Title: Development of a 14.5 GHz all-permanent magnet multicharged ECR ion source for remote operation
Language: English
Authors: Galutschek, Ernst 
Qualification level: Doctoral
Advisor: Rauch
Assisting Advisor: Winter, Hannspeter 
Issue Date: 2005
Number of Pages: 99
Qualification level: Doctoral
Collisions of slow (impact velocity below 25 keV/amu) multiply-charged ions (MCI) with atoms, molecules and solid surfaces is of considerable interest in various fields of modern research; e.g., thermonuclear fusion plasmas, astrophysical and ionospheric processes, surface analytics and nanotechnology. In this respect, the so-called electron cyclotron resonance (ECR) ion source, invented by the French physicist Richard Geller, has become a workhorse for the production of slow MCI beams. Commonly, the magnetic fields used to confine ECR-heated plasmas are produced by normal conducting or superconducting electromagnetic coils, the use of which has a high operating cost due to their energy consumption. In this thesis, the construction of and initial operational results from a novel 14.5 GHz ECR ion source, based on permanent magnets only, is described. This ion source has been built and tested both on a test bench and with a small ion accelerator for atomic collision experiments, both in the gas phase and on solid surfaces in ultra-high vacuum. The new ECR ion source can be operated remotely via a LabVIEW program and the Internet.
In this context we briefly recount some experimental activities on fast helium beam emission spectroscopy for boundary plasma diagnostics at JET, the world-leading Joint European Torus fusion experiment in Culham, England, where remote participation is commonly used.
Keywords: Ionenquelle; Zyklotronresonanz; Dauermagnet; Gigahertzbereich
URI: https://resolver.obvsg.at/urn:nbn:at:at-ubtuw:1-20214
Library ID: AC04535385
Organisation: E134 - Institut für Allgemeine Physik 
Publication Type: Thesis
Appears in Collections:Thesis

Files in this item:

Show full item record

Page view(s)

checked on May 16, 2021


checked on May 16, 2021

Google ScholarTM


Items in reposiTUm are protected by copyright, with all rights reserved, unless otherwise indicated.