Enhanced technique for measuring collisional quenching rate coefficients in rare-gas mixtures
- P N Lebedev Physical Institute, Russian Academy of Sciences, Moscow (Russian Federation)
We set forth an improved technique for the investigation of collisional quenching in high-pressure rare-gas mixtures, which relies on the absorption probing measurements of the decay rates of the excited states of these gases in the afterglow of a fast electron beam discharge. We determined more precisely the rate coefficients of the plasmochemical reactions Xe* + Xe + Ar {yields} Xe{sub 2}* and Xe*+Ar {yields} products + Ar for the metastable (6s[3/2]{sub 2}{sup 0}) and resonance (6s[3/2]{sub 1}{sup 0}) levels of atomic Xe investigated in our earlier work. The rate coefficients for the reactions Xe(6s[3/2]{sub 2}{sup 0}) + 2Ar {yields} ArXe* + Ar((7.2{+-}1.4)x10{sup -36} cm{sup 6} s{sup -1}) and Xe(6s[3/2]{sub 1}{sup 0}) + 2Ar {yields} ArXe*((5.3{+-}2.4)x10{sup -36} cm{sup 6} s{sup -1}) were measured for the first time. (active media)
- OSTI ID:
- 21541775
- Journal Information:
- Quantum Electronics (Woodbury, N.Y.), Journal Name: Quantum Electronics (Woodbury, N.Y.) Journal Issue: 2 Vol. 41; ISSN 1063-7818
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ABSORPTION
BEAMS
DECAY
DISPERSIONS
ELECTRON BEAMS
ELEMENTS
ENERGY LEVELS
EXCITED STATES
FLUIDS
GASES
LEPTON BEAMS
MIXTURES
NONMETALS
PARTICLE BEAMS
PRESSURE RANGE
PRESSURE RANGE MEGA PA
PRESSURE RANGE MEGA PA 10-100
QUENCHING
RARE GASES
SORPTION