Associative ionization of uranium and thorium in collisions with ozone

Journal Article · Fri Sep 01 00:00:00 EDT 1978 · J. Chem. Phys.; (United States)

DOI:https://doi.org/10.1063/1.436818· OSTI ID:6694179

Patterson, T A; Siegel, M W; Fite, W L

Associative ionization channels in the U and Th with O/sub 3/ systems are observed in a crossed beams apparatus with positive and negative ion mass spectrometric detection, and cross sections for open channels are measured. Electron impact ionization is used to measure beam intensities. The ozone beam is modulated, and phase spectrometry is used to demonstrate ozone beam purity. Measured cross sections (labeled by charge products) are 2 x 10/sup -16/(UO/sup +//sub 2/,e),2 x 10/sup -16/(UO/sup +/,e), 2 x 10/sup -19/(ThO/sup +//sub 3/,e),1 x 10/sup -17/(ThO/sup +//sub 2/,e), 4 x 10/sup -16/(ThO/sup +/,e),1 x 10/sup -18/(ThO/sup +/,O/sup -//sub 2/), and 2 x 10/sup -18/(ThO/sup +//sub 2/,O/sup -/) cm/sup 2/ multiplied by the ratio of the cross sections for the production of O/sup +//sub 2/ by electron impact ionization of O/sub 3/ and O/sub 2/, and in the case of thorium, also multiplied by the ratio of thorium and uranium electron impact ionization cross sections.

• Research Organization: Extranuclear Laboratories, Inc., Pittsburg, Pennsylvania 15238
• OSTI ID: 6694179
• Journal Information: J. Chem. Phys.; (United States), Vol. 69:5
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
OZONE
ATOM-MOLECULE COLLISIONS
THORIUM
URANIUM
ATOMIC BEAMS
CROSS SECTIONS
IONIZATION
MASS SPECTROSCOPY
MOLECULAR BEAMS
ACTINIDES
ATOM COLLISIONS
BEAMS
COLLISIONS
ELEMENTS
METALS
MOLECULE COLLISIONS
SPECTROSCOPY
640304* - Atomic
Molecular & Chemical Physics- Collision Phenomena