Diffraction effects in the Recoil-Frame Photoelectron Angular Distributions of Halomethanes

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

Bomme, Cédric^1 ; Anielski, Denis^1,2 ; Savelyev, Evgeny^1 ; Boll, Rebecca^1,2 ; Erk, Benjamin^1 ; Bari, Sadia^3 ; Viefhaus, Jens^1 ; Stener, Mauro^4 ; Decleva, Piero^4 ; Rolles, Daniel^1,5

Deutsches Electronen-Synchrotron(DESY), Hamburg, Germany^1

Max-Planck-Institut F. Kernphysik, Heidelberg, Germany^2

European XFEL GmbH, Hamburg, Germany^3

Universita' di Trieste, Trieste, Italy^4

J. R. MacDonald Laboratory, Department of Physics, Kansas State University, Manhattan

KS, United States^5

关键词: Diffraction effects;    Gasphase;    Halomethanes;    Inner shell photoionization;    Molecular geometries;    Photoelectron angular distributions;    Photoelectron energy;    Solid angle;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/635/11/112020/pdf
DOI  :  10.1088/1742-6596/635/11/112020

来源: IOP

【 摘 要 】

We have measured the Recoil Frame-Photoelectron Angular Distributions (RF-PADs) for inner-shell photoionization of CH3F, CH3I and CF3I halomethane molecules for photoelectron energies up to 300 eV detected within a 4π solid angle in the gas-phase. For high kinetic energies, the RF-PADs are dominated by diffraction effects that encode information on the molecular geometry.