title: Development and characterization of a multiple-coincidence ion-momentum imaging spectrometer.
abstract: The design and performance of a high-resolution momentum-imaging spectrometer for ions which is optimized for experiments using synchrotron radiation is presented. High collection efficiency is achieved by a focusing electrostatic lens; a long drift tube improves mass resolution and a position-sensitive detector enables measurement of the transverse momentum of ions. The optimisation of the lens for particle momentum measurement at the highest resolution is described. We discuss the overall performance of the spectrometer and present examples demonstrating the momentum resolution for both kinetics and for angular measurements in molecular fragmentation for carbon monoxide and fullerenes. Examples are presented that confirm that complete space-time focussing is possible for a two-field three-dimensional imaging spectrometer.
authors.affiliation: Department of Synchrotron Radiation Research, Lund University, Box 118, S-221 00 Lund, Sweden.
authors.forename: J
authors.initials: J
authors.lastname: Laksman
authors.affiliation: Department of Synchrotron Radiation Research, Lund University, Box 118, S-221 00 Lund, Sweden.
authors.forename: D
authors.initials: D
authors.lastname: Céolin
authors.affiliation: Department of Synchrotron Radiation Research, Lund University, Box 118, S-221 00 Lund, Sweden.
authors.forename: E P
authors.initials: EP
authors.lastname: Månsson
authors.affiliation: Department of Synchrotron Radiation Research, Lund University, Box 118, S-221 00 Lund, Sweden.
authors.forename: S L
authors.initials: SL
authors.lastname: Sorensen
authors.affiliation: Department of Synchrotron Radiation Research, Lund University, Box 118, S-221 00 Lund, Sweden.
authors.forename: M
authors.initials: M
authors.lastname: Gisselbrecht