{"doi":"10.1063/1.3112702","title":"Measurements of electric charge and screening length of microparticles in a plasma sheath","abstract":"<jats:p>An experiment is described in which microparticles are levitated within a rf sheath above a conducting plate in argon plasma. The microparticles forming a two-dimensional crystal structure are considered to possess Debye screening Coulomb potential ϕ(r)=(Q/4πε0r)exp(−r/λ), where Q is the electric charge, r is distance, and λ is the screening length. When the crystal structure is slanted with an angle θ, a particle experiences a force Mg sin θ, where M is the mass of the particle and g is acceleration due to gravity, which must be equal to the Debye screened Coulomb force from other particles. By changing θ, relations for λ(Q) are measured. The screening length λ and Q are determined uniquely from the crossing points of several relations. The electric charge Q is also estimated from a floating potential measured with a probe. The measured λ is nearly equal to an ion Debye length.</jats:p>","journal":"Physics of Plasmas","year":2009,"id":591079,"datarank":0.8527184703407016,"base_score":2.70805020110221,"endowment":2.70805020110221,"self_citation_contribution":0.40620753016533157,"citation_network_contribution":0.44651094017537,"self_endowment_contribution":0.40620753016533157,"citer_contribution":0.44651094017537,"corpus_percentile":null,"corpus_rank":null,"citation_count":14,"citer_count":10,"citers_with_citation_signal":9,"citers_with_endowment":9,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":null,"is_data_producer":false,"deposit_databanks":null,"is_oa":false,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":null,"fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":1512238,"name":"O. Ishihara","orcid":null,"position":1,"is_corresponding":false},{"id":1398854,"name":"Y. Nakamura","orcid":"0000-0002-6531-9018","position":0,"is_corresponding":false}],"reference_count":0,"raw_metadata":{"has_enrichment":true,"resolved":true,"title":"Measurements of electric charge and screening length of microparticles in a plasma sheath","abstract":"<jats:p>An experiment is described in which microparticles are levitated within a rf sheath above a conducting plate in argon plasma. The microparticles forming a two-dimensional crystal structure are considered to possess Debye screening Coulomb potential ϕ(r)=(Q/4πε0r)exp(−r/λ), where Q is the electric charge, r is distance, and λ is the screening length. When the crystal structure is slanted with an angle θ, a particle experiences a force Mg sin θ, where M is the mass of the particle and g is acceleration due to gravity, which must be equal to the Debye screened Coulomb force from other particles. By changing θ, relations for λ(Q) are measured. The screening length λ and Q are determined uniquely from the crossing points of several relations. The electric charge Q is also estimated from a floating potential measured with a probe. The measured λ is nearly equal to an ion Debye length.</jats:p>","is_dataset_classified":null,"base_score":2.70805020110221,"endowment":2.70805020110221,"datacite_reuse_total":0,"file_count":0,"downloads":0,"views":0,"has_version_chain":false,"is_dataset":false,"is_oa":false,"pmid":"26657633","pmcid":null,"openalex_id":"https://openalex.org/W1965498063","authors":[],"funders":[],"total_grants":0,"fwci":1.1365,"citation_percentile":0.76074234,"influential_citations":0,"citation_trend":[{"year":2012,"count":3},{"year":2013,"count":2},{"year":2016,"count":1},{"year":2017,"count":1},{"year":2018,"count":2},{"year":2019,"count":1},{"year":2020,"count":2}],"oa_status":"closed","license":null,"oa_locations":[{"url":"https://pubs.aip.org/aip/pop/article-pdf/doi/10.1063/1.3112702/15932764/043704_1_online.pdf","host_type":"publisher"},{"url":"https://doi.org/10.1063/1.3112702","host_type":"journal"}],"fields_of_study":["Dust and Plasma Wave Phenomena","Ionosphere and magnetosphere dynamics","Plasma Diagnostics and Applications"],"mesh_terms":[],"keywords":["Debye length","Physics","Debye","Debye sheath","Plasma","Coulomb","Atomic physics","Electric potential","Charge (physics)","Electric charge","Particle (ecology)","Screening effect","Dusty plasma","Ion","Condensed matter physics","Electron","Voltage","Quantum mechanics"],"sdg_mappings":[],"linked_datasets":[],"clinical_trials":[],"software_tools":[],"database_accessions":[],"source":"live","citation_network_status":"fetched"},"created_at":"2026-07-25T14:12:50.137391Z","pmid":null,"pmcid":null,"fwci":null,"citation_percentile":null,"influential_citations":0,"oa_status":null,"license":null,"views":0,"total_file_size_bytes":0,"version_count":0,"fair_f":null,"fair_a":null,"fair_i":null,"fair_r":null,"fair_zscore":null,"fair_rationale":null,"fair_model":null,"fair_agent_version":null,"fair_fulltext_source":null,"fair_has_llm":null,"fair_computed_at":null,"clinical_trials":[],"software_tools":[],"db_accessions":[],"linked_datasets":[],"topics":[]}