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HP NIS Report Summary

Project ID: HPRI-CT-2001-50021
Country: Germany

nIGUN: Code for negative ion source extraction

The computer code nIGUN was developed for an better understanding of the extraction mechanism in the case of negative hydrogen ions. In the revised sheath theory, accelerated electrons and H- ions, fast protons and thermal ions, like protons caesium and molecular ions can be taken into account by their space charge contribution. Based on a self-consistent theory of the plasma sheath, H- extraction electrodes can be optimized. The world wide distribution of the developed computer code is initiated (see URL) and has raised many inquiries already.

Reported by

IAP/J.W. Goethe Universität/Max-von-Laue-Strasse 1
60438 Frankfurt am Main
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