Plasma current sheath dynamics and energy dissipation in a low-energy plasma focus device
Joint Authors
Lashin, Ahmad A.
Allam, Tariq M.
al-Sayyid, Hana A.
Ward, Sayyid A.
Abu al-Ata, Muhammad Anwar
Sulayman, Hana M.
Ahmad, Kamal M.
Source
Arab Journal of Nuclear Sciences and Applications
Issue
Vol. 53, Issue 1 (31 Jan. 2020), pp.222-233, 12 p.
Publisher
The Egyptian Society of Nuclear Science and Applications
Publication Date
2020-01-31
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
This paper reports the measurements of plasma current sheath (PCS) dynamics, the energy dissipation processes, and the plasma focus (PF) electrical characteristics, particularly during the axial phase discharge in a Mather-type PF device (EAEA-PF1) energized with a 30 µF capacitor bank charged with 8, 10 and 12 kV.
All these works are carried out under discharge conditions where the optimal PF action is achieved.
At each charging voltage (Vch), 8 kV, 10 kV and 12 kV, the optimal PF action is studied for different Argon gas pressures (P) ranging from 0.4 to 1.2 Torr.
The results show that the best PF is formed at Vch = 8 kV and P = 0.6 Torr, Vch = 10 kV and P = 0.8 Torr, and Vch = 12 kV and P = 0.8 Torr.
The implosion velocity (Vz) results of PCS show that the maximum value of Vz (4.48 cm/µs) occurs at the end of the axial phase (i.e., at the coaxial electrode muzzle), which is detected at Vch = 12 kV and P = 0.8 Torr.
Moreover, a less inefficient snowplow action is observed under these discharge conditions.
The energy dissipation process data indicate that at Vch = 12 kV and P = 0.8 Torr, the ratio between the total energy dissipation and the input energy has a maximum value of ≅ 90%, and the minimum residual energy left on the condenser bank (175.39 J) is also achieved under these discharge conditions.
American Psychological Association (APA)
Lashin, Ahmad A.& Allam, Tariq M.& al-Sayyid, Hana A.& Ahmad, Kamal M.& Ward, Sayyid A.& Abu al-Ata, Muhammad Anwar…[et al.]. 2020. Plasma current sheath dynamics and energy dissipation in a low-energy plasma focus device. Arab Journal of Nuclear Sciences and Applications،Vol. 53, no. 1, pp.222-233.
https://search.emarefa.net/detail/BIM-975123
Modern Language Association (MLA)
Ahmad, Kamal M.…[et al.]. Plasma current sheath dynamics and energy dissipation in a low-energy plasma focus device. Arab Journal of Nuclear Sciences and Applications Vol. 53, no. 1 (2020), pp.222-233.
https://search.emarefa.net/detail/BIM-975123
American Medical Association (AMA)
Lashin, Ahmad A.& Allam, Tariq M.& al-Sayyid, Hana A.& Ahmad, Kamal M.& Ward, Sayyid A.& Abu al-Ata, Muhammad Anwar…[et al.]. Plasma current sheath dynamics and energy dissipation in a low-energy plasma focus device. Arab Journal of Nuclear Sciences and Applications. 2020. Vol. 53, no. 1, pp.222-233.
https://search.emarefa.net/detail/BIM-975123
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 231-233
Record ID
BIM-975123