{"help":"Return the metadata of a dataset (package) and its resources. :param id: the id or name of the dataset :type id: string","success":true,"result":[{"id":"73a97faa-03b3-4f71-a25c-d52b2b69638a","name":"comparison-electron-heating-and-energy-loss-mechanisms-rf-plasma-jet-operated-argon-and","title":"Comparison of electron heating and energy loss mechanisms in an RF plasma jet operated in argon and helium","author_email":"golda@physik.uni-kiel.de","maintainer":"Research Data Repository","maintainer_email":"achim.vonkeudell@rub.de","license_title":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/","notes":"\u003Cp\u003EThe \u03bc-APPJ is a well-investigated atmospheric pressure RF plasma jet. Up to now, it has mainly been operated using helium as feed gas due to stability restrictions. However, the COST-Jet design including precise electrical probes now offers the stability and reproducibility to create equi-operational plasmas in helium as well as in argon. In this publication, we compare fundamental plasma parameters and physical processes inside the COST reference microplasma jet, a capacitively coupled RF atmospheric pressure plasma jet, under operation in argon and in helium. Differences already observable by the naked eye are reflected in differences in the power-voltage characteristic for both gases. Using an electrical model and a power balance, we calculated the electron density and temperature at 0.6 W to be $9\\times {10}^{17}\\,{{\\rm{m}}}^{-3}$, 1.2 eV and $7.8\\times {10}^{16}\\,{{\\rm{m}}}^{-3}$, 1.7 eV for argon and helium, respectively. In case of helium, a considerable part of the discharge power is dissipated in elastic electron-atom collisions, while for argon most of the input power is used for ionization. Phase-resolved optical emission spectroscopy reveals differently pronounced heating mechanisms. Whereas bulk heating is more prominent in argon compared to helium, the opposite trend is observed for sheath heating. This also explains the different behavior observed in the power-voltage characteristics.\u003C\/p\u003E\n","url":"https:\/\/rdpcidat.rub.de\/dataset\/comparison-electron-heating-and-energy-loss-mechanisms-rf-plasma-jet-operated-argon-and","state":"Active","log_message":"Edited by kd.","private":true,"revision_timestamp":"Sun, 03\/21\/2021 - 18:40","metadata_created":"Thu, 03\/19\/2020 - 16:03","metadata_modified":"Sun, 03\/21\/2021 - 18:40","creator_user_id":"7167043a-03f5-4304-b7e0-d95871b4248e","type":"Dataset","resources":[{"id":"d0277a50-ec79-4b44-9a9e-5e8bc7b9bb4c","revision_id":"","url":"https:\/\/rdpcidat.rub.de\/sites\/default\/files\/figure3.zip","description":"\u003Cp\u003Epressure 990 mbar\u003Cbr \/\u003E\n(a) argon; flow rate 400 sccm\u003Cbr \/\u003E\n(b) helium; flow rate 1000 sccm\u003Cbr \/\u003E\nheader gives physical meaning of columns\u003C\/p\u003E\n","format":"ASCII tab separated","state":"Active","revision_timestamp":"Tue, 04\/07\/2020 - 13:55","name":"Figure 3 Data Power dissipation voltage dependence","mimetype":"application\/zip","size":"4.39 KB","created":"Thu, 03\/26\/2020 - 16:06","resource_group_id":"dce52d4d-cd93-43b3-9d0d-d4a42b19ea0a","last_modified":"Date changed  Tue, 04\/07\/2020 - 13:55"},{"id":"85eb7a20-0063-46b2-b6b7-ac4cf16f248f","revision_id":"","url":"https:\/\/rdpcidat.rub.de\/sites\/default\/files\/figure4.zip","description":"\u003Cp\u003Epressure 990 mbar\u003Cbr \/\u003E\n(a) argon; flow rate 400 sccm\u003Cbr \/\u003E\n(b) helium; flow rate 1000 sccm\u003Cbr \/\u003E\nheader gives physical meaning of columns\u003C\/p\u003E\n","format":"ASCII tab separated","state":"Active","revision_timestamp":"Tue, 04\/07\/2020 - 13:55","name":"Figure 4 data Phase angle  voltage dependence","mimetype":"application\/zip","size":"4.65 KB","created":"Thu, 03\/26\/2020 - 16:09","resource_group_id":"dce52d4d-cd93-43b3-9d0d-d4a42b19ea0a","last_modified":"Date changed  Tue, 04\/07\/2020 - 13:55"},{"id":"19451e1e-86c1-4fa6-93f7-01b4424e8096","revision_id":"","url":"https:\/\/rdpcidat.rub.de\/sites\/default\/files\/figure5.zip","description":"\u003Cp\u003Epressure 990 mbar\u003Cbr \/\u003E\n(a) argon: gas flow rate 400 sccm\u003Cbr \/\u003E\n(b) helium discharge: gas flow 1000 sccm\u003C\/p\u003E\n","format":"ASCII tab separated","state":"Active","revision_timestamp":"Tue, 04\/07\/2020 - 13:54","name":"Figure 6 data Electron density as function of dissipated power","mimetype":"application\/zip","size":"1.6 KB","created":"Thu, 03\/26\/2020 - 16:12","resource_group_id":"dce52d4d-cd93-43b3-9d0d-d4a42b19ea0a","last_modified":"Date changed  Tue, 04\/07\/2020 - 13:54"},{"id":"be14a425-98ad-4c3e-a266-1349db2c0e34","revision_id":"","url":"https:\/\/rdpcidat.rub.de\/sites\/default\/files\/figure6.zip","description":"\u003Cp\u003Edissipated power of 0.6; pressure 990 mbar\u003Cbr \/\u003E\na) argon 400 sccm\u003Cbr \/\u003E\nb) helium 1000 sccm\u003Cbr \/\u003E\ncolumn header give physical meaning\u003C\/p\u003E\n","format":"ASCII tab separated","state":"Active","revision_timestamp":"Tue, 04\/07\/2020 - 13:54","name":"Figure 6 data Components of the power balance equation","mimetype":"application\/zip","size":"2.53 KB","created":"Thu, 03\/26\/2020 - 16:18","resource_group_id":"dce52d4d-cd93-43b3-9d0d-d4a42b19ea0a","last_modified":"Date changed  Tue, 04\/07\/2020 - 13:54"},{"id":"5cde0782-35d1-450d-b497-8c17b0ac9a9b","revision_id":"","url":"https:\/\/rdpcidat.rub.de\/sites\/default\/files\/figure8.zip","description":"\u003Cp\u003Ecentral lateral position (x = -15 mm) ; pressure 990 mbar\u003Cbr \/\u003E\na) argon 750 nm emission line; gas flow: 400 sccm; 260 mW\u003Cbr \/\u003E\nb) helium 706 nm emission line; gas flow: 1000 sccm; 260 mW\u003Cbr \/\u003E\nc) argon 750 nm emission line; gas flow: 400 sccm;540 mW\u003Cbr \/\u003E\nd) helium 706 nm emission line; gas flow: 1000 sccm; 540 mW\u003Cbr \/\u003E\ne) helium 706 nm emission line; gas flow: 1000 sccm; 1000 mW\u003Cbr \/\u003E\nFiles give measured intensity counts of the space (distance between electrodes:1mm) phase (0-74 ns) data array\u003C\/p\u003E\n","format":"zip","state":"Active","revision_timestamp":"Tue, 04\/07\/2020 - 13:55","name":"Figure 8 data: phase-resolved emission plots","mimetype":"application\/zip","size":"791.28 KB","created":"Thu, 03\/26\/2020 - 16:27","resource_group_id":"dce52d4d-cd93-43b3-9d0d-d4a42b19ea0a","last_modified":"Date changed  Tue, 04\/07\/2020 - 13:55"},{"id":"a8f47d69-b8df-4008-b584-e11ec6e5f60a","revision_id":"","url":"https:\/\/rdpcidat.rub.de\/sites\/default\/files\/figure7.txt","description":"\u003Cp\u003Eabnormal mode\u003Cbr \/\u003E\nargon (400 sccm) and helium (1000 sccm)\u003Cbr \/\u003E\npressure 990 mbar\u003C\/p\u003E\n","format":"txt","state":"Active","revision_timestamp":"Tue, 04\/07\/2020 - 13:55","name":"Figure 7 data: Bulk and sheath width  as function of dissipated power","mimetype":"text\/plain","size":"8.37 KB","created":"Thu, 03\/26\/2020 - 16:30","resource_group_id":"dce52d4d-cd93-43b3-9d0d-d4a42b19ea0a","last_modified":"Date changed  Tue, 04\/07\/2020 - 13:55"},{"id":"32d90012-f94e-4055-b33f-bc9842614696","revision_id":"","url":"https:\/\/rdpcidat.rub.de\/sites\/default\/files\/figure9.zip","description":"\u003Cp\u003EDevelopment of the intensity integrated across the discharge gap\u003Cbr \/\u003E\na) argon; gas flow rate: 400 sccm; 750 nm emission line intensity\u003Cbr \/\u003E\nb) helium; gas flow rate: 400 sccm; 706 nm emission line intensity\u003Cbr \/\u003E\nphysical meaning of columns n file are given in the header\u003C\/p\u003E\n","format":"ASCII tab separated","state":"Active","revision_timestamp":"Tue, 04\/07\/2020 - 13:55","name":"Figure 9 data: tempoal development Development of the intensity integrated across the discharge gap at different power values","mimetype":"application\/zip","size":"5.58 KB","created":"Thu, 03\/26\/2020 - 16:35","resource_group_id":"dce52d4d-cd93-43b3-9d0d-d4a42b19ea0a","last_modified":"Date changed  Tue, 04\/07\/2020 - 13:55"}],"tags":[{"id":"89b6886a-7b69-4ffe-9826-8aa455632554","vocabulary_id":"2","name":"COST jet"},{"id":"61842eb4-e5c6-4ecd-bd63-b408b615094e","vocabulary_id":"2","name":"cold atmospheric pressure plasma jet"}],"groups":[{"description":"","id":"dce52d4d-cd93-43b3-9d0d-d4a42b19ea0a","image_display_url":"https:\/\/rdpcidat.rub.de\/sites\/default\/files\/COST-logo.png","title":"COST-Jet","name":"group\/cost-jet"}]}]}