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Titel: Aerosol nucleation induced by a high energy particle beam
Type: Journal articleJournal article
Person(er):
Forfatter:  Enghoff, Martin Andreas Bødker (Cwisno: 38300)
Technical University of Denmark
Email:

Forfatter:  Pedersen, Jens Olaf Pepke (Cwisno: 38289)
Technical University of Denmark
Email:

Forfatter:  Uggerhøj, Ulrik I.
University of Aarhus, Department of Physics and Astronomy

Forfatter:  Paling, Sean M.
University of Sheffield, Department of Physics and Astronomy

Forfatter:  Svensmark, Henrik (Cwisno: 38287)
Technical University of Denmark
Email:

Uddrag: We have studied sulfuric acid aerosol nucleation in an atmospheric pressure reaction chamber using a 580 MeV electron beam to ionize the volume of the reaction chamber. We find a clear contribution from ion-induced nucleation and consider this to be the first unambiguous observation of the ion-effect on aerosol nucleation using a particle beam under conditions that resemble the Earth's atmosphere. By comparison with ionization using a gamma source we further show that the nature of the ionizing particles is not important for the ion-induced component of the nucleation. This implies that inexpensive ionization sources - as opposed to expensive accelerator beams - can be used for investigations of ion-induced nucleation.
Publiceret: in journal: Geophysical Research Letters (ISSN: 0094-8276) (DOI: http://dx.doi.org/10.1029/2011GL047036), vol: 38, pages: L09805, 2011
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