Article

Arhive, 2013, № 6

Plasma Investigations

2013. V. 51. № 6. P. 733–741

Andryushin I.I., Vladimirov V.I., Deputatova L.V., Zherebtsov V.A., Meshakin V.I., Prudnikov P.I., Rykov V.A.

Non-self-maintained discharge supported by a proton beam for studying stretched dust structures

The main parameters of non-self-maintained discharge supported by a proton beam in inert gas are obtained. The discharge is used to study dust structures in nuclear excited plasma. Its main features include low gas pressure ($\sim133\text{ Pa}$) and low proton beam current density ($\sim10^{-6}\text{ A/cm}^2$). It is shown that a trap for negatively charged dust particles is formed in the discharge near-collector area at a sufficiently large negative voltage on the collector ($-100\text{ V}$), which is caused by a large negative potential jump in the Langmuir electrode layer whose width increases with distance from the center of the discharge. The possibility of generating stretched dust structures in non-self-maintained discharge is considered.

Article reference:
Andryushin I.I., Vladimirov V.I., Deputatova L.V., Zherebtsov V.A., Meshakin V.I., Prudnikov P.I., Rykov V.A. Non-self-maintained discharge supported by a proton beam for studying stretched dust structures, High Temp., 2013. V. 51. № 6. P. 733