of cyclotron is 200Mev with the maximum proton beam current of ~400nA from the cyclotron outlet. The hot cathode Penning Ionization Gauge (PIG)...
For overcoming limitation of convectional particle therapy, the development of Accelerator-based Boron Neutron Capture Therapy (A-BNCT) is in progress by Dawonsys Co. Ltd. Dawonsys developed a duoplasmatron ion source for A-BNCT and KBSI (Korea Basic Science Institute) is developing an Electron Cyclotron Resonance Ion Source (ECRIS) as alternative candidate of duoplasmatron. The proton ion...
VIBA (Versatile Ion Beam Accelerator) is a compact linear accelerator facility using 28 GHz ECR ion source at KBSI (Korea Basic Science Institute). The goal of VIBA is to support various researchers using low-energy ion beams. During the year, diagnosis system of VIBA was changed for ion implantation. Ion implantation chamber was separated from the conventional diagnostic chamber for improving...
The commissioning and first results of the ion source to test the Extremely Low Energy Antiproton Ring ELENA are presented. ELENA is a compact ring for cooling and further deceleration of 5.3 MeV antiprotons delivered by CERN Antiproton Decelerator (AD) down to 100 keV. Because of the long AD cycle of 100 s, one ion source for protons and H$^{-}$ with a kinetic energy of 100 keV has been...
The LECR4 ion source (Lanzhou ECR ion source No.4) has been successfully put into service at IMP since February 2014. It includes the evaporative cooling magnets to provide the injection and an extraction magnet field. It is the first time for evaporative cooling technology used in ECR ion source in the world. According to the running of LECR4 in the following 4 years, the evaporative cooling...
The Korea Basic Science (KBSI) is developing a Gas Cluster Ion Source (GCIS) for X-ray Photoelectron Spectroscopy (XPS) and Secondary Ion Mass Spectroscopy (SIMS) since 2014. The experimental system was installed for generation of argon gas cluster ion beam using GCIS which consists of cluster generator, ionizer, Wien filter, accelerator, micro lens and target. For analysis of gas cluster ion...
SC200 is an isochronous cyclotron which generate 200 MeV, 500 nA proton for particle therapy. As an important component of the cyclotron, the ion source chimney needs to be tested and optimized. The simulation results and optimization of ion source in test-bed for SC200 are described in this paper. The simulation results show that the extraction slit with different sizes and shapes has an...
We have constructed tandem-type electron cyclotron resonance ion source (ECRIS) which consists of two individual ion sources [1]. We aim at synthesizing endohedral metallofullerenes by transporting metal ion beam from the first stage into the fullerene plasma in the second stage. Since the fullerene is dissociated in the second stage by use of conventional microwave source, low power microwave...
