Study of Ionic Structure and Ion Reaction Dynamics by Cavity Ring-Down Spectroscopy
Abstract
Initially, we developed an ion spectrometer that could be used to study the spectroscopy and reactivity of small ions. For this purpose we characterized the discharge source, forming ions by combining an electrical discharge with a supersonic expansion from a pulsed nozzle. After expanding into a vacuum chamber, the ions were detected using cavity ring-down spectroscopy (CRDS), allowing the population of individual states to be determined on an absolute basis. The CRDS detection of the ions from this source was tested with N2+ by probing the B(2) sum sigma(+) - X(2) sum sigma (+)g electronic band system. We are also using Hadamard transform time-of-flight mass spectrometry as the basis for producing an instrument that could be used to analyze and identify the components of potentially contaminated samples.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 2001
- Accession Number
- ADA421521
Entities
People
- Marguerite B. Wilbur
- Richard Zare
Organizations
- Stanford University