Ambipolar diffusion in direct-current positive column with variations in radius of discharge tube
CHINESE PHYSICS LETTERS, cilt.23, sa.9, ss.2498-2501, 2006 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 23 Sayı: 9
- Basım Tarihi: 2006
- Doi Numarası: 10.1088/0256-307x/23/9/041
- Dergi Adı: CHINESE PHYSICS LETTERS
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.2498-2501
- Orta Doğu Teknik Üniversitesi Adresli: Hayır
Özet
The ambipolar diffusion and argon ion mobility as functions of the reduced electric field and pressure times the tube radius are investigated in a weakly ionized non-uniform glow discharge plasma system. In particular, the variable cross section at the same discharge tube on the ambipolar diffusion coefficient shows a more noticeable effect than the effects from the ion mobility. As the diffusion length Lambda increases, the ambipolar diffusion D-a increases. However, it decreases as the discharge current is increased.