Results 21 to 30 of about 32,618 (300)

Neutral particle acceleration by spatially modulated laser pulses

open access: yesNew Journal of Physics, 2023
The velocity gain of neutral particles (atoms, molecules, etc) from laser acceleration is always small. A possible scheme to obtain a high speed neutral particle beam is multistage acceleration. However, according to previous theoretical and experimental
J Y Yan, W Wang, Q Wei, P X Wang
doaj   +1 more source

Modelling the neutralisation process in neutral beam injectors [PDF]

open access: yes, 2009
High power neutral beams currently play an important role in heating, fuelling and diagnosing magnetically confined thermonuclear fusion plasmas. At the Joint European Torus (JET) in Oxfordshire, England, the formation of such a beam involves passing a ...
Fitzgerald, Niall J.
core   +1 more source

Nitrogen-Doped Multi-Scale Porous Carbon for High Voltage Aqueous Supercapacitors

open access: yesFrontiers in Chemistry, 2018
Recently, “Water-in-salt” electrolyte has been reported to extend the working voltage of aqueous supercapacitor. However, this electrolyte needs the electrode materials possess some good features such as proper pore structure, high electron and ion ...
Xichuan Liu   +8 more
doaj   +1 more source

Observations of xenon spectra on the EAST x-ray crystal spectrometer for high-temperature plasma diagnostics

open access: yesNuclear Fusion, 2023
The Xe ^44+ 2.7203 Å line, which has been proposed as one of the diagnostic lines for the x-ray imaging crystal spectrometer on ITER, is observed on the EAST tokamak together with its several satellite lines. The observations are made under high electron
Dian Lu   +15 more
doaj   +1 more source

Physics of beam self-modulation in plasma wakefield accelerators [PDF]

open access: yesPhysics of Plasmas, 2015
The self-modulation instability is a key effect that makes possible the usage of nowadays proton beams as drivers for plasma wakefield acceleration. Development of the instability in uniform plasmas and in plasmas with a small density up-step is numerically studied with the focus at nonlinear stages of beam evolution.
openaire   +2 more sources

Biological effectiveness on live cells of laser driven protons at dose rates exceeding 109 Gy/s

open access: yesAIP Advances, 2012
The ultrashort duration of laser-driven multi-MeV ion bursts offers the possibility of radiobiological studies at extremely high dose rates. Employing the TARANIS Terawatt laser at Queen's University, the effect of proton irradiation at MeV-range ...
D. Doria   +18 more
doaj   +1 more source

Design and Development of Dipole Magnet for MIR/THz Free Electron Laser Beam Dumps and Spectrometers

open access: yesParticles
This study presents the design and development of electromagnetic dipole magnets for use as beam dumps and spectrometers in the MIR and THz free-electron laser (FEL) beamlines at the PBP-CMU Electron Linac Laboratory (PCELL).
Ekkachai Kongmon   +4 more
doaj   +1 more source

Article: Heating of beam ions by ion acoustic waves [PDF]

open access: yesAnnales Geophysicae, 1998
Satellite measurements show that ion beams above the auroral acceleration region are heated to hundreds of eV in a direction perpendicular to the magnetic field. We show that ion acoustic waves may be responsible for much of this heating.
A. Vaivads   +3 more
doaj   +1 more source

Beam Emittance and Bunch Length Diagnostics for the MIR-FEL Beamline at Chiang Mai University

open access: yesParticles
The generation of high-quality mid-infrared free-electron laser (MIR-FEL) radiation depends critically on precise control of electron beam parameters, including energy, energy spread, transverse emittance, bunch charge, and bunch length.
Kittipong Techakaew   +3 more
doaj   +1 more source

Localized Multilayer Shielding of an Electron Beam Irradiation Station for FLASH Radiotherapy Experiments

open access: yesParticles
FLASH radiotherapy (FLASH-RT) is a cancer treatment delivering high-dose radiation within microseconds, reducing side-effects on healthy tissues. Implementing this technology at the PBP-CMU Electron Linac Laboratory poses challenges in ensuring radiation
Kanlayaporn Kongmali   +3 more
doaj   +1 more source

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