Momentum imaging of dissociative electron attachment in biologically relevant molecules

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

Weyland, Marvin^1,2 ; Ren, Xueguang^1,2 ; Pflüger, Thomas^1,2 ; Dornt, Alexander^2 ; Baek, Woon Yong^1 ; Rabus, Hans^1

Physikalisch-Technische Bundesanstalt, Bundesallee 100, Braunschweig

38116, Germany^1

Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, Heidelberg

69117, Germany^2

关键词: Biologically relevant molecules;    Dissociative electron attachment;    Fragment mass;    High resolution;    Impact energy;    Momentum imaging;    Projectile energy;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/635/7/072013/pdf
DOI  :  10.1088/1742-6596/635/7/072013

来源: IOP

【 摘 要 】

We measured dissociative electron attachment in biologically relevant molecules using momentum imaging for negative ions in an apparatus that combines high resolutions of impact energy, fragment mass and fragment momentum. First investigations of the production of NH2--ions around the A1resonance at 5.7 eV impact energy show a clear dependence of the distribution of fragment dissociation angles on the projectile energy.