Münster 2017 – scientific programme
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HK: Fachverband Physik der Hadronen und Kerne
HK 51: Instrumentation XII
HK 51.7: Talk
Thursday, March 30, 2017, 18:15–18:30, F 072
First results of a high-precision high-voltage measurement based on collinear laser spectroscopy — •Kristian König1, Christopher Geppert2, Phillip Imgram1, Jörg Krämer1, Bernhard Maaß1, Ernst Otten3, Tim Ratajczyk1, Johannes Ullmann1, and Wilfried Nörtershäuser1 — 1Institut für Kernphysik, TU Darmstadt — 2Institut für Kernchemie, Johannes Gutenberg-Universität Mainz — 3Institut für Physik, Johannes Gutenberg-Universität Mainz
Many physics experiments depend on accurate high-voltage measurements to determine for example the exact retardation potential of an electron spectrometer as in the KATRIN experiment or the acceleration voltage of the ions at ISOL facilities. Until now only precision high-voltage dividers can be used to measure voltages up to 65 kV with an accuracy of 1 ppm. However, these dividers need frequent calibration and cross-checking and the direct traceability is not given. We will report on the status of the ALIVE experiment at the TU Darmstadt which aims to measure high voltages using collinear laser spectroscopy and which has the potential to provide a high-voltage standard and hence, a calibration source for precision high-voltage dividers on the 1 ppm level.