Results 221 to 230 of about 127,912 (263)

Highly charged ions

Journal of Physics B: Atomic, Molecular and Optical Physics, 2001
This paper reviews some of the fundamental properties of highly charged ions, the methods of producing them (with particular emphasis on table-top devices), and their use as a tool for both basic science and applied technology. Topics discussed include: charge dependence and scaling laws along isoelectronic or isonuclear sequences (for wavefunction ...
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Beta decay of highly charged ions

Hyperfine Interactions, 1999
Nuclear beta-decay probabilities are influenced, sometimes dramatically, by the charge state of the corresponding atom, i.e., the number of bound electrons. In the ESR cooler ring at Darmstadt, beta-decay properties of highly charged ions could be measured for the first time.
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Highly Charged Ions in Astrophysics

Physica Scripta, 1974
The study of highly ionized atoms in astrophysical sources is reviewed with particular reference to the spectroscopy of the sun. The range of spectroscopic observations is surveyed in terms of the general properties of the solar atmosphere. Such spectra contain important information on the physical properties of the emitting regions.
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Ion channels formed by a highly charged peptide

Biochemistry, 1991
A peptide (MA-beta) corresponding to a segment of the nicotinic acetylcholine receptor (AChR) that has amphipathic alpha-helical periodicity forms ion channels in artificial phospholipid bilayers. The MA-beta ion channels are very stable, comprise two discrete conductance states, and undergo rapid, flickering-type closings. The discrete-conductance ion
P, Ghosh, R M, Stroud
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Surface nanostructures by single highly charged ions

Journal of Physics: Condensed Matter, 2009
It has recently been demonstrated that the impact of individual, slow but highly charged ions on various surfaces can induce surface modifications with nanometer dimensions. Generally, the size of these surface modifications (blisters, hillocks, craters or pits) increases dramatically with the potential energy of the highly charged ion, while the ...
Facsko, S., Heller, R., El-Said, A., Meissl, W., Aumayr, F.   +4 more
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Charge-sharing dynamics of dissociating highly charged ions

Physical Review A, 2020
Low-energy collision experiments of ${\mathrm{Ar}}^{8+}$ with acetylene (${\mathrm{C}}_{2}{\mathrm{H}}_{2}$) molecules were conducted, and four-body dissociation of highly ionized acetylene was studied focusing on charge-sharing dynamics in two dissociating carbon (C) ions. When the C ions shared three positive charges, the kinetic energy distributions
J. Matsumoto, Y. Iwasaki, H. Shiromaru, G. Veshapidze   +3 more
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Production of highly charged ion beams with SECRAL

Review of Scientific Instruments, 2010
Superconducting electron cyclotron resonance ion source with advanced design in Lanzhou (SECRAL) is an all-superconducting-magnet electron cyclotron resonance ion source (ECRIS) for the production of intense highly charged ion beams to meet the requirements of the Heavy Ion Research Facility in Lanzhou (HIRFL).
L T, Sun, H W, Zhao, W, Lu, X Z, Zhang, Y C, Feng, J Y, Li, Y, Cao, X H, Guo, H Y, Ma, H Y, Zhao, Y, Shang, B H, Ma, H, Wang, X X, Li, T, Jin, D Z, Xie   +15 more
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An electrostatic deceleration lens for highly charged ions

Review of Scientific Instruments, 2010
The design and implementation of a purely electrostatic deceleration lens used to obtain beams of highly charged ions at very low energies is presented. The design of the lens is such that it can be used with parallel as well as diverging incoming beams and delivers a well focused low energy beam at the target.
J, Rajput, A, Roy, D, Kanjilal, R, Ahuja, C P, Safvan   +4 more
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Electron correlation in highly-charged-ion collisions

Physical Review A, 1992
We have used the coupled-channel method to study the significance of electron correlation in the reaction mechanism for two-electron capture in ${\mathrm{C}}^{5+}$-He collisions. Two different sets of calculations were performed. While the static correlation energy was generally included in the calculations, further correlation effects were ignored in ...
, Hansen, , Taulbjerg
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Production of highly charged ions for ion–surface interaction studies

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2007
We give an overview of the production of highly charged ions in the room-temperature Dresden EBIT and its successors, the Dresden EBIS and Dresden EBIS-A, and their application in different areas. Due to their compact design they are favored for the study and use of the interaction of ions with surfaces. In particular, interaction processes with highly
Zschornack, G., Grossmann, F., Heller, R., Kentsch, U., Kreller, M., Landgraf, S., Ovsyannikov, V. P., Schmidt, M., Ullmann, F.   +8 more
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