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Physics Today, 1949
There is a good deal to physics besides nuclei, uncertainty, and relativity, as every hopeful student learns. Much of it, however, has disappeared from the forefront of science, some of it moving to the engineers, and the rest remaining mostly a storehouse of tools, useful in the free-for-all attack on the current frontier.
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There is a good deal to physics besides nuclei, uncertainty, and relativity, as every hopeful student learns. Much of it, however, has disappeared from the forefront of science, some of it moving to the engineers, and the rest remaining mostly a storehouse of tools, useful in the free-for-all attack on the current frontier.
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Space-charge relaxation in perovskites
Physical Review B, 1994We report a dielectric anomaly in several perovskites at intermediate frequencies 10\ensuremath{\le}f\ensuremath{\le}${10}^{7}$ Hz in the temperature range 400 \ifmmode^\circ\else\textdegree\fi{}C \ensuremath{\le}T\ensuremath{\le}800 \ifmmode^\circ\else\textdegree\fi{}C.
, Bidault +4 more
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AIP Conference Proceedings, 2003
Based on a recent ICFA mini‐workshop held in Oxford, England [1], this paper surveys the computer codes available for simulating the behaviour of charged particle beams under space charge. Modelling tools for both linear and circular accelerating systems are covered. Lists of recent comparisons code v. code and code v. experiment are given and a set of
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Based on a recent ICFA mini‐workshop held in Oxford, England [1], this paper surveys the computer codes available for simulating the behaviour of charged particle beams under space charge. Modelling tools for both linear and circular accelerating systems are covered. Lists of recent comparisons code v. code and code v. experiment are given and a set of
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Contemporary Physics, 1967
Electric currents in solids are usually associated with the presence of electrons which are free to move under the influence of a field.
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Electric currents in solids are usually associated with the presence of electrons which are free to move under the influence of a field.
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Space Charge between Parallel Planes
American Journal of Physics, 1954The problem of the potential distribution between two parallel planes at the same potential as a function of the current density passing between the planes is analyzed by successive approximation resulting in power series. The method involves a consideration of the influence of space charge on transit time, and the leading terms of the Maclaurin's ...
Copeland, Paul L., Sachs, Lester M.
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Space Charge Compensation with DCI
1980Extensive tests of space charge compensation, at the energy of.8 GeV, in similar conditions to those of the e+e− configuration are reported. Stability regions, smaller in size than those observed in that configuration, are found to decrease rapidly with current. Up to the limit, the beam cross-section stays constant.
Le Duff, J. +4 more
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1976
Space charge polarisation is first defined and those aspects of it which will and will not be considered at length are distinguished. Basic equations of charge motion in solids and liquids are discussed for the situation where a single mobility is an adequate approximation for each mobile species.
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Space charge polarisation is first defined and those aspects of it which will and will not be considered at length are distinguished. Basic equations of charge motion in solids and liquids are discussed for the situation where a single mobility is an adequate approximation for each mobile species.
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1977
Separation of charge into double layers is a common occurrence at a solid surface. At times the phenomenon can be interpreted simply in terms of two plane sheets of charge. On a metal with an adsorbed layer of oxygen, where the oxygen has a large negative partial charge and the surface layer of the metal an equal and opposite positive charge, the ...
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Separation of charge into double layers is a common occurrence at a solid surface. At times the phenomenon can be interpreted simply in terms of two plane sheets of charge. On a metal with an adsorbed layer of oxygen, where the oxygen has a large negative partial charge and the surface layer of the metal an equal and opposite positive charge, the ...
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AIP Conference Proceedings, 1990
We examine the feasibility of creating an electric space‐charge field of order 109 V/m using radial and axial focussing on a pulsed beam of 200 MeV H− ions. When a bunch of H− ions is focussed into a disc‐shaped concentration, the electric field is uniform and the electrons are shed abruptly, leaving a neutral beam of H0. Subsequent stripping of the H0
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We examine the feasibility of creating an electric space‐charge field of order 109 V/m using radial and axial focussing on a pulsed beam of 200 MeV H− ions. When a bunch of H− ions is focussed into a disc‐shaped concentration, the electric field is uniform and the electrons are shed abruptly, leaving a neutral beam of H0. Subsequent stripping of the H0
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The space charge smoothing factor
Journal of the Institution of Electrical Engineers, 1951The author has recently expressed the properties of a planar diode in terms of a set of differential coefficients, many of which can be experimentally determined. In the present paper these differential coefficients are used to derive a relation between the anode-current fluctuations and the fluctuation in the total emission.The fluctuation in the ...
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