Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies
if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the
same subfield and year (this is the minimum needed to enter the top 1%, not the average
within it), or reaches the top citation threshold in at least one of its specific research
topics.
Nuclear Tracks in Solids
19691.1k citationsR. L. Fleischer, R. M. Walker et al.profile →
This map shows the geographic impact of R. M. Walker'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. M. Walker with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites R. M. Walker more than expected).
This network shows the impact of papers produced by R. M. Walker. 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. M. Walker. The network helps show where R. M. Walker may publish in the future.
Co-authorship network of co-authors of R. M. Walker
This figure shows the co-authorship network connecting the top 25 collaborators of R. M. Walker.
A scholar is included among the top collaborators of R. M. Walker 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. M. Walker. R. M. Walker is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Brewer, LaPrincess C., Karen L. Fortuna, Clarence Jones, et al.. (2019). Back to the Future: Achieving Health Equity Through Health Informatics and Digital Health. JMIR mhealth and uhealth. 8(1). e14512–e14512.230 indexed citations breakdown →
3.
Stadermann, F. J., R. M. Walker, & E. Zinner. (1999). NanoSIMS: The Next Generation Ion Probe for the Microanalysis of Extraterrestrial Material. Meteoritics and Planetary Science Supplement. 34.5 indexed citations
4.
Nittler, L. R., et al.. (1995). 30Ar-40Ar Ages of Silicates from IIE Iron Meteorites. Meteoritics and Planetary Science. 30(5). 508.6 indexed citations
5.
Walker, R. M.. (1993). LEONARD MEDAL ADDRESS: Searching for Interesting Needles in the Meteoroid Haystack. Meteoritics and Planetary Science. 28. 454.11 indexed citations
6.
Clemett, S. J., Claude R. Maechling, Richard N. Zare, P. D. Swan, & R. M. Walker. (1993). Measurement of polycyclic aromatic hydrocarbon (PAHs) in interplanetary dust particles. 309.4 indexed citations
7.
Alexander, C. M. O'd., M. Maurette, P. D. Swan, & R. M. Walker. (1992). Studies of Antarctic Micrometeorites. Lunar and Planetary Science Conference. 23. 7.2 indexed citations
8.
McKeegan, K. D., et al.. (1984). D/H ratios in interplanetary dust and their relationship to IR, Raman and EDX observations. Meteoritics and Planetary Science. 19. 159.4 indexed citations
9.
McKeegan, K. D., R. M. Walker, & E. Zinner. (1983). Light Element Distributions Within Individual Interplanetary Dust Particles. Meteoritics and Planetary Science. 18. 354.2 indexed citations
10.
Fraundorf, P., K. D. McKeegan, Rahul Patel, et al.. (1982). Multidisciplinary Studies of Individual Stratospheric Micrometeorites. LPI. 229–230.1 indexed citations
11.
Sandford, S. A., P. Fraundorf, Rahul Patel, & R. M. Walker. (1982). Laboratory Infrared Spectra of Interplanetary Dust. Meteoritics and Planetary Science. 17. 276.2 indexed citations
12.
Walker, R. M., et al.. (1975). Fossil fission track studies in Allende inclusions. Metic. 10. 488.1 indexed citations
13.
Audouze, J., Jean‐Pierre Bibring, J.-C. Dran, et al.. (1975). Evidence for heavily irradiated grains in carbonaceous chondrites. Meteoritics and Planetary Science. 10. 358.1 indexed citations
14.
Crozaz, G., R. J. Drozd, C. M. Hohenberg, et al.. (1974). Lunar surface dynamics: Some general conclusions and new results from Apollo 16 and 17. Lunar Science Conference. 3. 2475–2499.26 indexed citations
15.
Yuhas, D. & R. M. Walker. (1974). Long Term Behavior of VH Cosmic Rays as Observed in Lunar Rocks. International Cosmic Ray Conference. 2. 1116.1 indexed citations
16.
Zinner, E., R. M. Walker, J. Borg, & M. Maurette. (1974). Apollo 17 lunar surface cosmic ray experiment - Measurement of heavy solar wind particles. Lunar and Planetary Science Conference Proceedings. 3. 2975–2989.2 indexed citations
17.
Walker, R. M., et al.. (1973). Solar flare proton spectrum averaged over the last 5000 years. Lunar and Planetary Science Conference Proceedings. 4. 2489.1 indexed citations
18.
Crozaz, G., et al.. (1972). Solar flare and galactic cosmic ray studies of Apollo 14 and 15 samples.. Lunar and Planetary Science Conference Proceedings. 3. 2917.24 indexed citations
19.
Blanford, G. E., M. W. Friedlander, J. Klarmann, R. M. Walker, & J. P. Wefel. (1972). The origin and propagation of VVH primary cosmic ray particles. International Cosmic Ray Conference. 1. 275.1 indexed citations
20.
Fleischer, R. L., P. Buford Price, & R. M. Walker. (1964). FOSSIL RECORDS OF NUCLEAR FISSION. The New Scientist.1 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.