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Title: Design and characterization of late-mixing flash pyrolytic reactor molecular-beam source

Abstract

We report on the design and characterization of an intense pulsed beam source for the generation of expansion-cooled radical species. The source combines both dual pulsed valve late mixing for coexpansion of reactive gases with a pyrolytic end nozzle as a flash kinetic reactor. As a demonstration of the source we present evidence of BrO and ClO radical production and subsequent photodissociation studies of these species using velocity map ion imaging. The radicals are characterized by a rotational temperature of 150{+-}40 K although substantially lower temperatures should be possible.

Authors:
; ; ;  [1]
  1. Department of Chemistry, Texas A and M University, P.O. Box 30012, College Station, Texas 77842 (United States)
Publication Date:
OSTI Identifier:
20778489
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 76; Journal Issue: 12; Other Information: DOI: 10.1063/1.2148991; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; BROMINE OXIDES; CHEMICAL REACTORS; CHLORINE OXIDES; DESIGN; DISSOCIATION; GASES; MIXING; MOLECULAR BEAMS; NOZZLES; PHOTOLYSIS; PYROLYSIS; RADICALS; VALVES

Citation Formats

Kim, Hahkjoon, Dooley, Kristin S., Johnson, Elizabeth R., and North, Simon W. Design and characterization of late-mixing flash pyrolytic reactor molecular-beam source. United States: N. p., 2005. Web. doi:10.1063/1.2148991.
Kim, Hahkjoon, Dooley, Kristin S., Johnson, Elizabeth R., & North, Simon W. Design and characterization of late-mixing flash pyrolytic reactor molecular-beam source. United States. doi:10.1063/1.2148991.
Kim, Hahkjoon, Dooley, Kristin S., Johnson, Elizabeth R., and North, Simon W. Thu . "Design and characterization of late-mixing flash pyrolytic reactor molecular-beam source". United States. doi:10.1063/1.2148991.
@article{osti_20778489,
title = {Design and characterization of late-mixing flash pyrolytic reactor molecular-beam source},
author = {Kim, Hahkjoon and Dooley, Kristin S. and Johnson, Elizabeth R. and North, Simon W.},
abstractNote = {We report on the design and characterization of an intense pulsed beam source for the generation of expansion-cooled radical species. The source combines both dual pulsed valve late mixing for coexpansion of reactive gases with a pyrolytic end nozzle as a flash kinetic reactor. As a demonstration of the source we present evidence of BrO and ClO radical production and subsequent photodissociation studies of these species using velocity map ion imaging. The radicals are characterized by a rotational temperature of 150{+-}40 K although substantially lower temperatures should be possible.},
doi = {10.1063/1.2148991},
journal = {Review of Scientific Instruments},
number = 12,
volume = 76,
place = {United States},
year = {Thu Dec 15 00:00:00 EST 2005},
month = {Thu Dec 15 00:00:00 EST 2005}
}
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