X-ray Doppler spectroscopy of ultrafast fragmentation
2004 (English)In: Chemical Physics, ISSN 0301-0104, E-ISSN 1873-4421, Chem. Phys., Vol. 299, 253-258 p.Article in journal (Refereed) Published
Doppler effects are now commonly observed for Auger resonances of dissociating atoms in randomly oriented molecules. The physics behind the, yet not observed, Doppler effect for fixed-in-space molecules is different in that there will appear extra Doppler resonances resulting from the diffractional scattering of the Auger electrons by the surrounding atoms. It is argued that as these resonances will show maxima in the bond directions their measurement by current energy and angular resolved electron-ion coincidence experiments will provide structural probing. It is also shown that the electronic Doppler effect caused by nuclear vibrations can be observed also for bound nuclear states making use of electron-ion coincidence measurements. Optimal conditions for such measurements prevail when the scattering duration is comparable with a vibrational period.
Place, publisher, year, edition, pages
2004. Vol. 299, 253-258 p.
33.70.Ca; 33.80.Eh; 34.50.Gb; Doppler effect; Ultrafast fragmentation; X-ray spectroscopy
IdentifiersURN: urn:nbn:se:kth:diva-5493DOI: 10.1016/j.chemphys.2003.11.017ISI: 000220525200012ScopusID: 2-s2.0-1642414131OAI: oai:DiVA.org:kth-5493DiVA: diva2:9876
QC 201009062006-03-152006-03-152010-09-06Bibliographically approved