Atomic, Molecular and Cluster Science with the Reaction Microscope Endstation at FLASH2

Applied Sciences

Rolf Treusch¹  Markus Braune¹  Florian Trost²  Thomas Pfeifer²  Severin Meister²  Robert Moshammer²  Hannes Lindenblatt²  Kirsten Schnorr³  Sven Augustin³ 

[1] Deutsches Elektronen-Synchrotron, 22607 Hamburg, Germany;Max-Planck-Institute for Nuclear Physics, 69117 Heidelberg, Germany;Paul Scherrer Institute, 5232 Villigen, Switzerland;

关键词: atom;    molecule;    REMI;    endstation;    FLASH;   

DOI  :  10.3390/app10082953

来源: DOAJ

【 摘 要 】

The reaction microscope (REMI) endstation for atomic and molecular science at the free-electron laser FLASH2 at DESY in Hamburg is presented together with a brief overview of results recently obtained. The REMI allows coincident detection of electrons and ions that emerge from atomic or molecular fragmentation reactions in the focus of the extreme-ultraviolet (XUV) free-electron laser (FEL) beam. A large variety of target species ranging from atoms and molecules to small clusters can be injected with a supersonic gas-jet into the FEL focus. Their ionization and fragmentation dynamics can be studied either under single pulse conditions, or for double pulses as a function of their time delay by means of FEL-pump–FEL-probe schemes and also in combination with a femtosecond infrared (IR) laser. In a recent upgrade, the endstation was further extended by a light source based on high harmonic generation (HHG), which is now available for upcoming FEL/HHG pump–probe experiments.

【 授权许可】

Unknown