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A diagnostic for quantifying secondary species emission from electrospray devices.
Uchizono, N M; Wirz, R E; Collins, A L; Marrese-Reading, C; Arestie, S M; Ziemer, J K.
Afiliación
  • Uchizono NM; Plasma and Space Propulsion Laboratory, Department of Mechanical and Aerospace Engineering, University of California, Los Angeles, 420 Westwood Plaza, Los Angeles, California 90095, USA.
  • Wirz RE; Plasma and Space Propulsion Laboratory, Department of Mechanical and Aerospace Engineering, University of California, Los Angeles, 420 Westwood Plaza, Los Angeles, California 90095, USA.
  • Collins AL; Plasma and Space Propulsion Laboratory, Department of Mechanical and Aerospace Engineering, University of California, Los Angeles, 420 Westwood Plaza, Los Angeles, California 90095, USA.
  • Marrese-Reading C; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109, USA.
  • Arestie SM; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109, USA.
  • Ziemer JK; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109, USA.
Rev Sci Instrum ; 94(2): 025008, 2023 Feb 01.
Article en En | MEDLINE | ID: mdl-36859065
Measuring the polydisperse beam of charged species emitted by an electrospray device requires accurate measurements of current. Secondary species emission (SSE) caused by high-velocity nanodroplet or molecular ion impacts on surfaces contributes to substantial uncertainty in current measurements. SSE consists of both positive and negative species; hence, mitigating measurement uncertainty requires different considerations other than plasma diagnostic techniques. The probe and analysis methods described herein distinguish between current contributions from positive SSE, negative SSE, and primary species. Separating each contribution provides positive and negative SSE yield measurements and corrected current measurements that reflect the true primary current. Sources of measurement uncertainty in probe design are discussed, along with appropriate mitigation methods. The probe and analysis techniques are demonstrated on an ionic liquid electrospray operating in a droplet emission mode to obtain an angular distribution of positive and negative SSE yields for an ionic liquid electrospray.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Diagnostic_studies Idioma: En Revista: Rev Sci Instrum Año: 2023 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Diagnostic_studies Idioma: En Revista: Rev Sci Instrum Año: 2023 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos