Measurement of ion beam angular distribution at different helium gas pressures in a plasma focus device by large-area polycarbonate detectors
- Авторы: Sohrabi M.1, Habibi M.1, Ramezani V.1
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Учреждения:
- Energy Engineering and Physics Department
- Выпуск: Том 43, № 2 (2017)
- Страницы: 196-201
- Раздел: Plasma Diagnostics
- URL: https://journals.rcsi.science/1063-780X/article/view/186456
- DOI: https://doi.org/10.1134/S1063780X17020143
- ID: 186456
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Аннотация
The paper presents an experimental study and analysis of full helium ion density angular distributions in a 4-kJ plasma focus device (PFD) at pressures of 10, 15, 25, and 30 mbar using large-area polycarbonate track detectors (PCTDs) (15-cm etchable diameter) processed by 50-Hz-HV electrochemical etching (ECE). Helium ion track distributions at different pressures, in particular, at the main axis of the PFD are presented. Maximum ion track density of ~4.4 × 104 tracks/cm2 was obtained in the PCTD placed 6 cm from the anode. The ion distributions for all pressures applied are ring-shaped, which is possibly due to the hollow cylindrical copper anode used. The large-area PCTD processed by ECE proves, at the present state-of-theart, a superior method for direct observation and analysis of ion distributions at a glance with minimum efforts and time. Some observations of the ion density distributions at different pressures are reported and discussed.
Об авторах
M. Sohrabi
Energy Engineering and Physics Department
Email: mortezahabibi@gmail.com
Иран, Tehran
M. Habibi
Energy Engineering and Physics Department
Автор, ответственный за переписку.
Email: mortezahabibi@gmail.com
Иран, Tehran
V. Ramezani
Energy Engineering and Physics Department
Email: mortezahabibi@gmail.com
Иран, Tehran