The BepiColombo SERENA/ELENA unit development: a new technique to detect sputtered neutral atoms escaping from Mercury surface (Abstract/Comunicazione in atti di convegno)

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Label
  • The BepiColombo SERENA/ELENA unit development: a new technique to detect sputtered neutral atoms escaping from Mercury surface (Abstract/Comunicazione in atti di convegno) (literal)
Anno
  • 2010-01-01T00:00:00+01:00 (literal)
Alternative label
  • Andrea Maria Di Lellis (2); Stefano Selci (3); Elisabetta De Angelis (1); Roberto Leoni (4); Anna Milillo (1); Stefano Orsini (1); Iannis Dandouras (5); ELENA Team (2010)
    The BepiColombo SERENA/ELENA unit development: a new technique to detect sputtered neutral atoms escaping from Mercury surface
    in 7th EGU General Assembly, Vienna, Austria, 02 - 07 May, 2010
    (literal)
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  • Andrea Maria Di Lellis (2); Stefano Selci (3); Elisabetta De Angelis (1); Roberto Leoni (4); Anna Milillo (1); Stefano Orsini (1); Iannis Dandouras (5); ELENA Team (literal)
Pagina inizio
  • EGU2010-13958-4 (literal)
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  • http://meetings.copernicus.org/egu2010/ (literal)
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  • 12 (literal)
Rivista
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  • In: EGU2010 - European Geosciences Union, General Assembly 2010 (Vienna, Austria, 02-07 May 2010). Abstract, article n. EGU2010-13958-4. (Geophysical Research Abstracts, vol. 12). Author(s), 2010. (literal)
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  • 1 (literal)
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  • ELENA (Emitted Low-Energy Neutral Atoms) is one of the four units of the SERENA experiment for the ESAcornerstone BepiColombo mission to Mercury. It is primarily devoted to understanding of Ion Sputtering processesand emission from planetary surfaces, particle back-scattering and Charge Exchange via neutral atoms detectionsin the energy range ¢ 20 eV - 5 keVELENA instrument is the first attempt of a new design techniques approached for the neutral particles identificationin the low energy range. It is a Time-of-Flight system based on a peculiar Start section: an oscillating shutter(operated at frequencies up to a 100 kHz) and mechanical grating (two self-standing silicon nitride (Si3N4)membranes, patterned with arrays of long and narrow openings) that allows to identify the start time of theparticles entering in the Time-of-Flight chamber. The Stop section at the end of the pattern is a 1-dimensionalarray composed by MCPs detector with discrete anodes corresponding to a Field of View of 4,5°x76°. This systemallows having the determination of velocity and direction of the incoming particles.The instrument has a good capability to reject UV photons with the start section and to reject charged particle witha deflector system.In this paper the crucial parts of the instrument and test results will be described: the nano-structure membranesmanufacturing, the shuttering system, the position encoder, the optical propriety of the membranes, the photonand particle test, the electronic box. (literal)
Note
  • Abstract (literal)
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  • (1) IFSI-INAF, ROME, Italy (2) AMDL srl, ROME Italy (3) ISC-CNR, ROME Italy (4) IFN-CNR, ROME, Italy (5) Centre d'Etude Spatiale des Rayonnements, Toulouse France (literal)
Titolo
  • The BepiColombo SERENA/ELENA unit development: a new technique to detect sputtered neutral atoms escaping from Mercury surface (literal)
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