A method for the determination of spatial electron density distribution in great Plasma-Focus devices

• Autorzy: Kasperczuk A. , Paduch M. , Pisarczyk T. , Tomaszewski K.
• Języki publikacji: EN

Abstrakty

EN

Determination of the electron density of plasma generated in a great plasma-focus device by means of interferometry is very difficult or sometimes impossible. In order to determine spatial electron density distributions of plasma in a PF-1000 device, a special method was prepared, with the use of plasma images obtained by means of both an optical frame camera and shadowgraphy. Analysis of plasma radiation in the very narrow Äë = 60 Ĺ optical range allowed us to determine the relation between intensity of the plasma radiation and the electron density. It was also shown that the influence of electron temperature on plasma radiation is not large. The presented method allowed us to obtain spatial electron density distributions of plasma (in relative units) in the PF-1000 device. By means of this method a number of important information about the plasma-focus phenomenon was obtained.

Słowa kluczowe

EN

bremsstrahlung radiation; electron density distribution; frame optical camera; plasma-focus device; plasma radiation intensity; shadowgraphy

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2002
• Tom: Vol. 47, nr 1
• Strony: 23--26
• Opis fizyczny: Bibliogr. 7 poz., rys.

Twórcy

autor

Kasperczuk A.

• Institute of Plasma Physics and Laser Microfusion, 23 Hery Str., 00-908 Warsaw, Poland, Tel.: [phone], Fax: [phone]

autor

Paduch M.

• Institute of Plasma Physics and Laser Microfusion, 23 Hery Str., 00-908 Warsaw, Poland, Tel.: [phone], Fax: [phone]

autor

Pisarczyk T.

• Institute of Plasma Physics and Laser Microfusion, 23 Hery Str., 00-908 Warsaw, Poland, Tel.: [phone], Fax: [phone]

autor

Tomaszewski K.

• Institute of Plasma Physics and Laser Microfusion, 23 Hery Str., 00-908 Warsaw, Poland, Tel.: [phone], Fax: [phone]

Bibliografia

• 1. Czekaj S, Denus S, Kasperczuk A, Miklaszewski R, Paduch M, Pisarczyk T, Wereszczyński Z (1985) MHD stability of plasma in the PF-150 device. In: Proc of the 4th Int Workshop on Plasma Focus and Z-pinch Research. Warsaw, Poland 1:124–127
• 2. Czekaj S, Denus S, Kasperczuk et al. (1983) Evolution of plasma column and its connection with neutron emission in the plasmafocus PF-150 device. In: Proc 11th Eur Conf on Controlled Fusion and Plasma Physics. Aachen, Germany 1:469–473
• 3. Czekaj S, Kasperczuk A, Miklaszewski R, Paduch M, Pisarczyk T, Wereszczyński Z (1989) Diagnostic method for the magnetic field measurement in plasma focus device. Plasma Phys Contr Fusion 31;4:587–594
• 4. Kasperczuk A, Kumar R, Miklaszewski R, Paduch M, Pisarczyk T, Tomaszewski K, Scholz M (2002) Study of the plasma evolution in the PF-1000 device by means of optical diagnostic. Phys Scripta 65:96–102
• 5. Kasperczuk A, Pisarczyk T (1996) Interferometric investigations of laser-produced plasma in strong external magnetic field. Phys Scripta 53:503–507
• 6. Lochte-Holdgreven B (ed) (1970) Plasma diagnostics. NorthHolland Pub. Co., Amsterdam
• 7. Rosenbluth MN, Sagdeev RZ (eds) (1983) Hand-book of plasma physics, vol. 1. North-Holland Pub. Co., Amsterdam