| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8170255 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2016 | 4 Pages |
Abstract
An elevator increases the potential energy of a particle beam with respect to ground potential without any alteration of kinetic energy and other beam parameters. This elevator is necessary for the implementation of the Munich Scanning Positron Microscope (SPM) at the intense positron source NEPOMUC at the research reactor FRM II in Munich. The principles of the rf elevator for pure electrostatically guided positrons are described. Measurements of beam quality behind the elevator are reported, which confirm that after the implementation of elevator and SPM at NEPOMUC the SPM can be operated at a considerably improved resolution (~0.3μm) and event rate (~3.7 kHz) compared to the laboratory based β+-source.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Instrumentation
Authors
Marcel Dickmann, Johannes Mitteneder, Gottfried Kögel, Werner Egger, Peter Sperr, Ulrich Ackermann, Christian Piochacz, Günther Dollinger,