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Excitation And Ionization Of 6li Ions Following Beta-Decay Of 6he., Eva Schulhoff
Excitation And Ionization Of 6li Ions Following Beta-Decay Of 6he., Eva Schulhoff
Electronic Theses and Dissertations
6He beta-decays into 6Li causing an electronic rearrangement of the final 6Li atom. The calculations involve expanding the initial state of 6He in terms of a complete set of final states of 6Li. Correlated Hylleraas-like wave functions were used to create a pseudospectrum, which spans both the bound and continue states of 6Li. The sudden approximation with neglected recoil was used. Starting from the 1 1S1 and 2 3S1 initial configurations, the transitions to the final 6Li bound states, as well as the total probabilities of single and double ionization were calculated. The transition probabilities to bound states were compared …
Development Of A Coaxial Electron-Laser Beam Collision Experiment, Justin Teeuwen
Development Of A Coaxial Electron-Laser Beam Collision Experiment, Justin Teeuwen
Electronic Theses and Dissertations
An electron optical system which propagates an electron beam coaxially with a laser was designed, developed and tested. Greatly improved signal rates were obtained when excitation of various target species under electron impact was studied. Measurements of excitation in nitrogen, specifically the (0,0) second positive band of N2 and (0,1) first negative band of N2 are made and compared with well-known previous results to calibrate the system. Emission cross section measurements were made by direct excitation of a number of argon transitions, including the 3p5 4p [1 1/2] (J=1) -> 3p5 4s [1/2] (J=0) transition. Comparison with previous results showed …