An experimental analysis of the focusing of a continuous electron beam, induced by the mutual interaction with charges produced by electron impact, is presented. The phenomenon has been observed by measuring the beam current on two different detector active areas as a function of the gas pressure in H-2 and D2. The stationary solutions of a three-fluid model, already developed, allow us to measure the maximum beam density. Moreover, we carry out information about the main processes responsible for ionization and their cross sections in the case of a three-component quasiequilibrium plasma. RI Berardi, Vincenzo/H-4550-2011; Velotta, Raffaele/I-5298-2012
Continuous-electron-beam focusing induced by collective plasma interactions in D2 and H2 / Giammanco, F.; Armenante, M.; Berardi, V.; Spinelli, N.; Velotta, R.. - In: PHYSICAL REVIEW E. - ISSN 1063-651X. - STAMPA. - 47:3(1993), pp. 1960-1967. [10.1103/PhysRevE.47.1960]
Continuous-electron-beam focusing induced by collective plasma interactions in D2 and H2
V. Berardi;
1993-01-01
Abstract
An experimental analysis of the focusing of a continuous electron beam, induced by the mutual interaction with charges produced by electron impact, is presented. The phenomenon has been observed by measuring the beam current on two different detector active areas as a function of the gas pressure in H-2 and D2. The stationary solutions of a three-fluid model, already developed, allow us to measure the maximum beam density. Moreover, we carry out information about the main processes responsible for ionization and their cross sections in the case of a three-component quasiequilibrium plasma. RI Berardi, Vincenzo/H-4550-2011; Velotta, Raffaele/I-5298-2012I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
