Results 71 to 80 of about 4,784,253 (254)

Generation of electron bunches at low repetition rates using a beat-frequency technique

open access: yesPhysical Review Special Topics. Accelerators and Beams, 2007
Even at a continuous wave facility such as CEBAF at Jefferson Lab, an electron beam with long time intervals (tens of ns) between individual bunches can be useful, for example, to isolate sources of background via time of flight detection or to measure ...
M. Poelker   +4 more
doaj   +1 more source

Neutral-beam research and development at LBL, Berkeley [PDF]

open access: yes, 1973
The neutral-beam research and development effort at LLL has been concerned mainly with design, construction, and testing of ion sources needed in present and planned experiments, chiefly at LLL.
Baker, W. R.   +13 more
core  

Monochromatic neutral kaon beam [PDF]

open access: yes, 1980
A design for a monochromatic, neutral kaon (K/sup 0/) beam, which could be constructed at a Kaon Factory, is described.
Hoffman, C.M.
core   +1 more source

Chitin‐Derived Carbon‐Metal Functional Materials

open access: yesAdvanced Functional Materials, EarlyView.
Functional carbon materials are synthesized from combination of biopolymer (chitin) and iron precursors. The resultant material exhibits superior surface area and adsorptive properties compared to carbon materials synthesized directly from pure chitin.
Herry Fang   +7 more
wiley   +1 more source

Bio‐Inspired Artificial Ionic Mechanoreceptor

open access: yesAdvanced Functional Materials, EarlyView.
A skin‐inspired artificial mechanoreceptor based on ionic interactions is presented for biomimetic tactile sensing. Pressure‐driven ionic redistribution within microfluidic channels generates a self‐powered electrical signal without external bias. The generated waveform exhibits mechanoreceptor‐like temporal features, including overshoot and undershoot,
Mohammad Akbari   +4 more
wiley   +1 more source

Phase-space characterization of negative ion beams for fusion

open access: yesNuclear Fusion
Multi-grid, multi-aperture accelerators are used in ion sources of neutral beam injectors (NBIs) for fusion. Accelerators are typically optimized by numerical tools, usually taking the e-fold divergence as a valuable global indicator of the single ...
Carlo Poggi   +3 more
doaj   +1 more source

Tracking Battery Microstructural Degradation Through Directional Thermal Transport Signatures

open access: yesAdvanced Functional Materials, EarlyView.
In lithium‐ion batteries, heat conduction varies between the through‐plane and in‐plane directions because of the cell's layered structure. Therefore, cell degradation influences thermal conductivity in each direction uniquely due to detailed microstructural and compositional changes.
Mohammad Shoghi Tekmedash   +6 more
wiley   +1 more source

Overview of fast particle experiments in the first MAST Upgrade experimental campaigns

open access: yesNuclear Fusion
MAST-U is equipped with on-axis and off-axis neutral beam injectors (NBI), and these external sources of super-Alfvénic deuterium fast-ions provide opportunities for studying a wide range of phenomena relevant to the physics of alpha-particles in burning
J.F. Rivero-Rodríguez   +32 more
doaj   +1 more source

Study on influence of propellant flow rate on ECR ion source beam current

open access: yesXibei Gongye Daxue Xuebao
The electron cyclotron resonance (ECR) ion source with grid inlet has the characteristics of low propellant supply pressure and no cathode required for operation, so it has the potential for application in atmosphere breathing electric propulsion.
MOU Hao   +5 more
doaj   +1 more source

Design of a Negative Ion Neutral Beam System for TNS

open access: yes, 1978
A conceptual design of a neutral beam line based on the neutralization of negative deuterium ions is presented. This work is a detailed design of a complete neutral beam line based on using negative ions from a direct extraction source.
Easoz, J. R.
core   +1 more source

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