0.2-kJ and 2-kJ high rep rate Dense Plasma foci : their design, technology, and applications

• Autorzy: Dubrovsky A. V. , Gribkov V. A. , Ivanov Y. P. , Lee P. , Lee S. , Liu M. , Samarin V. A.
• Konferencja: International Workshop on Dense Magnetised Plasmas IWDMP’2000 (12-14.10.2000 ; Kudowa Zdrój, Poland)
• Języki publikacji: EN

Abstrakty

EN

The paper presents various designs of several medium and small size Dense Plasma Focus (DPF) chambers intended for numerous applications, a description of technologies used in these facilities, and some results reached with these devices by using a number of diagnostic techniques. In present experiments the DP foci have been used mainly as an X-ray source. We discuss here how it is possible to satisfy absolutely new and very strict demands on the construction and technology for the devices to be eventually applied in science and industry. Between these characteristics there are a high repetition rate (typically 1…15 Hz) and a long lifetime (over 1 million shots). Their switching elements, a collector and chambers must withstand a high quasi-continuous heat load (up to 100 kW). High energy density in the central part of the chamber anode and the necessity to provide a channel for radiation extraction demanded a special construction and specific materials implementation in this region. Their X-ray spectrum should be tuned. They have to operate with different working gases and preferably in a wide range of pressures. All these points are discussed in this report. Capabilities of the described techniques are illustrated by results of the recent experimental studies carried out with facilities located at the Nanyang Technological University (NX1) as well as at the Lebedev Physical Institute (PF-0.2).

Słowa kluczowe

EN

dense plasma focus (DPF); DPF installation; miniature focus chamber; soft and hard X-ray radiation

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2001
• Tom: Vol. 46, suppl. 1
• Strony: 107--111
• Opis fizyczny: Bibliogr. 7 poz., rys.

Twórcy

autor

Dubrovsky A. V.

• P.N. Lebedev Physical Institute, Russian Academy of Sciences, Leninsky pr. 53, 117924 Moscow, Russia

autor

Gribkov V. A.

• Institute of Plasma Physics and Laser Microfusion, Hery 23 str., 00-908 Warsaw, Poland

autor

Ivanov Y. P.

• All Russian Research Institute of Automatics, 103030 Moscow, Russia

autor

Lee P.

• Nanyang Technological University, NIE, 637616 Singapore

autor

Lee S.

• Nanyang Technological University, NIE, 637616 Singapore

autor

Liu M.

• Nanyang Technological University, NIE, 637616 Singapore

autor

Samarin V. A.

• All Russian Research Institute of Automatics, 103030 Moscow, Russia

Bibliografia

• 1. Bogolyubov EP, Bochkov VD, Veretennikov VA et al. (1999) A powerful soft X-ray source for X-ray lithography based on Plasma Focusing. Phys Scripta 57:488–494
• 2. Dubrovsky AV, Gribkov VA (2000) Installations based on high efficiency high rep rate miniature DPF chambers for material science. Nukleonika 45;3:159–162
• 3. Dubrovsky AV, Gribkov VA, Ivanov YuP, Lee P, Lee S, Liu M (1999) Operation of a small Dense Plasma Focus with neon gas filling in low and high pressure regimes. J Tech Phys 40;1:125–128
• 4. Dubrovsky AV, Silin PV, Gribkov VA, Volobuev IV (2000) DPF device application in the material characterization. Nukleonika 45;3:185–187
• 5. Gribkov VA (1989) Physical processes in high-current discharges of “plasma focus” type. Doctor of Phys-Math Sci dissertation. Lebedev Physical Institute, Moscow (in Russian)
• 6. Lee S, Lee P, Zhang G et al. (1998b) High rep rate high performance Plasma Focus as a powerful radiation source. IEEE Trans Plasma Sci 26;4:1119–1126
• 7. Orlova MA, Kost OA, Gribkov VA, Gazaryan IG, Dubrovsky AV, Egorov VA (2000) Enzyme activation and inactivation induced by low doses of irradiation. Appl Biochem Biotech 84:1–12