Zobrazeno 1 - 10 of 57 pro vyhledávání: '"M. R. H. Rudge"'
1
A comparison between R-matrix and variational procedures
Autor: M R H Rudge
Publikováno v: Journal of Physics A: Mathematical and General. 36:1485-1492
A class of variational methods that can be used in solving either bound state problems or those that involve scattering by a potential is reviewed with particular regard to the constraints that it is necessary to impose upon the basis functions. The
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c576aff2e2f9202ef4d0594212c60572
https://doi.org/10.1088/0305-4470/36/5/320
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2
A variational method for scattering calculations
Autor: M R H Rudge
Publikováno v: Journal of Physics B: Atomic, Molecular and Optical Physics. 33:4505-4511
A variational method is described that is of value in either single- or many-channel scattering problems. Its use is exhibited in a number of test cases.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5b22ecc0e5b9b15971778ec32f135ae8
https://doi.org/10.1088/0953-4075/33/20/322
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3
The estimation of potential energy curves for diatomic molecules
Autor: M R H Rudge, J E Blackwood, G A Robinson
Publikováno v: Journal of Physics B: Atomic, Molecular and Optical Physics. 33:1185-1191
The Fourier grid method is used to deduce potential energy curves from spectroscopic data. The results are compared with those of ab initio calculations for H2 and with RKR method data for Na2 .
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c3499b367d6aa79d23e229ed6992ac83
https://doi.org/10.1088/0953-4075/33/6/305
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4
A calculation of ionization amplitudes for e--H scattering
Autor: M R H Rudge
Publikováno v: Journal of Physics B: Atomic, Molecular and Optical Physics. 33:1223-1235
A simple procedure that takes account of dynamical screening in the final state and in which the two electrons are treated in an equivalent fashion, is used to calculate ionization amplitudes for e- -H collisions in the near-threshold region. Results
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https://doi.org/10.1088/0953-4075/33/6/309
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5
Ionization in the monopole model of electron - atomic - hydrogen scattering
Autor: M R H Rudge
Publikováno v: Journal of Physics B: Atomic, Molecular and Optical Physics. 29:4689-4698
The boundary conditions and the conservation conditions are discussed for - H ionization within the framework of the s-wave monopole model and a scheme is described for calculating the energy-differential cross section. Illustrative calculations, usi
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https://doi.org/10.1088/0953-4075/29/20/021
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6
A numerical solution of the monopole model of electron-atomic hydrogen scattering
Autor: M R H Rudge
Publikováno v: Journal of Physics B: Atomic, Molecular and Optical Physics. 28:2703-2709
A procedure is described for developing numerical solutions to the monopole model of the e--H scattering problem. Chebyshev collocation is used to generate an approximate solution and a K-matrix that includes contributions from the continuum states.
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https://doi.org/10.1088/0953-4075/28/13/020
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8
Electron-atomic hydrogen scattering with coupling to the continuum
Autor: M R H Rudge
Publikováno v: Journal of Physics B: Atomic, Molecular and Optical Physics. 25:L117-L122
A procedure is described whereby coupling to the continuum is allowed for in the description of the e--H scattering process. The method is applied to elastic scattering and its is shown that the method converges more rapidly than when only coupling t
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a11f43a63d7763c16bd6754790297f89
https://doi.org/10.1088/0953-4075/25/4/006
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9
Hadamard methods in collision experiments
Autor: M R H Rudge
Publikováno v: Measurement Science and Technology. 2:89-92
It is shown that in collision experiments an enhanced signal to noise ratio can be achieved in principle through the simultaneous measurement of several cross sections. The measurements of differential, total and coincidence cross sections are discus
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https://doi.org/10.1088/0957-0233/2/1/016
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10
The S-matrix Kohn variational procedure
Autor: M R H Rudge
Publikováno v: Journal of Physics B: Atomic, Molecular and Optical Physics. 23:4275-4279
The S-matrix version of the Kohn variational procedure is examined. It is shown that the method is a particular case of other Kohn variational procedures which have the limitation that they give results that are dependent on the asymptotic form chose
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https://doi.org/10.1088/0953-4075/23/23/010
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