title: Beam characteristics of the new DESY H(-) source and investigations of the plasma load.
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.
authors.affiliation: Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, Hamburg, Germany.
authors.forename: J
authors.initials: J
authors.lastname: Peters
authors.forename: H-H
authors.initials: HH
authors.lastname: Sahling
authors.forename: I
authors.initials: I
authors.lastname: Hansen