{"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":"daa1087b-4d6c-4724-8618-5c3f286f6486","name":"measurement-atomic-oxygen-densities-using-talif-dielectric-barrier-discharge-insights-volume","title":"Measurement of atomic oxygen densities using TALIF on a dielectric barrier discharge: Insights into the volume above a micro cavity plasma array","author_email":"david.steuer@rub.de","maintainer":"Research Data Repository","maintainer_email":"achim.vonkeudell@rub.de","license_title":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/","notes":"\u003Cp\u003EDielectric barrier discharges, particularly micro cavity plasma arrays, offer significant potential for plasma-catalytic research due to their ability to ignite plasma in direct contact with a catalytic surface, enabling the observation of plasma-surface interactions. A key factor in their application is the generation of reactive species, such as atomic oxygen, within the cavities. These species can interact with both, the surface (e.g., for activation or cleaning) and the gas being treated (e.g., for oxidation). Given the central role of oxygen atoms in plasma catalysis and their use as a model for more complex species, this work investigates the transport of these atoms out of the cavities. Two-photon absorption laser induced fluorescence (TALIF) spectroscopy with picosecond resolution is performed in the volume above the cavities. The results are compared with a basic diffusion model. The reactor operates with a He\/O2 mixture at a flow rate of 1slm and atmospheric pressure. Densities of up to 10^16cm^-3 are measured near the surface. Time-dependent measurements show that, at a distance of 350\u00b5m from the surface, a density equilibrium is reached within less than 3ms of reactor operation. Decay times due to ozone formation after the reactor is turned off are on a similar scale. Spatially resolved measurements show that the oxygen density decreases exponentially from the surface but remains detectable up to approximately 1mm above the surface, indicating significant application potential. Variations in the O2 admixture show a density maximum at 0.4%, confirming previous helium state enhanced actinometry measurements within the cavities.\u003C\/p\u003E\n","url":"https:\/\/rdpcidat.rub.de\/dataset\/measurement-atomic-oxygen-densities-using-talif-dielectric-barrier-discharge-insights-volume","state":"Active","log_message":"Update to resource Figure7","private":true,"revision_timestamp":"Thu, 11\/28\/2024 - 15:26","metadata_created":"Mon, 11\/25\/2024 - 14:12","metadata_modified":"Thu, 11\/28\/2024 - 15:26","creator_user_id":"91284078-6b39-44ab-8d2e-b3961249cf70","type":"Dataset","resources":[{"id":"be655eab-9e66-4086-87b0-739959f66d47","revision_id":"","url":"https:\/\/rdpcidat.rub.de\/sites\/default\/files\/Figure2.csv","description":"\u003Cp\u003EO- and Xe-TALIF signals depending on the squared laser energy. Dashed lines indicate a linear behavior. Conditions: 1slm total gas flow (He + 0.1% O2 or Xe); 700\\,V (for Xenon 0V); z = 350\u00b5m distance from grid surface; gate time = 30ns; exposure time = 60s for O and 10s for Xe.\u003C\/p\u003E\n","format":"csv","state":"Active","revision_timestamp":"Thu, 11\/28\/2024 - 15:23","name":"Figure2","mimetype":"text\/csv","size":"530 bytes","created":"Mon, 11\/25\/2024 - 14:46","resource_group_id":"ee65a14f-0fc2-40e9-a4ba-e85030fe5102","last_modified":"Date changed  Thu, 11\/28\/2024 - 15:23"},{"id":"d893d277-d335-4d79-81ea-cc5f7f515b6d","revision_id":"","url":"https:\/\/rdpcidat.rub.de\/sites\/default\/files\/Figure3.csv","description":"\u003Cp\u003EMeasured and modeled build up and decay time constants depending on O2 admixture. Conditions: 1slm total gas flow (He+O2); 700V amplitude; d = 200\u00b5m cavity diameter; z = 350\u00b5m distance from grid surface; gate time = 30ns; total exposure time = 60s.\u003C\/p\u003E\n","format":"csv","state":"Active","revision_timestamp":"Thu, 11\/28\/2024 - 15:23","name":"Figure3","mimetype":"text\/csv","size":"555.28 KB","created":"Mon, 11\/25\/2024 - 14:48","resource_group_id":"ee65a14f-0fc2-40e9-a4ba-e85030fe5102","last_modified":"Date changed  Thu, 11\/28\/2024 - 15:23"},{"id":"cf63464a-690b-4e25-9797-72b54c5ee4fe","revision_id":"","url":"https:\/\/rdpcidat.rub.de\/sites\/default\/files\/Figure4.csv","description":"\u003Cp\u003EMeasured and modeled build up and decay time constants depending on O2 admixture. Conditions: 1slm total gas flow (He+O2); 700V amplitude; d = 200\u00b5m cavity diameter; z = 350\u00b5m distance from grid surface; gate time = 30ns; total exposure time = 60s.\u003C\/p\u003E\n","format":"csv","state":"Active","revision_timestamp":"Thu, 11\/28\/2024 - 15:23","name":"Figure4","mimetype":"text\/csv","size":"350 bytes","created":"Mon, 11\/25\/2024 - 14:51","resource_group_id":"ee65a14f-0fc2-40e9-a4ba-e85030fe5102","last_modified":"Date changed  Thu, 11\/28\/2024 - 15:23"},{"id":"489400ba-268c-4a9b-8bc0-a21ddaf7db0d","revision_id":"","url":"https:\/\/rdpcidat.rub.de\/sites\/default\/files\/fig5_05_exp.txt","description":"\u003Cp\u003EMeasured and modeled 2d resolved atomic oxygen density for different admixtures. The cavities are located at z = 0mm. Contour lines indicate exemplary densities for the comparability of model and experiment. Conditions: 1slm total gas flow (He+O2); 700V amplitude; d = 200\u00b5m (left) \/ 150\u00b5m (right) cavity diameter; z-step = 50\u00b5m; gate time = 30ns; total exposure time = 60s.\u003C\/p\u003E\n\u003Cp\u003EEXP resolution: y: 1020 pixel, dy = 13\u00b5m, z: 46 pixel, dz = 50\u00b5m.\u003Cbr \/\u003E\nModel resolution: y: 501 pixel, dy = 13.247\u00b5m, z: 100 pixel, dz = 5.079\u00b5m.\u003C\/p\u003E\n","format":"txt","state":"Active","revision_timestamp":"Thu, 11\/28\/2024 - 15:25","name":"Figure5_01_exp","mimetype":"text\/plain","size":"779.78 KB","created":"Mon, 11\/25\/2024 - 15:07","resource_group_id":"ee65a14f-0fc2-40e9-a4ba-e85030fe5102","last_modified":"Date changed  Thu, 11\/28\/2024 - 15:25"},{"id":"6530d23d-5c34-4388-a8cb-29183a1c73b2","revision_id":"","url":"https:\/\/rdpcidat.rub.de\/sites\/default\/files\/fig5_01_model.txt","description":"\u003Cp\u003EMeasured and modeled 2d resolved atomic oxygen density for different admixtures. The cavities are located at z = 0mm. Contour lines indicate exemplary densities for the comparability of model and experiment. Conditions: 1slm total gas flow (He+O2); 700V amplitude; d = 200\u00b5m (left) \/ 150\u00b5m (right) cavity diameter; z-step = 50\u00b5m; gate time = 30ns; total exposure time = 60s.\u003C\/p\u003E\n\u003Cp\u003EEXP resolution: y: 1020 pixel, dy = 13\u00b5m, z: 46 pixel, dz = 50\u00b5m.\u003Cbr \/\u003E\nModel resolution: y: 501 pixel, dy = 13.247\u00b5m, z: 100 pixel, dz = 5.079\u00b5m.\u003C\/p\u003E\n","format":"txt","state":"Active","revision_timestamp":"Thu, 11\/28\/2024 - 15:25","name":"Figure5_01_model","mimetype":"text\/plain","size":"888.83 KB","created":"Wed, 11\/27\/2024 - 09:46","resource_group_id":"ee65a14f-0fc2-40e9-a4ba-e85030fe5102","last_modified":"Date changed  Thu, 11\/28\/2024 - 15:25"},{"id":"05c8727c-609a-4f99-a9e2-66a4c42a1d48","revision_id":"","url":"https:\/\/rdpcidat.rub.de\/sites\/default\/files\/fig5_05_exp_0.txt","description":"\u003Cp\u003EMeasured and modeled 2d resolved atomic oxygen density for different admixtures. The cavities are located at z = 0mm. Contour lines indicate exemplary densities for the comparability of model and experiment. Conditions: 1slm total gas flow (He+O2); 700V amplitude; d = 200\u00b5m (left) \/ 150\u00b5m (right) cavity diameter; z-step = 50\u00b5m; gate time = 30ns; total exposure time = 60s.\u003C\/p\u003E\n\u003Cp\u003EEXP resolution: y: 1020 pixel, dy = 13\u00b5m, z: 46 pixel, dz = 50\u00b5m.\u003Cbr \/\u003E\nModel resolution: y: 501 pixel, dy = 13.247\u00b5m, z: 100 pixel, dz = 5.079\u00b5m.\u003C\/p\u003E\n","format":"txt","state":"Active","revision_timestamp":"Thu, 11\/28\/2024 - 15:25","name":"Figure5_05_exp","mimetype":"text\/plain","size":"779.78 KB","created":"Wed, 11\/27\/2024 - 09:46","resource_group_id":"ee65a14f-0fc2-40e9-a4ba-e85030fe5102","last_modified":"Date changed  Thu, 11\/28\/2024 - 15:25"},{"id":"4e9f2a7c-9c19-44bc-b555-054b6ddede92","revision_id":"","url":"https:\/\/rdpcidat.rub.de\/sites\/default\/files\/fig5_05_model.txt","description":"\u003Cp\u003EMeasured and modeled 2d resolved atomic oxygen density for different admixtures. The cavities are located at z = 0mm. Contour lines indicate exemplary densities for the comparability of model and experiment. Conditions: 1slm total gas flow (He+O2); 700V amplitude; d = 200\u00b5m (left) \/ 150\u00b5m (right) cavity diameter; z-step = 50\u00b5m; gate time = 30ns; total exposure time = 60s.\u003C\/p\u003E\n\u003Cp\u003EEXP resolution: y: 1020 pixel, dy = 13\u00b5m, z: 46 pixel, dz = 50\u00b5m.\u003Cbr \/\u003E\nModel resolution: y: 501 pixel, dy = 13.247\u00b5m, z: 100 pixel, dz = 5.079\u00b5m.\u003C\/p\u003E\n","format":"txt","state":"Active","revision_timestamp":"Thu, 11\/28\/2024 - 15:25","name":"Figure5_05_model","mimetype":"text\/plain","size":"886.69 KB","created":"Wed, 11\/27\/2024 - 09:47","resource_group_id":"ee65a14f-0fc2-40e9-a4ba-e85030fe5102","last_modified":"Date changed  Thu, 11\/28\/2024 - 15:25"},{"id":"b1a075ae-87f7-4de1-8f66-729d2ed70285","revision_id":"","url":"https:\/\/rdpcidat.rub.de\/sites\/default\/files\/fig5_15_exp.txt","description":"\u003Cp\u003EMeasured and modeled 2d resolved atomic oxygen density for different admixtures. The cavities are located at z = 0mm. Contour lines indicate exemplary densities for the comparability of model and experiment. Conditions: 1slm total gas flow (He+O2); 700V amplitude; d = 200\u00b5m (left) \/ 150\u00b5m (right) cavity diameter; z-step = 50\u00b5m; gate time = 30ns; total exposure time = 60s.\u003C\/p\u003E\n\u003Cp\u003EEXP resolution: y: 1020 pixel, dy = 13\u00b5m, z: 46 pixel, dz = 50\u00b5m.\u003Cbr \/\u003E\nModel resolution: y: 501 pixel, dy = 13.247\u00b5m, z: 100 pixel, dz = 5.079\u00b5m.\u003C\/p\u003E\n","format":"txt","state":"Active","revision_timestamp":"Thu, 11\/28\/2024 - 15:26","name":"Figure5_15_exp","mimetype":"text\/plain","size":"771.5 KB","created":"Wed, 11\/27\/2024 - 09:47","resource_group_id":"ee65a14f-0fc2-40e9-a4ba-e85030fe5102","last_modified":"Date changed  Thu, 11\/28\/2024 - 15:26"},{"id":"411b86f6-f442-443b-b7a2-ff81cd8f425e","revision_id":"","url":"https:\/\/rdpcidat.rub.de\/sites\/default\/files\/fig5_15_model.txt","description":"\u003Cp\u003EMeasured and modeled 2d resolved atomic oxygen density for different admixtures. The cavities are located at z = 0mm. Contour lines indicate exemplary densities for the comparability of model and experiment. Conditions: 1slm total gas flow (He+O2); 700V amplitude; d = 200\u00b5m (left) \/ 150\u00b5m (right) cavity diameter; z-step = 50\u00b5m; gate time = 30ns; total exposure time = 60s.\u003C\/p\u003E\n\u003Cp\u003EEXP resolution: y: 1020 pixel, dy = 13\u00b5m, z: 46 pixel, dz = 50\u00b5m.\u003Cbr \/\u003E\nModel resolution: y: 501 pixel, dy = 13.247\u00b5m, z: 100 pixel, dz = 5.079\u00b5m.\u003C\/p\u003E\n","format":"txt","state":"Active","revision_timestamp":"Thu, 11\/28\/2024 - 15:26","name":"Figure5_15_model","mimetype":"text\/plain","size":"880.73 KB","created":"Wed, 11\/27\/2024 - 09:49","resource_group_id":"ee65a14f-0fc2-40e9-a4ba-e85030fe5102","last_modified":"Date changed  Thu, 11\/28\/2024 - 15:26"},{"id":"a599dbe0-bdf1-412e-947e-d024105acca8","revision_id":"","url":"https:\/\/rdpcidat.rub.de\/sites\/default\/files\/Figure7.csv","description":"\u003Cp\u003EAdmixture variation for TALIF measurement compared to basic diffusion model based on actinometry measurements. A correction factor of 0.08 is applied to account for the surface losses neglected in the model. Conditions: 1slm total gas flow (He+O2); 700V amplitude; d = 200\u00b5m\/150\u00b5m cavity diameter; z = 350\u00b5m distance from grid surface; gate time = 30ns; total exposure time = 60s.\u003C\/p\u003E\n","format":"csv","state":"Active","revision_timestamp":"Thu, 11\/28\/2024 - 15:26","name":"Figure7","mimetype":"text\/csv","size":"777 bytes","created":"Wed, 11\/27\/2024 - 09:54","resource_group_id":"ee65a14f-0fc2-40e9-a4ba-e85030fe5102","last_modified":"Date changed  Thu, 11\/28\/2024 - 15:26"}],"tags":[{"id":"23fee867-bed4-469b-ba12-766621690038","vocabulary_id":"2","name":"A6"},{"id":"4573ac2f-5122-470d-9d55-2b443aff0a43","vocabulary_id":"2","name":"absolute atomic oxygen densities"},{"id":"ed82cd7d-1167-4275-98cf-83d359162ee1","vocabulary_id":"2","name":"TALIF"},{"id":"d44bdd04-45e4-4f86-b721-740db562822b","vocabulary_id":"2","name":"micro cavity plasma array"}],"groups":[{"description":"\u003Cp\u003EThe research will focus on the fundamentals of non-equilibrium plasmas and their interaction with the surrounding media such as solids or liquids using spectroscopic techniques.\u003C\/p\u003E\n","id":"ee65a14f-0fc2-40e9-a4ba-e85030fe5102","image_display_url":"https:\/\/rdpcidat.rub.de\/sites\/default\/files\/logorub_weiss_0.gif","title":"PIP","name":"group\/pip"}]}]}