Rayleigh scattering of laser and synchrotron radiation from pulsed free jets of Arn and (N2O)n clusters

被引：28

作者：

Bush, AM

Bell, AJ

Frey, JG ^{[1
]}

Mestdagh, JM

机构：

[1] Univ Southampton, Dept Chem, Southampton SO17 1BJ, Hants, England

[2] CENS, Serv Photons Atomes & Mol, F-91191 Gif Sur Yvette, France

来源：

JOURNAL OF PHYSICAL CHEMISTRY A | 1998年 / 102卷 / 32期

关键词：

D O I：

10.1021/jp9814810

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Rayleigh scattering has been used to determine the average size of clusters formed in pulsed free-jet expansions of Ar and N2O. The scaling behavior of the mean cluster size with backing pressure predicted by Hagena (Rev. Sci. Instrum. 1992, 63, 2374) and Buck and Krohne (J. Chenz. Phys. 1996, 105, 5408) has been shown to be applicable up to at least an average cluster size of 25 000. A similar scaling of the average cluster size with pressure was observed for both Ar and N2O. Competing photochemical and photophysical processes are shown to limit the use of short-wavelength radiation to observe Rayleigh scattering from the N2O clusters.

引用

页码：6457 / 6463

页数：7

共 33 条

[1] HOMOGENEOUS NUCLEATION OF SULFUR-HEXAFLUORIDE CLUSTERS IN LAVAL NOZZLE MOLECULAR-BEAMS [J].