Science@FELs 2014

Session

Theory

Sep 16, 2014, 2:00 PM

WHGA/001 (Paul Scherrer Institute)

100. Transitions in matter triggered by intense ultrashort X-ray pulses

Prof. Beata Ziaja-Motyka

9/16/14, 2:00 PM

1. Soft X-ray ionisation of atoms within TDDFT and nuclear effects on the attosecond TRPES of ethylene

Mrs Alison Crawford (Nano Bio Spectroscopy Group, UPV/EHU)

9/16/14, 2:35 PM

Theory

Contributed Talk

First, I will demonstrate the capabilities of time-dependent density functional theory (TDDFT) for strong-field, short wavelength (soft X-ray) physics, as compared to a formalism based on rate equations. TDDFT provides a very good description of the total and individual ionization yields for Ne and Ar atoms exposed to strong laser pulses over a wide range of intensities. Second, using TDDFT...

14. XMDYN: Modeling radiation damage of XFEL irradiated samples

Zoltan Jurek (Center for Free-Electron Laser Science, DESY; Hamburg Centre for Ultrafast Imaging)

9/16/14, 3:00 PM

Theory

Contributed Talk

High-resolution x-ray imaging of nanosize biological samples is one of the most important goals of the research with X-ray free electron lasers (XFEL) [1]. Outstanding results have already been achieved in serial nano-crystallography [2]. There has been also a significant progress in the field of single particle imaging [3]. However, radiation damage is still a limiting factor, in particular...

33. Atomic kinetics in solids under strong XFEL irradiation

Mr Basil Deschaud (CELIA - Université de Bordeaux)

9/16/14, 3:25 PM

Theory

Contributed Talk

The role of elementary processes during interaction of short XUV free-electron laser pulses with solid material is studied by means of a specific collisional radiative model (CRM) without spatial dimension applied to solid aluminum. The calculation of the energy deposition requires a proper model for the bound electron kinetics as the pulse is mainly absorbed via photoionization of bound...