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

doi:10.1063/1.2774823

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

Rev Sci Instrum. 2007 Aug;78(8):083104. doi: 10.1063/1.2774823.

Authors

G Prümper¹, H Fukuzawa, T Lischke, K Ueda

Affiliation

¹ Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai, Japan. [email protected]

PMID: 17764310
DOI: 10.1063/1.2774823

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 F(3)SiCH(2)CH(2)Si(CH(3))(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.

Publication types

Evaluation Study
Research Support, Non-U.S. Gov't

MeSH terms

Computer-Aided Design
Electrodes*
Equipment Design
Equipment Failure Analysis
Lenses
Spectrometry, Mass, Electrospray Ionization / instrumentation*
Spectrometry, Mass, Electrospray Ionization / methods
Static Electricity