H$^-$ cyclotrons, such are TRIUMF 500 MeV machine, are essentially characterized by their large phase acceptance. Since beam extraction relies on charge exchange (H$^-$ to H$^+$) no turn separation is required. Bunches typically occupy several tens of degrees of rf phase, and consequently acquire, during the acceleration process, a large energy spread. This large energy spread leads...
The RIKEN RI Beam Factory (RIBF) is the world's most intense heavy ion accelerator facility based on cyclotrons. We have been operating this facility for 16 years with increasing intensity especially of very heavy ions such as uranium ion. I will report operational experience with the cyclotrons, including problems, failure, and reliability.
A 70-MeV proton cyclotron system (C70) will be installed this year in the ISOL building of Institute for Basic Science, Korea. We made a contract with IBA in June 2019, and the contract will end with site acceptance tests in the middle of 2022. Currently, one beam line is prepared for ISOL target while two target bunkers are constructed. In addition, some area is available for different beam...
The High Intensity Proton Accelerator Facility at PSI routinely produces a 590 MeV proton beam with currents of up to 2.4 mA.
The 1.4 MW beam is used to generate neutrons in spallation targets, and pions in meson production targets. The secondary particles are used for condensed matter and particle physics research at the intensity frontier. This presentation will give an overview of the...
While the best known utilizations of particle accelerators are associated with high-energy physics, a growing number of applications such as heavy ion therapy, energy amplifiers and neutrino factory rather rely on producing high intensity charged particles. For instance, cyclotrons existed since the 1950s and demonstrated their capability to achieve such high intensity beams. Nevertheless, in...
The PSI HIPA cyclotron facility is described and some considerations on maximal continuous beam intensity and related issues are given.
At RIKEN RI Beam Factory (RIBF), Wako, Japan, we have been developing production technologies of radioisotopes (RIs) and conducting RI application studies in the fields of physics, chemistry, biology, engineering, medicine, pharmaceutical and environmental sciences. With light- to heavy-ion beams from the AVF cyclotron, we produce more than 100 RIs from 7Be to 262Db. RIs of a large number of...
IAMI encompasses the multiple accelerator systems at TRIUMF with international expertise in the application of radioactivity in basic and applied research.
The accelerators include protons and electrons from 13 MeV to 500 MeV, all with high beam currents.
The IAMI team will focus on the merging field of Theranostics, bringing the imaging capabilities to the treatment of disease under...
This talk will present a number of physics opportunities associated with a 60 MeV/amu cyclotron, using the IsoDAR experiment as an example.
The Mu3e collaboration is currently constructing the phase I experimental setup at the Paul Scherrer Institut (PSI) over the next two years. A very successful prototype run confirmed the technical concepts being feasible. This setup will reach an unprecedented sensitivity for an upper limit of $BR(\mu\rightarrow e e e) < 10^{-15}$ using a stopping rate of $10^8 \mu^+/s$ on the target. The...
This short talk will underline beam requirements for ADS-R application; foreseeable accelerator options to achieve these, and today's landscape; challenges to overcome; areas of R&D.
A brief review of the present status and future possible developments for Accelerator Driven Reactors, of the requirements for the accelerator, and whether these can be met by a cyclotron or an FFA.
A review of the High power cyclotron projects proposed to drive ADS is shortly present.
Their advantages and limits as drivers for ADS are discussed. The possible technical solutions and/or research needs to overcome these limits are also discussed.
We are developing a vertical excursion FFA (vFFA) for a proton driver of a future spallation neutron source. vFFA could be made with small footprint than cyclotrons or conventional FFAs. Coupled optics may (or may not) help high intensity operation. We will present the status of vFFA design study at RAL.
A research project is ongoing at IBA to design an innovative compact high-intensity self-extracting cyclotron. The project, named InnovaTron, has received funding from the EU H2020 MSCA programme. In the self-extracting cyclotron, proton beams are extracted without any active device. A prototype cyclotron was built by IBA in 2001. Proton currents up to 2 mA were extracted from it. InnovaTron...
The IsoDAR project is a neutrino experiment that re-quires a high current molecular hydrogen beam at 60 MeV/amu, which will be produced by a cyclotron. A critical aspect of the design is the injection, which comprises an ion source, a compact low energy beam transport section (LEBT), and a radio-frequency quadrupole (RFQ) buncher embedded in the cyclotron yoke. The LEBT is optimized to match...
A recent trend in spiral inflector design is the use of transverse electric field gradients in order to influence the optics. These methods can improve the vertical focusing of the inflector and prevent longitudinal de-bunching, increasing the cyclotron transmission. Permanent magnet spiral inflectors offer a possible alternative for fixed-energy machines.
For the conventional electrostatic inflector, one of the limitation for the injection energy is the breakdown voltage between the 2 electrodes. To ensure the uniformity of the electric field, the aperture in a spiral inflector is small, which would also limits the injection intensity. To achieve high energy and high intensity injection. The magnetic inflector is a promising solution. In this...
Typically FFAs are tracked by numerical integration of the equations of motion through the fields, for example using Runge Kutta integration steps. Collective effects are applied at integration steps in the usual way. However, ideal FFAs are an excellent candidate for using a transfer map approach to tracking - transport is, by construction, entirely independent of particle momentum so that a...
The use of numerical models for beam dynamics studies is an essential step in the design process of particle accelerators. These studies demand precise simulation tools describing the movement of the particles subjected to external fields and the interactions with other particles, either within the beam or between the beam and the wall. All these present modeling challenges. Many computer...
TRIUMF hosts several high-power accelerators -- including the 500 MeV cyclotron and the 30 MeV electron linac --, a variety of primary and secondary beamlines, and rare ion beams post accelerators. The computer programs that we use to simulate the beam dynamics in these machines can be grouped into two categories, depending on whether they use a 'detailed' or a 'reduced' beam physics model....
