Collisional Quenching of Metastable X-Ray-Emitting States in a Fast Beam of He-like Fluorine

22 March 1976

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 36 (12) , 664-667
https://doi.org/10.1103/physrevlett.36.664

Abstract

High-resolution x-ray spectral measurements are used to determine the relative intensity of He-like fluorine x-ray transitions,

2 {}^{3}P_{1} \to 1 {}^{1}S_{0}

and

2 {}^{1}P_{1} \to 1 {}^{1}S_{0}

, produced in 30-MeV

F^{5 +}

collisions with Ne, Ar, and Kr gas targets at various pressures. The relative intensities are observed to be strong functions of both gas pressure and target

Z

. The data permit extraction for the first time of the total quenching cross sections (

σ_{Q}

) for fast fluorine ions in the

1 s 2 p {}^{3}P_{1}

state. The measured

σ_{Q}

are found to be approximately geometrical in size.

Keywords

This publication has 4 references indexed in Scilit:

$K$ x-ray transitions in one- and two-electron oxygen and fluorine projectiles produced in helium, neon, and argon targets
Physical Review A, 1974
One- and Two-Electron Excited States Produced by Electron Exchange, Excitation, and Electron Capture in Collisions of Fluorine Ions in Argon Gas at 34.8 MeV
Physical Review Letters, 1973
Forbidden decay modes of one- and two-electron ions
Nuclear Instruments and Methods, 1973
Exponential Projectile Charge Dependence of $Ar K$ and $Ne K$ X-Ray Production by Fast, Highly Ionized Argon Beams in Thin Neon Targets
Physical Review Letters, 1973