Positive and negative ion emission from microdroplets by MeV energy ions

29th International Conference on Photonic, Electronic, and Atomic Collisions

Majima, T.^1 ; Kitajima, K.^2 ; Oonishi, Y.^2 ; Ueda, H.^2 ; Tsuchida, H.^1,2 ; Itoh, A.^1,2

Quantum Science and Engineering Center, Kyoto University, Uji

611-0011, Japan^1

Department of Nuclear Engineering, Kyoto University, Kyoto

615-8540, Japan^2

关键词: Collision interaction;    Droplet diameters;    Liquid droplets;    Loss measurement;    Micro droplets;    Projectile ions;    Time-of-flight mass spectra;    Vacuum condition;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/635/3/032018/pdf
DOI  :  10.1088/1742-6596/635/3/032018

来源: IOP

【 摘 要 】

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.