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New PDF release: Atomic Processes in Electron-Ion and Ion-Ion Collisions

By D. L. Moores (auth.), F. Brouillard (eds.)

ISBN-10: 146845224X

ISBN-13: 9781468452242

ISBN-10: 1468452266

ISBN-13: 9781468452266

Four years after a primary assembly in BADDECK, Canada, at the Physics of Ion-Ion and Electron-Ion collisions, a moment Nato complex learn Institute, in HAl~/Lesse, Belgium, reexamined the topic which had turn into virtually a brand new one, in attention of the numerous very important advancements that had occured in the meanwhile. The advancements were relatively awesome in parts : the di-electronic recombination of electrons with ions and the collisional techniques of mUltiply charged ions. For dielectronic recombination, a big occasion was once the obtainment, in 1983, of the 1st experimental facts. This supplied, ultimately, a non speculative foundation for the learn of that problematic and sophisticated procedure and strongly motivated the theoretical actions. Multiply charged ions, nevertheless, became well known, because of the improvement of robust ion resources. This situation, including a urgent call for from thermonuclear learn for ionisation and cost alternate move sections, has prompted systematic experimental investigations and new theoretical reports, that have contributed to significantly magnify, during the last 5 years, our knowing of the collisional techniques of multiply charged ions. Dielectronic recombination and multiply charged ions have been accordingly valuable issues within the programme of the A.S.I. in HAN/Lesse and are given a corresponding emphasis within the current book.

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Additional resources for Atomic Processes in Electron-Ion and Ion-Ion Collisions

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However. it has become increasingly clear in recent years that the influence of even a small applied electric field can cause a serious perturbation on the system. It is therefore important 23 to incorporate density and field effects into the atomic data one generates. Atomic processes which produce radiation are: (i) (ii) e-I collisional excitation and subsequent ~adiative decay I-I collisional excitation and subsequent radiative decay (iii) radiative capture in e-I collisionsj both radiative recombination and (iv) (v) dielectronic recombination bremsstrahlung in e-I collisions charge exchange to excited states in I-I collisions and subsequent radiative decay (vi) collisional energy exchange in I-I collisions and decay.

0 • outer-shell electrcn excitation: again we consider the In this case 2 1s 2s V a + kc ) c ~ (d) (i) (60) TheN, are a double infinity of intermediate states to consider. nt. 3. As an example. w~ take (d) (d) 1s23d4d - = 1s23d4d. te 1s 2 3P3d does not contribute. 41 r On the other hand. the a are more involvedj in the Cab) coupling scheme. we have for the initial state i=1s22s. 17 Ry. ) (63) so that. 59 Ry. 26{+12) ,eto. (65) The AMA calculation is muct. simpler. while other coupling schemes are also possible.

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Atomic Processes in Electron-Ion and Ion-Ion Collisions by D. L. Moores (auth.), F. Brouillard (eds.)

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