Date:
Mon, 27/02/201716:00-17:00
Location:
Kaplun building, Room No. 200
Lecturer: Dr. Hitesh Rahangdale
Affiliation: Saha Institute of Nuclear Physics
Abstract:
Electron impact excitation is established as an important probe for exploring the structure of matter. While penetrating through matter, electrons su_er collisions and generate secondary particles such as electrons or X-rays. By observing X-rays from electron-atom collision experiments various phenomenon can be studied, such as bremsstrahlung process, alignment studies of various atomic subshells, or inner-shell ionization and vacancy production. In this regard, electron-atom collisions leading to the ionization of K(1s½) shell and related transitions are extensively studied and are very well explained by theories, but fewer studies exist for the L (2s; 2p etc.) and M (3s; 3p etc.) shell ionization. In this talk, I shall discuss the subshell speci_c L shell ionization studies of high Z elements along with the experimental details and related simulations necessary to obtain the absolute ionization cross-sections. Finally, I shall present the obtained experimental results and their interpretation in the light of well-established theories.
Affiliation: Saha Institute of Nuclear Physics
Abstract:
Electron impact excitation is established as an important probe for exploring the structure of matter. While penetrating through matter, electrons su_er collisions and generate secondary particles such as electrons or X-rays. By observing X-rays from electron-atom collision experiments various phenomenon can be studied, such as bremsstrahlung process, alignment studies of various atomic subshells, or inner-shell ionization and vacancy production. In this regard, electron-atom collisions leading to the ionization of K(1s½) shell and related transitions are extensively studied and are very well explained by theories, but fewer studies exist for the L (2s; 2p etc.) and M (3s; 3p etc.) shell ionization. In this talk, I shall discuss the subshell speci_c L shell ionization studies of high Z elements along with the experimental details and related simulations necessary to obtain the absolute ionization cross-sections. Finally, I shall present the obtained experimental results and their interpretation in the light of well-established theories.