Darmstadt 2016 – wissenschaftliches Programm
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AKBP: Arbeitskreis Beschleunigerphysik
AKBP 11: Poster
AKBP 11.22: Poster
Mittwoch, 16. März 2016, 18:30–20:30, S1/05 22-24
Non-Intercepting Beam Intensity Measurements towards pico-Ampere: Cryogenic Current Comparators for FAIR — •Febin Kurian1,2,3, Marcus Schwickert1, Thomas Sieber1, Piotr Kowina1, Hansjoerg Reeg1, Rene Geithner4, Ralf Neubert4, Thomas Stoehlker1,3,4, Paul Seidel4, and Jessica Golm4 — 1GSI Helmholtzzentrum für Schwerionenforschung — 2Goethe University, Frankfurt am Main, Germany — 3Helmholtz Institute Jena, Germany — 4Friedrich-Schiller- Universität Jena, Germany
To satisfy the requirement of non-interceptive measurement of beam intensity down to nA range foreseen in the upcoming FAIR accelerator facility, several Cryogenic Current Comparator (CCC) systems are planned to be installed in its beam transfer lines and storage rings. As a test bench for the development of advanced CCC systems for these installations, the existing CCC system at GSI has been recommissioned and upgraded with advanced sensor components. Successful beam intensity measurements using this upgraded CCC system will be reported in this contribution. Apart from the beam measurements, several operational aspects of the CCC system were investigated, such as the baseline drifts and various noise influences. Combining the operational experiences and boundary conditions given at various installation locations in the FAIR facility, an advanced CCC system is currently under development and is planned to be installed at the Cryring facility at GSI for test measurements. Details on the development of this advanced CCC system will also be presented in this contribution.