Production and loss of multiply charged and molecular ions (Kr/sup +/, Kr/sup 2 +/, Kr/sup 3 +/, Kr/sup 4 +/, Kr/sub 2//sup +/) in a krypton hollow cathode discharge

Journal Article · Mon Jan 15 00:00:00 EST 1979 · J. Chem. Phys.; (United States)

OSTI ID:6358007

Howorka, F; Kuen, I

The formation of the ions Kr/sup +/, Kr/sup 2 +/, Kr/sup 3 +/, Kr/sup 4 +/, and Kr/sub 2//sup +/ and their losses are studied in a low pressure krypton hollow cathode discharge. From the maintenance voltage as dependent on pressure, the electron impact ionization rate is calculated. The loss processes include single and double electron transfer to the high charge states and volume recombination for Kr/sup +//sub 2/. The following loss rate coefficients are obtained: Kr/sup 2 +/ (k<5 x 10/sup -13/ cm/sup 3/s/sup -1/), Kr/sup 3 +/ (k= (1.9 +- 0.7) x 10/sup -11/ cm/sup 3/s/sup -1/), Kr/sup 4 +/ (kapprox. = (1 +- 0.7) x 10/sup -10/ cm/sup 3/s/sup -1/), Kr/sup +//sub 2/ (recombination coefficient ..cap alpha.. = (5.5 +- 3.5) x 10/sup -7/ cm/sup 3/s/sup -1/ for T/sub e/=1200 /sup 0/K).

• Research Organization: Institut fuer Atomphysik der Universitaet, A-6020 Innsbruck, Austria
• OSTI ID: 6358007
• Journal Information: J. Chem. Phys.; (United States), Vol. 70:2
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
74 ATOMIC AND MOLECULAR PHYSICS
ELECTRIC DISCHARGES
KINETICS
ELECTRON-ION COLLISIONS
IONIZATION
KRYPTON IONS
ELECTRON TRANSFER
MOLECULAR IONS
MULTICHARGED IONS
RECOMBINATION
CHARGED PARTICLES
COLLISIONS
ELECTRON COLLISIONS
ION COLLISIONS
IONS
700100* - Fusion Energy- Plasma Research
640304 - Atomic
Molecular &amp; Chemical Physics- Collision Phenomena