title: Non-destructive single-pass low-noise detection of ions in a beamline.
abstract: We have conceived, built, and operated a device for the non-destructive single-pass detection of charged particles in a beamline. The detector is based on the non-resonant pick-up and subsequent low-noise amplification of the image charges induced in a cylindrical electrode surrounding the particles' beam path. The first stage of the amplification electronics is designed to be operated from room temperature down to liquid helium temperature. The device represents a non-destructive charge counter as well as a sensitive timing circuit. We present the concept and design details of the device. We have characterized its performance and show measurements with low-energy highly charged ions (such as Ar(13+)) passing through one of the electrodes of a cylindrical Penning trap. This work demonstrates a novel approach of non-destructive, low noise detection of charged particles which is, depending on the bunch structure, suitable, e.g., for ion traps, low-energy beamlines or accelerator transfer sections.
authors.affiliation: Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany.
authors.forename: Stefan
authors.initials: S
authors.lastname: Schmidt
authors.affiliation: Institut für Angewandte Physik, Technische Universität Darmstadt, 64289 Darmstadt, Germany.
authors.forename: Tobias
authors.initials: T
authors.lastname: Murböck
authors.affiliation: GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany.
authors.forename: Zoran
authors.initials: Z
authors.lastname: Andelkovic
authors.affiliation: Institut für Angewandte Physik, Technische Universität Darmstadt, 64289 Darmstadt, Germany.
authors.forename: Gerhard
authors.initials: G
authors.lastname: Birkl
authors.affiliation: Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany.
authors.forename: Wilfried
authors.initials: W
authors.lastname: Nörtershäuser
authors.affiliation: Stahl Electronics, 67582 Mettenheim, Germany.
authors.forename: Stefan
authors.initials: S
authors.lastname: Stahl
authors.affiliation: GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany.
authors.forename: Manuel
authors.initials: M
authors.lastname: Vogel