Analytical Study of The Effect of Loss Processes on Laser Induced Breakdown in Argon Gas

Authors

  • Bassam Ghazolin

Abstract

 

In the present work, a modification of a previously developed electron cascade model is presented. More than one electronic state is incorporated in the model as well as various loss processes. Thus, new inelastic process such as photo ionization and electron impact ionization of the electronic excited state of the argon atom are considered. Moreover, loss processes which may act to deplete the number of electron such as electron diffusion; three body recombination and dissociate recombination are taken into account. All these processes are incorporated into the time-dependent Boltzmann equation which is solved numerically simultaneously with set of rate equations for both the electron energy distribution function (EEDF) and the excited state population respectively.

في هذه الدراسة طورنا، بشكل واضح، نموذج الالكترونات المتعاقبة، فضلاً عن ذلك أكثر من مجموعة سويات طاقية، وكذلك مختلف أنواع عمليات الفقد. وهكذا الخواص الجديدة غير المرنة، مثل: التأين الضوئي والتأين بالتصادم التعاقبي للسويات المثارة لذرات غاز الأرغون المدروسة. إن عمليات الفقد التي من الممكن أن تؤثر في تقليل عدد الالكترونات مثل تبعثر أو تشتت الالكترونات من الحجم البؤري، إعادة التوحيد ثلاثي الجسيمات، وإعادة التكوين التفككي جمعيها أخذت بالاعتبار. وكل هذه الخواص مدمجة بمعادلة بولتزمان المتغيرة مع الزمن، و التي حلت بشكل عددي ومتزامن مع وضع معدل دالة توزيع الإلكترونات وتابع التوزع الالكتروني للحالة المثارة يشكل متعاقب

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Published

2014-04-15

How to Cite

1.
Ghazolin B. Analytical Study of The Effect of Loss Processes on Laser Induced Breakdown in Argon Gas. TUJ-BA [Internet]. 2014Apr.15 [cited 2024Apr.16];36(2). Available from: https://journal.tishreen.edu.sy/index.php/bassnc/article/view/790

Issue

Vol. 36 No. 2 (2014): العلوم الأساسية

Section

Articles

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