RAYLEIGH-SCATTERING FROM AN ARGON PLASMA-JET AT ATMOSPHERIC-PRESSURE

被引:7
作者
WANG, ZM [1 ]
KEARNEY, RJ [1 ]
机构
[1] UNIV IDAHO,DEPT PHYS,MOSCOW,ID 83843
关键词
D O I
10.1016/0022-4073(90)90011-T
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Rayleigh scattering of the 5145 Å line of an argon ion laser is reported for a d.c. argon plasma jet operating at 1 atm. The measured signal intensity is used to obtain the kinetic temperature distribution of the plasma gas and this distribution is compared with the spectroscopic LTE temperatures determined from the 4300 and 7272 Å argon I lines. The results show that over a wide range of power levels, LTE is not satisfied except for the very central region of the plasma. In all other parts of the jet, the upper states of the argon atoms in the plasma are overpopulated. © 1990.
引用
收藏
页码:339 / 343
页数:5
相关论文
共 24 条
[1]   AN INVESTIGATION OF LOCAL THERMODYNAMIC-EQUILIBRIUM IN AN ARGON PLASMA-JET AT ATMOSPHERIC-PRESSURE [J].
BAKSHI, V ;
KEARNEY, RJ .
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER, 1989, 41 (05) :369-376
[2]  
BAKSHI V, 1989, JQSRT, V41, P147
[3]  
BATENIN VM, 1977, HIGH TEMP, V15, P239
[4]  
BAUN D, 1975, PLASMA PHYS, V17, P79
[5]  
CLACK NA, 1975, PHYS REV A, V12, P223
[6]   DEPARTURES FROM EQUILIBRIUM IN A FREE-BURNING ARGON ARC [J].
CRAM, LE ;
POLADIAN, L ;
ROUMELIOTIS, G .
JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1988, 21 (03) :418-425
[7]   VALIDITY CONDITIONS FOR LOCAL THERMODYNAMIC EQUILIBRIUM [J].
DRAWIN, HW .
ZEITSCHRIFT FUR PHYSIK, 1969, 228 (02) :99-+
[8]   RAYLEIGH-SCATTERING MEASUREMENTS IN A FREE-BURNING ARGON ARC [J].
FARMER, AJD ;
HADDAD, GN .
JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1988, 21 (03) :426-431
[9]   RAYLEIGH LIGHT-SCATTERING WITH A LOW-POWER HE-NE-LASER [J].
GEINDRE, JP ;
GAUTHIER, JC ;
DELPECH, JF .
PHYSICS LETTERS A, 1973, A 44 (02) :149-150
[10]   RAYLEIGH-BRILLOUIN SPECTRUM OF COMPRESSED HE, NE, AND AR .1. SCALING [J].
GHAEMMAGHAMI, V ;
MAY, AD .
PHYSICAL REVIEW A, 1980, 22 (02) :692-697