An integrated ion trap and time-of-flight mass spectrometer for chemical and photo- reaction dynamics studies
Abstract
We demonstrate the integration of a linear quadrupole trap with a simple time-of-flight mass spectrometer with medium-mass resolution (m/Δm ∼ 50) geared towards the demands of atomic, molecular, and chemical physics experiments. By utilizing a novel radial ion extraction scheme from the linear quadrupole trap into the mass analyzer, a device with large trap capacity and high optical access is realized without sacrificing mass resolution. This provides the ability to address trapped ions with laser light and facilitates interactions with neutral background gases prior to analyzing the trapped ions. Here, we describe the construction and implementation of the device as well as present representative ToF spectra. We conclude by demonstrating the flexibility of the device with proof-of-principle experiments that include the observation of molecular-ion photodissociation and the measurement of trapped-ion chemical reaction rates.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Apr 01, 2012
- Source ID
- 10.1063/1.3700216
Entities
People
- Eric R Hudson
- Kuang Chen
- Scott T. Sullivan
- Steven J. Schowalter
- Wade G. Rellergert
Organizations
- Army Research Office
- National Science Foundation
- University of California