Beam characteristics of the new DESY H(-) source and investigations of the plasma load

J Peters; H-H Sahling; I Hansen

doi:10.1063/1.2801643

Beam characteristics of the new DESY H(-) source and investigations of the plasma load

Rev Sci Instrum. 2008 Feb;79(2 Pt 2):02A523. doi: 10.1063/1.2801643.

Authors

J Peters¹, H-H Sahling, I Hansen

Affiliation

¹ Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, Hamburg, Germany.

PMID: 18315144
DOI: 10.1063/1.2801643

Abstract

The new DESY H(-) source with a completely insulated plasma has been thoroughly investigated with emittance and beam profile measurements. The beam profile was measured with a multi-Faraday cup, and for the emittance measurements a slit and grid device was used. More than 200 beam profile and emittance measurements for x as well as y were done. Their dependences on rf power, filter field strength, and gas pressure were measured. The plasma load was investigated with a substitution method. It was possible to determine the real and imaginary parts which is seen by the rf antenna.