Tennyson, J;
Rahimi, S;
Hill, C;
Tse, L;
Vibhakar, A;
Akello-Egwel, D;
Brown, DB;
... Yoon, J-S; + view all
(2017)
QDB: a new database of plasma chemistries and reactions.
Plasma Sources Science and Technology
, 26
(5)
10.1088/1361-6595/aa6669.
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Abstract
One of the most challenging and recurring problems when modeling plasmas is the lack of data on the key atomic and molecular reactions that drive plasma processes. Even when there are data for some reactions, complete and validated datasets of chemistries are rarely available. This hinders research on plasma processes and curbs development of industrial applications. The QDB project aims to address this problem by providing a platform for provision, exchange, and validation of chemistry datasets. A new data model developed for QDB is presented. QDB collates published data on both electron scattering and heavy-particle reactions. These data are formed into reaction sets, which are then validated against experimental data where possible. This process produces both complete chemistry sets and identifies key reactions that are currently unreported in the literature. Gaps in the datasets can be filled using established theoretical methods. Initial validated chemistry sets for SF6/CF4/O2 and SF6/CF4/N2/H2 are presented as examples.
| Type: | Article |
|---|---|
| Title: | QDB: a new database of plasma chemistries and reactions |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1088/1361-6595/aa6669 |
| Publisher version: | http://dx.doi.org/10.1088/1361-6595/aa6669 |
| Language: | English |
| Additional information: | Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. |
| Keywords: | Physics, atomic and molecular data, plasma chemistry, database, ELECTRON-IMPACT IONIZATION, LOW-ENERGY-ELECTRON, TOTAL CROSS-SECTIONS, R-MATRIX METHOD, CHEMICAL-VAPOR-DEPOSITION, ION-MOLECULE REACTIONS, INDUCTIVELY-COUPLED PLASMAS, VACUUM-ULTRAVIOLET SOURCE, GAS-PHASE REACTIONS, RATE CONSTANTS |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/1551459 |
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