DIRECT TEMPERATURE-MEASUREMENT IN ALKALI-HALIDE CLUSTER BEAM

被引：10

作者：

LABASTIE, P

LHERMITE, JM

PONCHARAL, P

RAKOTOARISOA, L

SENCE, M

机构：

[1] Laboratoire CAR (URA 770 CNRS), IRSAMC, Université Paul Sabatier, Toulouse Cedex, F-31062, 118, Route de Narbonne

来源：

ZEITSCHRIFT FUR PHYSIK D-ATOMS MOLECULES AND CLUSTERS | 1995年 / 34卷 / 02期

关键词：

D O I：

10.1007/BF01439388

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

The temperature of a sodium fluoride cluster beam produced by laser vaporization is estimated from the rotationally-resolved laser spectroscopy of the Na-2 dimer. The cluster beam is obtained by laser vaporization of a sodium rod in a mixture of helium containing a small amount (1%) of SF6. Both rotational and vibrational temperatures (respectively 170 K and 400 K) are much higher than expected from a simple theoretical model of a supersonic beam. These temperatures can be lowered to 70 K and 250 K respectively by cooling the nozzle to liquid nitrogen temperature.

引用

页码：135 / 138

页数：4

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