Speaker
Dr
Wolfgang Schott
(TUM)
Description
We developed fast switchable Bradbury Nielsen gates for the manipulation of low energy protons and hydrogen atoms. Using a system of two coupled gates operated with a variable time delay, we have built an electronic chopper with opening times in the order of 10-500ns. First use of such a system has been a pulsed proton beam of 500 eV energy with a variable energy spread, which is determined by the time of flight convoluted with frame opening. Post-acceleration can be used to produce a high-energy beam (20 keV in our experiment) with very small relative energy spread. Such a set up can also be used as velocity filter for metastable hydrogen atoms. An application foreseen is the detection of the bound beta decay of the neutron.
Authors
Dr
Erwin Gutsmiedl
(Physik-Department, Technische Universität München, 85748 Garching, Germany)
Dr
Wolfgang Schott
(TUM)
Co-authors
Prof.
Bastian Märkisch
(Physik-Department, Technische Universität München, 85748 Garching, Germany)
Mr
Christoph Roick
(Physik-Department, Technische Universität München, 85748 Garching, Germany)
Mr
Igor Konorov
(Physik-Department, Technische Universität München, 85748 Garching, Germany)
Mrs
Karina Bernert
(Physik-Department, Technische Universität München, 85748 Garching, Germany)
Mr
Stefan Huber
(Physik-Department, Technische Universität München, 85748 Garching, Germany)
Prof.
Stephan Paul
(Physik-Department, Technische Universität München, 85748 Garching, Germany)
