Radiative transport modeling in technological plasmas and combustion
Lead Research Organisation:
University College London
Department Name: Physics and Astronomy
Abstract
Plasma technology has become a major driver of the modern economy. Industrial applications are numerous and increasing due to the unique
properties plasmas can offer. Applications range from semiconductor manufacturing, plasma-assisted combustion to plasma medicine, plasma catalysis to
plasma fusion. Plasmas are often used industrially for surface treatment or as a chemical process catalysis. Plasma glow is an inherent energy loss channel which
results in the emission of radiation. This glow provides a helpful tool to understand what species dominate in the plasma as well as applications such as sterilisation of germs. Sometimes radiation has a negative impact on plasma processes such as radiation damage to semiconductors during microchip manufacturing. Currently, most plasma models ignore the role of radiation meaning there is a lack of knowledge about an essential process in the plasma. Without assessing the radiative processes the plasma cannot be fully understood.
The proposal aims to provide the capability to model radiative processes in (technological) plasmas by combining two databases: the ExoMol database of molecular
radiative properties, developed at UCL for the study of the atmospheres of exoplanets and other hot bodies, and QDB (the Quantemol DataBase) of plasma reactions
developed by project partner Quantemol Ltd to provide input to models of (technological) plasmas. The combined database will be augmented by software which
will allow full radiative-collisional modelling of the given plasma and simulated high resolution emission spectra of the resulting plasma.
The project aims to provide a commercial product by the end of the grant period.
properties plasmas can offer. Applications range from semiconductor manufacturing, plasma-assisted combustion to plasma medicine, plasma catalysis to
plasma fusion. Plasmas are often used industrially for surface treatment or as a chemical process catalysis. Plasma glow is an inherent energy loss channel which
results in the emission of radiation. This glow provides a helpful tool to understand what species dominate in the plasma as well as applications such as sterilisation of germs. Sometimes radiation has a negative impact on plasma processes such as radiation damage to semiconductors during microchip manufacturing. Currently, most plasma models ignore the role of radiation meaning there is a lack of knowledge about an essential process in the plasma. Without assessing the radiative processes the plasma cannot be fully understood.
The proposal aims to provide the capability to model radiative processes in (technological) plasmas by combining two databases: the ExoMol database of molecular
radiative properties, developed at UCL for the study of the atmospheres of exoplanets and other hot bodies, and QDB (the Quantemol DataBase) of plasma reactions
developed by project partner Quantemol Ltd to provide input to models of (technological) plasmas. The combined database will be augmented by software which
will allow full radiative-collisional modelling of the given plasma and simulated high resolution emission spectra of the resulting plasma.
The project aims to provide a commercial product by the end of the grant period.
Publications
Owens A
(2024)
ExoMol line lists - LI. Molecular line lists for lithium hydroxide (LiOH)
in Monthly Notices of the Royal Astronomical Society
Owens A
(2022)
ExoMol line lists - XLVII. Rovibronic molecular line list of the calcium monohydroxide radical (CaOH)
in Monthly Notices of the Royal Astronomical Society
Owens A
(2023)
LiDB: Database of molecular radiative lifetimes for plasma processes
in Plasma Sources Science and Technology
Tennyson J
(2022)
The 2021 release of the Quantemol database (QDB) of plasma chemistries and reactions
in Plasma Sources Science and Technology
Wang R
(2023)
NASA Polynomial representation of molecular specific heats
in Journal of Quantitative Spectroscopy and Radiative Transfer
Title | Databases of molecular line lists |
Description | Our molecular line lists have been collected as data. These are distributed directly from our own website and via other data centres (Strasbourg, BADC) and via other databases: HITRAN, GEISA, KIDA, BASECOL, HITEMP etc |
Type Of Material | Database/Collection of data |
Provided To Others? | Yes |
Impact | HITRAN has 200,000 users. Our data is now central to this. Other data is having an important influence in other key areas eg Exoplanet research. |
Description | Quantemol |
Organisation | Quantemol Ltd |
Country | United Kingdom |
Sector | Private |
PI Contribution | Collaboration on research topics |
Collaborator Contribution | money, computer programs, help |
Impact | Quantemol product development |