||Positive and negative ion emission from microdroplets by MeV energy ions
Majima, T. ,
Kitajima, K. ,
Oonishi, Y. ,
Ueda, H. ,
Tsuchida, H.Itoh, A.
Journal of Physics: Conference Series
6352015-09-07 , Institute of Physics Publishing
XXIX International Conference on Photonic, Electronic, and Atomic Collisions (ICPEAC2015): 22–28 July 2015, Toledo, Spain
We have developed a new experimental setup that allowed us to study collision interactions between fast ion beams and liquid droplets under a vacuum condition. Droplets of water and ethanol are irradiated with 0.4-1.5 MeV H+ and 2.0 MeV C2+ ions. The droplet diameter is estimated from energy loss measurements of projectile ions penetrating through droplets. Time-of-flight mass spectra of positive and negative secondary ions exhibit a series of cluster ions generated via protonation and deprotonation.