The plasma generated in a spherical pinch device consists of a linear discharge along the diameter of a spherical vessel and of an implosion that compresses the linear plasma. Because the linear discharge by itself is found to emit pulses of soft X rays, this phenomenon is investigated by considering a spatially uniform plasma subjected to an electric field. With an appropriate change of variables, a one-dimensional time-independent Boltzmann Fokker-Planck equation is transformed into a confluent hypergeometric equation. The electron distribution function is then calculated in closed form together with the density current to obtain the X-ray spectra from such plasmas.
Manservisi, S., Molinari, V.g., Nespoli, A. (1995). X-RAY-EMISSION FROM THE LINEAR PLASMA OF A SPHERICAL PINCH - THE ELECTRON-DISTRIBUTION FUNCTION IN A STRONG ELECTRIC-FIELD. FUSION TECHNOLOGY, 27(3), 237-244 [10.13182/FST95-A30386].
X-RAY-EMISSION FROM THE LINEAR PLASMA OF A SPHERICAL PINCH - THE ELECTRON-DISTRIBUTION FUNCTION IN A STRONG ELECTRIC-FIELD
MANSERVISI, S;
1995
Abstract
The plasma generated in a spherical pinch device consists of a linear discharge along the diameter of a spherical vessel and of an implosion that compresses the linear plasma. Because the linear discharge by itself is found to emit pulses of soft X rays, this phenomenon is investigated by considering a spatially uniform plasma subjected to an electric field. With an appropriate change of variables, a one-dimensional time-independent Boltzmann Fokker-Planck equation is transformed into a confluent hypergeometric equation. The electron distribution function is then calculated in closed form together with the density current to obtain the X-ray spectra from such plasmas.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
