TY - CONF A1 - Lakatos, Andreas A1 - Pozimski, Jürgen A1 - Jakob, Ansgar A1 - Klein, Horst T1 - Extraction and low energy transport of negative ions T2 - LINAC 98 proceedings, Chicago, USA, August 23 - 28, 1998 N2 - High perveance negative ion beams with low emittance are essential for several next generation particle accelerators (i. g. spallation sources like ESS [1] and SNS [2]). The extraction and transport of these beams have intrinsic difficulties different from positive ion beams. Limitation of beam current and emittance growth have to be avoided. To fulfill the requirements of those projects a detailed knowledge of the physics of beam formation the interaction of the H- with the residual gas and transport is substantial. A compact cesium free H- volume source delivering a low energy high perveance beam (6.5 keV, 2.3 mA, perveance K= 0.0034) has been built to study the fundamental physics of beam transport and will be integrated into the existing LEBT section in the near future. First measurements of the interaction between the ion beam and the residual gas will be presented together with the experimental set up and preliminary results. Y1 - 2005 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/4090 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30-13932 SP - 523 EP - 525 ER -