Quenching of Metastable 5 s'(P-3(0)) Krypton Atoms in Collisions with Krypton and Argon Atoms in High-Pressure Laser Mixtures

摘要

We use an absorption probe method to study collisional quenching of the metastable 5aEuro,s 'aEuro parts per thousand[1/2] (0) (o) (P-3(0)) Kr atom in electron-beam-excited high-pressure Ar-Kr mixtures with a small content of krypton. The rate constants for plasma-chemical reactions Kr* + Kr + Ar -> aEuro parts per thousand Kr (2) (*) + Ar((5.3 +/- 0.8) a <...aEuro parts per thousand 10(-aEuro parts per thousand 33)cm(6)/s), Kr-* + 2 Ar -> ArKr* + Ar ((4.6 +/- 1.4)center dot 10(-36) cm(6)/s) and Kr-* + Ar -> products + Ar ((4.1 +/- 0.6)center dot 10(-15) cm(3)/s) are measured for the first time.