نوع مقاله : مقاله پژوهشی
نویسندگان
پژوهشکده پلاسما و گداخت هستهای، پژوهشگاه علوم و فنون هستهای، سازمان انرژی اتمی ایران، صندوق پستی: 51113-14399، تهران- ایران
کلیدواژهها
عنوان مقاله English
نویسندگان English
In studying the interaction of hydrogen ions emitted from a plasma focus device with selected materials for the first wall of a tokamak, characterizing the ion beam is crucial. For this purpose, a Faraday-cup detector was designed and built for the MTPF plasma focus device, and its electrical parameters were extracted. The signals obtained from the Faraday-cup exhibited two peaks: the first peak corresponds to radiation impact, and the second peak is due to the impact of the hydrogen ion beam on the graphite electrode of the Faraday-cup. Using the time-of-flight (TOF) method, the average energy of the hydrogen ion beam was determined to be 46 keV. The flux parameters of the beam at the aperture of the Faraday-cup were 2.37×10^24 ions.m^-2.s^-1 and 1.45×10^16 ions.m^-2, respectively. The specifications of the MTPF plasma focus device were incorporated into the Lee model code, and the resulting ion beam specifications from the code showed good agreement with the experimental results obtained from the Faraday-cup signal. Additionally, other characteristics of the hydrogen ion beam were extracted.
کلیدواژهها English
1. Akel M,Alsheikh Salo S, Ismael S, Saw SH, Lee S. Deuterium plasma focus as a tool for testing materials of plasma facing walls in thermonuclear fusion reactors. J. Fusion Energ. 2016;35:694.