Intense, Hyperthermal Source of Organic Radicals for Matrix-Isolation Spectroscopy

Xu Zhang, Anders V. Friderichsen, Sreela Nandi, G. Barney Ellison, Donald E. David, J. Thomas McKinnon, Theodore G. Lindeman, David C. Dayton, Mark R. Nimlos

Research output: Contribution to journalArticlepeer-review

84 Scopus Citations


The matrix isolated infrared spectroscopy of organic radicals was studied by incorporating a pulsed, hyperthermal nozzle with a cryostat. The radicals were produced by pyrolysis in a heated, narrow-bore SiC tube and then expanded into the cryostat vacuum chamber. The combination of high nozzle temperature and near-sonic flow velocities through the length of the 2 cm tube allows a high yield of radicals and low residence time in the nozzle.

Original languageAmerican English
Pages (from-to)3077-3086
Number of pages10
JournalReview of Scientific Instruments
Issue number6
StatePublished - 2003

NREL Publication Number

  • NREL/JA-510-35023


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