Combining high mass resolution and velocity imaging in a time-of-flight ion spectrometer using pulsed fields and an electrostatic lens

G. Prümper, H. Fukuzawa, T. Lischke, K. Ueda

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

Abstract

We describe a momentum resolving time-of-flight ion mass spectrometer that combines a high mass resolution, a velocity focusing condition for improved momentum resolution, and field-free conditions in the source region for high resolution electron detection. It is used in electron-ion coincidence experiments to record multiple ionic fragments produced in breakup reactions of small to medium sized molecules, such as F3 SiC H2 C H2 Si (C H3) 3. These breakup reactions are caused by soft x rays or intense laser fields. The ion spectrometer uses pulsed extraction fields, an electrostatic lens, and a delay line detector to resolve the position. Additionally, we describe a simple analytical method for calculating the momentum from the measured hit position and the time of flight of the ions.

Original languageEnglish
Article number083104
JournalReview of Scientific Instruments
Volume78
Issue number8
DOIs
Publication statusPublished - 2007

ASJC Scopus subject areas

  • Instrumentation

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