Decoupling ion energy and flux in intermediate pressure capacitively coupled plasmas via tailored voltage waveforms

SJ Doyle, AR Gibson, RW Boswell… - Plasma Sources …, 2020 - iopscience.iop.org
The discrete control of ion energy and flux is of increasing importance to industrially relevant
plasma sources. The ion energy distribution functions (IEDFs) and net ion flux incident upon …

Influence of surface materials on the volume production of negative ions in a radio-frequency driven hydrogen plasma

J Ellis, J Branson, K Niemi… - Journal of Physics D …, 2020 - iopscience.iop.org
Negative atomic hydrogen ion (H−) densities were measured in a pulsed low-pressure E-
mode inductively-coupled radio-frequency (rf) driven plasma in hydrogen by means of laser …

Analysis in microwave-driven plasma for miniature space propulsion

K Kim, KB Chai, GS Yun - Plasma Sources Science and …, 2024 - iopscience.iop.org
Abstract Microwave-driven Coaxial Transmission Line Resonator (µ-CTLR) produces a
small-volume high density plasma plume. In the previous study, we discovered that the …

Magnetic enhancement of the electrical asymmetry effect in capacitively coupled plasmas

SJ Doyle, RW Boswell, C Charles… - Journal of Physics D …, 2024 - iopscience.iop.org
The development of real-time control strategies for key discharge parameters, such as
densities, fluxes, and energy distributions, is of fundamental interest to many plasma …

[HTML][HTML] Ionization and neutral gas heating efficiency in radio frequency electrothermal microthrusters: The role of driving frequency

S Leigh, SJ Doyle, GJ Smith, AR Gibson… - Physics of …, 2024 - pubs.aip.org
The development of compact, low power, charge–neutral propulsion sources is of significant
recent interest due to the rising application of micro-scale satellite platforms. Among such …

Inducing locally structured ion energy distributions in intermediate-pressure plasmas

SJ Doyle, AR Gibson, RW Boswell, C Charles… - Physics of …, 2019 - pubs.aip.org
Ion energy distribution functions (IEDFs) incident upon material surfaces in radio frequency
(rf) capacitively coupled plasmas are coupled to spatial and temporal sheath dynamics …

Control of electron, ion and neutral heating in a radio-frequency electrothermal microthruster via dual-frequency voltage waveforms

SJ Doyle, AR Gibson, RW Boswell… - Plasma Sources …, 2019 - iopscience.iop.org
The development of low power micro-propulsion sources is of recent interest for application
on miniature satellite platforms. Radio-frequency (rf) plasma electrothermal microthrusters …

Spatial structures of different particles in helicon plasma

Z Zhang, J Zhang, Y Sun - Journal of Electric Propulsion, 2024 - Springer
The spatial density structures of different particles (high-energy electron excited ionic and
low-energy electron excited neutral particles) in both discharge and plume plasmas of a …

Comparative studies of compact kHz and MHz driven low pressure plasmas by emission and laser spectroscopy

S Mitic, J Kaupe, P Riedl, D Coenen - Physics of Plasmas, 2019 - pubs.aip.org
The temporal evolution of a low pressure argon plasma driven by a combination of radio
frequency and kilohertz frequency power sources was characterized by phase resolved …

[PDF][PDF] Supersonic constricted plasma flows

TS Ho - 2018 - core.ac.uk
Abstract The Pocket Rocket electrothermal microthruster is a miniaturised electric propulsion
system designed for nanosatellites operating in space. A weakly ionised capacitively …