Results 201 to 210 of about 4,400,052 (218)
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Ion-ion recombination in an ambient ion gas
Journal of Physics B: Atomic and Molecular Physics, 1982Attention is drawn to collisional ion-ion recombination X++Y-+X+ (or Y-) to XY+X+ (or Y-) which can be important when the ion density ni is very high. If, for example, X+ is Kr+ and Y- is F- the recombination coefficient alpha i is 3.0*10-7 (300/ theta )4.5(ni/1015) cm3 s-1 where theta is the temperature.
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Ion Pumps, Ion Pathways, Ion Sites
1986There has been a rapidly growing list of ATP-fueled ion pumps. Most of these are H+-transporting ATPases ranging from the mitochondrial F1F0 ATPase through the H+ pump of intracellular organelles to the gastric H+-K+ ATPase (Racker, 1976; Cidon and Nelson, 1983; Sachs et al, 1976).
John Cuppoletti +6 more
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Production and ion-ion cooling of highly charged ions in electron string ion source
Review of Scientific Instruments, 2009The scheme of an internal injection of Au atoms into the working space of the “Krion-2” electron string ion source (ESIS) was applied and tested. In this scheme Au atoms are evaporated from the thin tungsten wire surface in vicinity of the source electron string. Ion beams with charge states up to Au51+ were produced.
E. E. Donets +5 more
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2003
Ion-ion collisions belong to the fundamental processes in all types of plasmas in astrophysical objects (e.g. the earth’s ionoshpere or the solar corona) as well as in laboratory discharges (for example in thermonuclear fusion). The knowledge of cross sections for ion-ion collision processes is therefore essential for the modeling of these plasmas.
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Ion-ion collisions belong to the fundamental processes in all types of plasmas in astrophysical objects (e.g. the earth’s ionoshpere or the solar corona) as well as in laboratory discharges (for example in thermonuclear fusion). The knowledge of cross sections for ion-ion collision processes is therefore essential for the modeling of these plasmas.
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Positive Ion Transmission Mode Ion/Ion Reactions in a Hybrid Linear Ion Trap
Analytical Chemistry, 2004A triple quadrupole mass spectrometer capable of ion trapping experiments has been adapted for ion/ion reaction studies. The instrument is based on a commercially available linear ion trap (LIT) tandem mass spectrometer (i.e., an MDS SCIEX 2000 Q TRAP) that has been modified by mounting an atmospheric sampling glow discharge ionization (ASGDI) source ...
Frank A. Londry +4 more
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1986
Let us start by asking three questions. What types of ion-ion reaction have been studied? Why are these studies worthwhile? Where can more detailed information be found?
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Let us start by asking three questions. What types of ion-ion reaction have been studied? Why are these studies worthwhile? Where can more detailed information be found?
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Cross section of ion excitation in ion-ion collision
Physics Letters A, 1979Abstract The “effective Feynman diagram” technique introduced in a previous paper is used to express the cross section of ion excitation in ion-ion collisions (A + B → A ∗ + B) in terms of the corresponding photon resonance absorption (hv + A → A ∗ ) and Thomson-scattering ( hv + B → hv + B ) cross sections.
David Salzmann, Shalom Eliezer
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ChemInform Abstract: Organometallic Ions and Ion Pairs
ChemInform, 1991AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
T. Michael Bockman, Jay K. Kochi
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Electron-Ion and Ion Ion Recombination Processes
1994Publisher Summary This chapter discusses electron–ion and ion–ion recombination processes. Recombination processes have historically been distinguished by the mechanism responsible for disposal of the excess energy of recombination via radiative decay, dissociation or collision with third bodies. When intermediate resonant states become involved, the
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Electron-Ion and Ion-Ion Collisions in Astrophysics
1986There has long been a close association between astrophysical studies and the development of atomic collision theory. This interaction took a major step forward when, some forty years ago, the real nature of the solar corona was first understood as a very hot tenuous plasma.
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