Top 100 Scientists

World Top 100 Scientists 2025

Top 100 scientists can be ranked globally or specific to the following regions including Africa, Asia, Europe, North America, Latin America, Oceania, Arab League, ASEAN, EECA, and BRICS based on total H-index scores without any breakdown by subject areas. Top 100 rankings in the world, in a continent, or a region include standardized subjects areas of Agriculture & Forestry, Arts, Design and Architecture, Business & Management, Economics & Econometrics, Education, Engineering & Technology, History, Philosophy, Theology, Law/Law and Legal Studies, Medical and Health Sciences, Natural Sciences, Social Sciences, Art and Humanities Rankings and Social Sciences and Humanities Rankings BETA VERSION. Subject field ranking in world, region, country and university is beta version since subject field "others" (873,864 scientists profile whose branch cannot be determined, not yet edited or determined) is excluded, so the ranking will change as the others fields are edited. Please note that. Subjects indicated as “ * others ” will not be included in the ranking by regions and subjects.

* Rankings
Ranking Based On Selection :1
Smj Mortazavi
Cancer
Space Biology
Radiation Protection
Non-Ionizing Radiation
LDRT
Metrics
H-Index
i10 Index
Citation
39
180
7,380
Abolhasan Rezaeyan
Medical Physics
Medical Imaging
Radiobiology
Radiotherapy
Metrics
H-Index
i10 Index
Citation
20
26
1,626
Hossein Chehre
Medical Physics
Medical Imaging
Image Processing
Python Based AI
Metrics
H-Index
i10 Index
Citation
2
0
10
Maliheh Rostamyari
Medical physics
Radiobiology
Radioprotector
Geneome instability & DNA repair mechanisms
Metrics
H-Index
i10 Index
Citation
2
0
6
Rankings
Ranking Based On Selection: 1
Smj Mortazavi
Metrics
H-Index
i10 Index
Citation Counts
39
180
7,380
Cancer
Space Biology
Radiation Protection
Non-Ionizing Radiation
LDRT
Rankings
Ranking Based On Selection: 2
Alireza Mehdizadeh|Alireza Mehdizadeh tazangi
Metrics
H-Index
i10 Index
Citation Counts
28
63
2,986
Rankings
Ranking Based On Selection: 3
Abolhasan Rezaeyan
Metrics
H-Index
i10 Index
Citation Counts
20
26
1,626
Medical Physics
Medical Imaging
Radiobiology
Radiotherapy
Rankings
Ranking Based On Selection: 4
Hossein Chehre
Metrics
H-Index
i10 Index
Citation Counts
2
0
10
Medical Physics
Medical Imaging
Image Processing
Python Based AI
Rankings
Ranking Based On Selection: 5
Maliheh Rostamyari
Metrics
H-Index
i10 Index
Citation Counts
2
0
6
Medical physics
Radiobiology
Radioprotector
Geneome instability & DNA repair mechanisms