Aerosol nucleation induced by a high energy particle beam
Article first published online: 12 MAY 2011
Copyright 2011 by the American Geophysical Union.
Geophysical Research Letters
Volume 38, Issue 9, 16 May 2011
How to Cite
2011), Aerosol nucleation induced by a high energy particle beam, Geophys. Res. Lett., 38, L09805, doi:10.1029/2011GL047036., , , , and (
- Issue published online: 12 MAY 2011
- Article first published online: 12 MAY 2011
- Manuscript Accepted: 31 MAR 2011
- Manuscript Revised: 25 MAR 2011
- Manuscript Received: 8 FEB 2011
- sulfuric acid
 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.