This map shows the geographic impact of H. P. Summers'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 H. P. Summers with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites H. P. Summers more than expected).
This network shows the impact of papers produced by H. P. Summers. 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 H. P. Summers. The network helps show where H. P. Summers may publish in the future.
Co-authorship network of co-authors of H. P. Summers
This figure shows the co-authorship network connecting the top 25 collaborators of H. P. Summers.
A scholar is included among the top collaborators of H. P. Summers 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 H. P. Summers. H. P. Summers is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Summers, H. P., William J. Dickson, M. O’Mullane, et al.. (2006). Ionization state, excited populations and emission of impurities in dynamic finite density plasmas: I. The generalized collisional-radiative model for light elements. Strathprints: The University of Strathclyde institutional repository (University of Strathclyde).120 indexed citations
Badnell, N. R., M. O’Mullane, H. P. Summers, et al.. (2003). Dielectric recombination data for dynamic finite-density plasmas I. Goals and methodology. Strathprints: The University of Strathclyde institutional repository (University of Strathclyde).118 indexed citations
Brooks, David H., A. Fludra, R. A. Harrison, et al.. (2000). A study of opacity in SOHO-SUMER and SOHO-CDS spectral observations. I. Opacity deduction at the limb. Max Planck Institute for Plasma Physics. 357(2). 697–715.1 indexed citations
Summers, H. P., H. Anderson, Mathias Brix, et al.. (1999). Electron and neutral interactions with impurities in divertor plasmas. Plasma Physics Reports. 25(1). 15–27.1 indexed citations
Hoekstra, R., et al.. (1998). Atomic and molecular data and their applications.6 indexed citations
14.
Bray, Igor, et al.. (1995). Excitation of He(2(1,3)S) by electron impact. Nuclear Fusion. 6. 7–26.1 indexed citations
15.
Hoekstra, R., et al.. (1992). CHARGE-TRANSFER IN COLLISIONS OF PROTONS WITH HELIUM. Nuclear Fusion. 3. 63–69.2 indexed citations
16.
Hoekstra, R., et al.. (1992). NEW ASSESSMENT OF CROSS-SECTION DATA FOR HELIUM EXCITATION BY PROTONS. Nuclear Fusion. 3. 47–50.3 indexed citations
17.
Summers, H. P., et al.. (1992). REQUIREMENTS FOR COLLISION DATA ON THE SPECIES HELIUM, BERYLLIUM AND BORON IN MAGNETIC CONFINEMENT FUSION. Nuclear Fusion. 3. 7–18.2 indexed citations
18.
Hoekstra, R., et al.. (1992). EXCITATION OF NEUTRAL HELIUM BY ELECTRON-IMPACT. Nuclear Fusion. 3. 19–32.5 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.