A5013346237- Particle accelerators and beam dynamics
- Particle Accelerators and Free-Electron Lasers
- Plasma Diagnostics and Applications
- Magnetic confinement fusion research
- Atomic and Molecular Physics
- Superconducting Materials and Applications
- Nuclear Physics and Applications
- Gyrotron and Vacuum Electronics Research
- Radiation Detection and Scintillator Technologies
- Mass Spectrometry Techniques and Applications
- Advanced Radiotherapy Techniques
- Ion-surface interactions and analysis
- Muon and positron interactions and applications
- Electromagnetic Simulation and Numerical Methods
- Agricultural Economics and Practices
- Chemical and Physical Properties of Materials
- Atomic and Subatomic Physics Research
- Advanced NMR Techniques and Applications
- Integrated Circuits and Semiconductor Failure Analysis
- Medical Imaging Techniques and Applications
- Digital Rights Management and Security
- Astronomical Observations and Instrumentation
- Human Resource Development and Performance Evaluation
- Advanced Data Storage Technologies
- Electromagnetic Compatibility and Measurements
TRIUMF
2015-2024
University of British Columbia
2023
Simon Fraser University
2023
University of Victoria
2023
University of Groningen
2010-2012
Zorginstituut Nederland
2008
A new high field spectrometer has been built to extend the capabilities of $\beta$-detected nuclear magnetic resonance ($\beta$-NMR) facility at TRIUMF. This beamline extension allows $\beta$-NMR spectroscopy be performed with fields up 200 mT parallel a sample's surface (perpendicular ion beam), allowing depth-resolved studies local electromagnetic spin polarized probes much higher applied than previously available in this configuration. The primary motivation and application is allow...
ARIEL is the new TRIUMF facility for production of radioactive ion beams that will enable delivery three simultaneous RIB to ISAC experimental stations. Two additional target stations produce by using either a 50 kW proton or from 500 electrons via photofission. The electron beam driver going be MeV 10 mA CW superconducting linac. first stage e-linac installation completed and commissioning underway. paper present design characteristics, installation, strategy current results.
CANREB (CANadian Rare isotope facility with Electron Beam ion source) at TRIUMF will deliver pure, highly charged, radioactive beams suitable for acceleration in order to perform experiments investigate nuclear reactions. Radioactive isotopes are produced by bombarding solid targets high energy particle beams. Singly charged ions extracted from an source immediately coupled the target. complement presently used ECRIS based charge state breeder system providing higher purity and extending...
<title>Abstract</title> We report direct measurements of the magnetic field screening at limits Meissner phase for two superconducting Nb samples. The samples are processed with different surface treatments that have been developed radio-frequency cavity applications — a “baseline” treatment and an oxygen-doping (“O-doping” ) treatment. show: 1) length is significantly longer in “O-doping” sample compared to sample; 2) near increases applied field; 3) evolution profile as material...
We report direct measurements of the magnetic field screening at limits Meissner phase for two superconducting Nb samples. The samples are processed with different surface treatments that have been developed radio-frequency cavity applications -- a "baseline" treatment and an oxygen-doping ("O-doping") treatment. show: 1) length is significantly longer in "O-doping" sample compared to sample; 2) near increases applied field; 3) evolution profile as material transitions from mixed phase; 4)...
Abstract A compact and versatile ion source was designed commissioned to be used with the new low energy beam facilities at TRIUMF. The is based on principle of surface ionization, in which ions are generated from a neutral atom by impact solid surface. design considered several factors, including type ions, intensity, emittance extracted beams source. Commercially available alkali materials an ionizer source; integrated house extraction transport system. performance characterized using...
Abstract The TRIUMF Stable Ion Source group has been developing negative and positive ion sources for decades, including a few arc-discharge H-/D- microwave-driven source medical cyclotrons [1] other applications. smallest with 125 cc plasma chamber can produce up to 5 mA continuously. largest 1200 is able 60 increased arc power enhanced magnetic confinement. filament-less microwave capable of producing H- current years without any manual intervention. A historical overview development at...
Abstract An ion beam transport system has been designed to a highly intense and bright extracted from the H − source. This new will be installed at injection terminal for TRIUMF’s 500 MeV cyclotron. The low energy part of section (25 keV) in with magnetic optical elements order maintain space charge neutralization. includes permanent magnet lens, steerers, pulser, dump, 300 kV acceleration column electron positive suppressor rings. Beam optics calculations have performed, including effects...
Abstract In 2008, a Supernanogan ECR ion source from PANTECHNIK was introduced in addition to an in-house developed microwave and surface complement the TRIUMF Offline Ion Source (OLIS) facility provide highly charged ions ISAC experiments. Originally, it employed 400 W Travelling Wave Tube Amplifier (TWTA) for RF heating, but less than 50 enough produce all multi-charged beams required by A solid-state amplifier added redundancy purposes, we found significant improvement when both were...
Commissioning of the CANREB (CANadian Rare isotope facility with Electron Beam ion source) system and its associated beamlines has recently begun at TRIUMF. At head this beamline is an source used to produce stable alkaline ions energy up 60 keV for system. Throughout commissioning, it essential have a means verifying beam quality ensuring that required parameters along are met. This accomplished using tomography reconstruction, which consists taking one-dimensional scans different...
We have started an experimental and theoretical program to better understand the extraction transport of intense multiply charged ion beams from electron cyclotron resonance source (ECRIS). In this paper we present first results concerning a simple, monocomponent He(+) beam extracted ECRIS. calculated trajectories starting ECRIS plasma electrode up image plane analyzing magnet taking into account space-charge effects fringe fields. The initial phase-space distribution at aperture has been...
A detailed experimental and simulation study of the extraction a 24 keV He(+) beam from an ECR ion source subsequent transport through analyzing magnet is presented. We find that such slow very sensitive to space-charge forces, but also neutralization beam's space charge by secondary electrons virtually complete for currents up at least 0.5 mA. The emittance directly behind system 65 π mm mrad determined fact extracted in strong magnetic fringe field source. relatively large its...
Purpose: To analyze the treatment plans generated using physical and enhanced dynamic wedges for head neck patients from Eclipse planning system. Materials Methods: The wedge filters of angles 15°, 30°, 45° 60° are used. In Enhanced Dynamic Wedge technique no external beam modifier is used to create dose profiles, instead wedged isodose profiles created by sweeping action jaw open closed position while on. rate speed also varied during treatment, which function selected energy, field size...
Ion source development at KVI is focused on increasing the beam intensity from electron cyclotron resonance ion injector and optimizing transport injection into superconducting AGOR cyclotron. We describe several modifications that have resulted in a significant performance increase of source. also present first results simulations been performed to better understand losses extraction region low-energy system. Finally, new emittance meter based combination pepperpot scanning techniques will...
The electron source in the TRIUMF ARIEL project is a gridded dispenser cathode. cathode biased at -300kV, and grid requires RF control signal of up to 150V 650 MHz. required power approximately 20 W provided by an amplifier located outside gun vessel. This coupled into circuit through ceramic transmission line. design this line, as well impedance transformation which provides both matching dc powers assembly are described.