Influence of an electron-beam injection on ion charge state distribution in an ECR source at 2.45 GHz

The single stage multicharged ion ECR source supplimented with a La-B electron gun is investigated. The magnetic system of the source consists of Sm-Co hexapole and two solenoids which create mirror configuration. The argon plasma production chamber is a TE111 mode cavity fed with a 600-W oscillator of 2.45 GHz. The source performance was found to be independent of the gun bias potential if the gun was located in a magnetic throat. It was observed that the injection of the cold electron beam (15 mA) at the pressure of 0.008 mTorr shifted the mean ion charge from 1.3 to 1.8 and increased the currents of ions in states Z=3 and Z=4 by a factor of 2.5-3.0. For a low-frequency source, the application of an electron gun allows for the generation of middle charged ions.

Authors
Dougar-Jabon V.D.1 , Golovanivsky K.S.1 , Kondratov B.A.1 , Kushnarenko V.D.1
Editors
-
Publisher
-
Number of issue
4
Language
English
Pages
2867-2868
Status
Published
Department
-
Number
-
Volume
63
Year
1992
Organizations
  • 1 Plasma Physics Laboratory, Patrice Lumumba University, 117198 Moscow, Russian Federation
Keywords
-
Date of creation
19.10.2018
Date of change
19.10.2018
Short link
https://repository.rudn.ru/en/records/article/record/1033/