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Electron Impact Excitation-Ionizatio...

Ali, Esam Abobakr A.

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Electron Impact Excitation-Ionization of Molecules.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Electron Impact Excitation-Ionization of Molecules./
作者:	Ali, Esam Abobakr A.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2017,
面頁冊數:	229 p.
附註:	Source: Dissertation Abstracts International, Volume: 78-12(E), Section: B.
Contained By:	Dissertation Abstracts International78-12B(E).
標題:	Physics. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10260152
ISBN:	9780355088182

Electron Impact Excitation-Ionization of Molecules.
Ali, Esam Abobakr A.

Electron Impact Excitation-Ionization of Molecules. - Ann Arbor : ProQuest Dissertations & Theses, 2017 - 229 p.

Source: Dissertation Abstracts International, Volume: 78-12(E), Section: B.

Thesis (Ph.D.)--Missouri University of Science and Technology, 2017.

In the last few decades, the study of atomic collisions by electron-impact has made significant advances. The most difficult case to study is electron impact ionization of molecules for which many approximations have to be made and the validity of these approximations can only be checked by comparing with experiment.

ISBN: 9780355088182Subjects--Topical Terms:

516296
Physics.

Electron Impact Excitation-Ionization of Molecules.
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500 $a Adviser: Don H. Madison.
502 $a Thesis (Ph.D.)--Missouri University of Science and Technology, 2017.
520 $a In the last few decades, the study of atomic collisions by electron-impact has made significant advances. The most difficult case to study is electron impact ionization of molecules for which many approximations have to be made and the validity of these approximations can only be checked by comparing with experiment.
520 $a In this thesis, I have examined the Molecular three-body distorted wave (M3DW) or Molecular four-body distorted wave (M4DW) approximations for electron-impact ionization. These models use a fully quantum mechanical approach where all particles are treated quantum mechanically and the post collision interaction (PCI) is treated to all orders of perturbation. These electron impact ionization collisions play central roles in the physics and chemistry of upper atmosphere, biofuel, the operation of discharges and lasers, radiation induced damage in biological material like damage to DNA by secondary electrons, and plasma etching processes.
520 $a For the M3DW model, I will present results for electron impact single ionization of small molecules such as Water, Ethane, and Carbon Dioxide and the much larger molecules Tetrahydrofuran, phenol, furfural, 1-4 Benzoquinone. I will also present results for the four-body problem in which there are two target electrons involved in the collision. M4DW results will be presented for dissociative excitation-ionization of orientated D2. I will show that M4DW calculations using a variational wave function for the ground state that included s- and p- orbital states give better agreement to the experimental measurements than a ground state approximated as a product of two 1s-type Dyson orbitals.
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