A5006190506- Particle accelerators and beam dynamics
- Particle Accelerators and Free-Electron Lasers
- Superconducting Materials and Applications
- Nuclear Physics and Applications
- Gyrotron and Vacuum Electronics Research
- Muon and positron interactions and applications
- Radiation Therapy and Dosimetry
- Magnetic confinement fusion research
- Particle Detector Development and Performance
- Plasma Diagnostics and Applications
- Advanced Radiotherapy Techniques
- Radiation Detection and Scintillator Technologies
- Neutrino Physics Research
- Atomic and Subatomic Physics Research
- Photocathodes and Microchannel Plates
- Photonic and Optical Devices
- Effects of Radiation Exposure
- Nuclear reactor physics and engineering
- Astronomical Observations and Instrumentation
- Distributed and Parallel Computing Systems
- Speech Recognition and Synthesis
- Pulsed Power Technology Applications
- Space Satellite Systems and Control
- Cold Atom Physics and Bose-Einstein Condensates
- Radiation Effects in Electronics
TRIUMF
2013-2025
University of Victoria
2021-2025
Kyoto University
2010-2013
Kyoto Katsura Hospital
2011
Kyoto University Research Reactor Institute
2009-2010
Sigma Orionis (France)
2009
Abstract A first irradiation platform capable of delivering 10 MV X-ray beams at ultra-high dose rates (UHDR) has been developed and characterized for FLASH radiobiological research TRIUMF. Delivery both UHDR (FLASH mode) low dose-rate conventional (CONV irradiations was demonstrated using a common source experimental setup. Dose were calculated film dosimetry non-intercepting beam monitoring device; mean values 100 μA pulse (peak) current nominally 82.6 4.40 × −2 Gy/s CONV modes,...
Proton therapy presents an interesting and important challenge to accelerator physics. Practical restrictions such as room size, gantry weight, cost have led a demand for more compact affordable devices. Success would benefit significant number of patients every year. Dielectric wall accelerators could provide this breakthrough, but there is limited work available regarding their feasibility or possible integration into medical devices, no solutions exist longitudinal beam control. In work,...
PurposeUltra-high dose-rate radiotherapy (FLASH-RT) shows the potential to eliminate tumors while sparing healthy tissues. To investigate radiation-induced lung damage, we used in vivo respiratory-gated micro-computed tomography (micro-CT) monitor mice that received photon FLASH-RT or conventional RT on FLASH irradiation research station at TRIUMF.ApproachThirty male C57BL/6 baseline micro-CT scans followed by radiation therapy targeting thorax. Treatments administered included no...
Abstract Objective. To develop a bremsstrahlung target and megavoltage (MV) x-ray irradiation platform for ultrahigh dose-rate (UHDR) of small-animals on the Advanced Rare Isotope Laboratory (ARIEL) electron linac (e-linac) at TRIUMF. Approach. An electron-to-photon converter design UHDR radiotherapy (RT) was centered around optimization tantalum–aluminum (Ta–Al) explosion-bonded target. Energy deposition within homogeneous water-phantom itself were evaluated using EGSnrc FLUKA MC codes,...
The next generation of lepton flavor violation experiments need high intensity and quality muon beams. Production such beams requires sending a short, proton pulse to the pion production target, capturing pions collecting resulting muons in large acceptance transport system. substantial increase beam can be obtained by applying RF phase rotation on dedicated FFAG ring, which was proposed for PRISM project.This allows reduce momentum spread purify from unwanted components like or secondary...
Abstract Measuring neutron capture cross sections of radioactive nuclei is a crucial step towards better understanding the origin elements heavier than iron. For decades, precise measurement direct in “stellar” energy range (eV up to few MeV) was limited stable and longer-lived that could be provided as physical samples then irradiated with neutrons. New experimental methods are now being developed extend these measurements shorter-lived ( $$t_{1/2}<$$ <mml:math...
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.
Fixed Field Alternating Gradient (FFAG) elements are usually designed in a circular shape, but straight sections can also be imagined. A demonstration using the scaling condition is first shown. Combining different FFAG then discussed and opens new possibilities for FFAGs. As an example, application with lattice proposal PRISM project finally presented this paper.
Abstract The search for a dark photon holds considerable interest in the physics community. Such force carrier would begin to illuminate sector. Many experiments have searched such particle, but so far it has proven elusive. In recent years concept of low mass gained popularity Of particular is 8 Be and 4 He anomaly, which could be explained by new fifth with 17 MeV/ c 2 . proposed Darklight experiment this potential at ARIEL 10-20 e + − invariant range. This proceeding will focus on...
To date, beam dynamics studies and design of combined zero degree drift tube linac (DTL) structures (Kombinierte Null Grad Struktur; KONUS) have only been carried out in multiparticle codes. Quantities such as the envelopes are obtained by averaging over particles, whose tracking is computationally intensive for large bunch populations. Tune computations, which depend on this average, burdensome to obtain. This has motivated implementation a simulation KONUS DTLs code transoptr, Hamiltonian...
Abstract Compact H - cyclotrons are used all across the globe to produce medical isotopes. Machines with external ion sources have demonstrated average extracted currents on order of a few mA, although reported operational numbers typically around 1 mA or below. To explore possibility extracting even more current from such cyclotrons, it is important understand mechanisms that drive intensity limits and how they scale. In this paper we review some key aspects beam dynamics in central region...
Ultra-high dose-rate radiotherapy (FLASH-RT) shows the potential to eliminate tumors while sparing healthy tissues. Current FLASH-RT preclinical animal studies either euthanize animals for histological assessment or use blood tests and cytokine assays evaluate normal tissue complications. Assessing progression of complications in situ live with a non-invasive, high-resolution, sensitive diagnostic method is desired. This study demonstrated using vivo respiratory-gated micro-computed...
Multigap cavities are used extensively in linear accelerators to achieve velocities up a few percent of the speed light, driving nuclear physics research around world. Unlike for single-gap structures, there is no closed-form expression calculate output beam parameters from cavity voltage and phase. To overcome this, we propose use method based on integration first second moments distribution through axially symmetric time-dependent fields cavity. A beam-based calibration between model's...