R J Tweed

743 total citations
31 papers, 621 citations indexed

About

R J Tweed is a scholar working on Atomic and Molecular Physics, and Optics, Radiation and Spectroscopy. According to data from OpenAlex, R J Tweed has authored 31 papers receiving a total of 621 indexed citations (citations by other indexed papers that have themselves been cited), including 31 papers in Atomic and Molecular Physics, and Optics, 13 papers in Radiation and 13 papers in Spectroscopy. Recurrent topics in R J Tweed's work include Atomic and Molecular Physics (31 papers), Mass Spectrometry Techniques and Applications (13 papers) and X-ray Spectroscopy and Fluorescence Analysis (12 papers). R J Tweed is often cited by papers focused on Atomic and Molecular Physics (31 papers), Mass Spectrometry Techniques and Applications (13 papers) and X-ray Spectroscopy and Fluorescence Analysis (12 papers). R J Tweed collaborates with scholars based in France, United Kingdom and Italy. R J Tweed's co-authors include F Gelebart, A. Pochat, B. Piraux, C. J. Joachain, O Robaux, François-Henry Rouet, D. R. Bates, L. Avaldi, R. Camilloni and G. Stefani and has published in prestigious journals such as Physical Review A, Journal of Physics B Atomic Molecular and Optical Physics and Zeitschrift für Physik D Atoms Molecules and Clusters.

In The Last Decade

R J Tweed

31 papers receiving 554 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
R J Tweed France	16	620	240	196	145	67	31	621
P Schlemmer Germany	10	599 1.0×	258 1.1×	224 1.1×	151 1.0×	93 1.4×	11	609
J Röder Germany	15	584 0.9×	275 1.1×	243 1.2×	153 1.1×	81 1.2×	20	593
D. H. Madison United States	12	527 0.8×	248 1.0×	190 1.0×	142 1.0×	58 0.9×	17	559
H Winter Austria	16	486 0.8×	230 1.0×	148 0.8×	116 0.8×	91 1.4×	26	540
M. L. A. Raphaelian United States	12	466 0.8×	197 0.8×	183 0.9×	103 0.7×	52 0.8×	33	501
R.K. Peterkop Latvia	10	446 0.7×	135 0.6×	101 0.5×	114 0.8×	40 0.6×	23	457
M Lecas France	10	388 0.6×	159 0.7×	127 0.6×	115 0.8×	59 0.9×	13	397
N. Stolterfoht Germany	9	405 0.7×	157 0.7×	144 0.7×	106 0.7×	45 0.7×	19	413
A. Pochat France	13	348 0.6×	141 0.6×	120 0.6×	75 0.5×	35 0.5×	18	353
A. C. Roy India	11	352 0.6×	125 0.5×	113 0.6×	102 0.7×	68 1.0×	41	364

Countries citing papers authored by R J Tweed

Since Specialization

Citations

This map shows the geographic impact of R J Tweed's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by R J Tweed with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites R J Tweed more than expected).

Fields of papers citing papers by R J Tweed

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by R J Tweed. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by R J Tweed. The network helps show where R J Tweed may publish in the future.

Co-authorship network of co-authors of R J Tweed

This figure shows the co-authorship network connecting the top 25 collaborators of R J Tweed. A scholar is included among the top collaborators of R J Tweed based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with R J Tweed. R J Tweed is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Avaldi, L., et al.. (1998). Absolute measurement of ionization-excitation of helium at intermediate energies and their interpretation. Journal of Physics B Atomic Molecular and Optical Physics. 31(13). 2981–2997. 33 indexed citations

Tweed, R J, et al.. (1996). Semiclassical approach to PCI in (e - 2e) ionization of H: coplanar geometry energy sharing. Journal of Physics B Atomic Molecular and Optical Physics. 29(4). 791–811. 3 indexed citations

Rouet, François-Henry, et al.. (1996). The effect of target atom polarization and wavefunction distortion in (e - 2e) ionization of hydrogen. Journal of Physics B Atomic Molecular and Optical Physics. 29(9). 1767–1783. 20 indexed citations

Tweed, R J, et al.. (1991). Pseudostate bases including an L²description of the continuum for use in e^--He collision calculations. Journal of Physics B Atomic Molecular and Optical Physics. 24(7). 1779–1801. 2 indexed citations

Robaux, O, et al.. (1991). Wavefunction effects in theoretical (e,2e) cross sections for ionization of helium with excitation of the residual ion. Journal of Physics B Atomic Molecular and Optical Physics. 24(21). 4567–4581. 9 indexed citations

Gelebart, F & R J Tweed. (1990). Absolute cross sections for 100 eV electron impact ionization of helium in a symmetric energy-sharing geometry. Journal of Physics B Atomic Molecular and Optical Physics. 23(20). L641–L647. 27 indexed citations

Tweed, R J, et al.. (1987). Wavefunction effects in the calculation of cross sections for electron impact ionisation of helium at high energy. Journal of Physics B Atomic and Molecular Physics. 20(19). 5213–5232. 27 indexed citations

Tweed, R J, et al.. (1987). Ionisation of helium by 8 keV electrons: a first Born calculation using distorted waves and correlated initial-state wavefunctions. Journal of Physics B Atomic and Molecular Physics. 20(8). L259–L264. 8 indexed citations

Tweed, R J. (1980). Triple differential cross section for the ionisation of helium by electronic impact. Journal of Physics B Atomic and Molecular Physics. 13(22). 4467–4479. 19 indexed citations

10.

Tweed, R J, et al.. (1976). Autoionization by electron impact: experiment with He. Journal of Physics B Atomic and Molecular Physics. 9(10). 1739–1748. 50 indexed citations

11.

Tweed, R J, et al.. (1976). Autoionization by electron impact: experiments on Ar, Kr and Xe. Journal of Physics B Atomic and Molecular Physics. 9(15). 2643–2656. 20 indexed citations

12.

Tweed, R J. (1976). Autoionization of helium by electron impact: theory incorporating exchange. Journal of Physics B Atomic and Molecular Physics. 9(10). 1725–1737. 20 indexed citations

13.

Bates, D. R. & R J Tweed. (1974). Impact parameter treatment of H⁺-H collisions. Journal of Physics B Atomic and Molecular Physics. 7(1). 117–126. 12 indexed citations

14.

Gelebart, F, et al.. (1974). Measurement of the absolute differential cross section for autoionization from the levels (2s2p)³P and (2s²)¹S of helium. Journal of Physics B Atomic and Molecular Physics. 7(6). L174–L178. 15 indexed citations

15.

Tweed, R J. (1973). Double ionization by electron impact: I. General theory. Journal of Physics B Atomic and Molecular Physics. 6(2). 259–269. 11 indexed citations

16.

Tweed, R J. (1973). Double ionization by electron impact: II. Calculations of cross sections for H^-, He and Li⁺. Journal of Physics B Atomic and Molecular Physics. 6(2). 270–285. 50 indexed citations

17.

Tweed, R J. (1973). Double ionization-a reply to the comments of Byron, Joachain and van der Wiel. Journal of Physics B Atomic and Molecular Physics. 6(12). L378–L380. 3 indexed citations

18.

Tweed, R J. (1973). Excited state wavefunctions for helium. Journal of Physics B Atomic and Molecular Physics. 6(5). 770–781. 9 indexed citations

19.

Tweed, R J. (1973). The second Born approximation for ionization. Journal of Physics B Atomic and Molecular Physics. 6(3). 398–405. 9 indexed citations

20.

Tweed, R J. (1972). Correlated wavefunctions for helium-like atomic systems. Journal of Physics B Atomic and Molecular Physics. 5(4). 810–819. 40 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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