Sumi Yokoyama

61 papers and 675 indexed citations i.

About

Sumi Yokoyama is a scholar working on Global and Planetary Change, Radiation and Radiology, Nuclear Medicine and Imaging. According to data from OpenAlex, Sumi Yokoyama has authored 61 papers receiving a total of 675 indexed citations (citations by other indexed papers that have themselves been cited), including 23 papers in Global and Planetary Change, 22 papers in Radiation and 18 papers in Radiology, Nuclear Medicine and Imaging. Recurrent topics in Sumi Yokoyama’s work include Radioactive contamination and transfer (22 papers), Radiation Dose and Imaging (18 papers) and Nuclear physics research studies (11 papers). Sumi Yokoyama is often cited by papers focused on Radioactive contamination and transfer (22 papers), Radiation Dose and Imaging (18 papers) and Nuclear physics research studies (11 papers). Sumi Yokoyama collaborates with scholars based in Japan, United States and Germany. Sumi Yokoyama's co-authors include M. Thoennessen, A. Azhari, R. A. Kryger, E. Ramakrishnan, R. F. Pfaff, J. H. Kelley, Hiroshi Noguchi, L. G. Sobotka, R. J. Charity and P.G. Hansen and has published in prestigious journals such as Physical Review Letters, Physics Letters B and Nuclear Physics A.

In The Last Decade

Co-authorship network of co-authors of Sumi Yokoyama i

Fields of papers citing papers by Sumi Yokoyama

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Sumi Yokoyama. 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 Sumi Yokoyama. The network helps show where Sumi Yokoyama may publish in the future.

Countries citing papers authored by Sumi Yokoyama

Since Specialization
Citations

This map shows the geographic impact of Sumi Yokoyama'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 Sumi Yokoyama with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Sumi Yokoyama more than expected).

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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2025