Global InformationReaction kinetics in uniform supersonic flow information
Reaction kinetics in uniform supersonic flow (French: Cinétique de Réaction en Ecoulement Supersonique Uniforme, CRESU) is an experiment investigating chemical reactions taking place at very low temperatures.[1][2][3]
The technique involves the expansion of a gas or mixture of gases through a de Laval nozzle from a high-pressure reservoir into a vacuum chamber. As it expands, the nozzle collimates the gas into a uniform supersonic beam, which is essentially collision-free and has a temperature that, in the centre-of-mass frame, can be significantly below that of the reservoir gas. Each nozzle produces a characteristic temperature. This way, any temperature between room temperature and about 10 K can be achieved.
- ^ Sims, Ian R.; Smith, Ian W. M. (October 1995). "Gas-Phase Reactions and Energy Transfer at Very Low Temperatures". Annual Review of Physical Chemistry. 46 (1): 109–138. Bibcode:1995ARPC...46..109S. doi:10.1146/annurev.pc.46.100195.000545. PMID 24329120.
- ^ Smith, Ian W. M. (28 April 2006). "Reactions at Very Low Temperatures: Gas Kinetics at a New Frontier". Angewandte Chemie International Edition. 45 (18): 2842–2861. doi:10.1002/anie.200502747. PMID 16628767.
- ^ Smith, Ian W. M.; Rowe, Bertrand R. (2000). "Reaction Kinetics at Very Low Temperatures: Laboratory Studies and Interstellar Chemistry". Accounts of Chemical Research. 33 (5): 261–268. doi:10.1021/ar990099i. ISSN 0001-4842.