Citation Rankings
Highly Cited Researchers

International Atomic Energy Agency Highly Cited Researchers CitationOthers Rankings 2025

The Citation Rankings (Highly Cited Researchers) highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.

* Total Citation Counts Rankings
Ranking Based On Selection :1
Austria
Ian Swainson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,691
1,763
0.263
* Total Citation Counts Rankings
Ranking Based On Selection :2
Austria
Ales Fajgelj
Quality Systems Manager
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,221
2,032
0.327
* Total Citation Counts Rankings
Ranking Based On Selection :3
Austria
Gudni Hardarson
Soil Microbiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,517
777
0.172
* Total Citation Counts Rankings
Ranking Based On Selection :4
Austria
Gerd Dercon
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,139
1,478
0.471
* Total Citation Counts Rankings
Ranking Based On Selection :5
Austria
Manuel Welsch
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,136
2,005
0.639
* Total Citation Counts Rankings
Ranking Based On Selection :6
Austria
Mikhail Balonov
radiobiology
radiation protection
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,991
974
0.326
* Total Citation Counts Rankings
Ranking Based On Selection :7
Austria
Joe Hiess
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,777
961
0.541
* Total Citation Counts Rankings
Ranking Based On Selection :8
Austria
Badreddine Barhoumi
Recherche scientifique
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,462
1,047
0.716
* Total Citation Counts Rankings
Ranking Based On Selection :9
Austria
Paul Degnan
site characterisation for radioactive waste disposal
safety case development
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,334
317
0.238
* Total Citation Counts Rankings
Ranking Based On Selection :10
Austria
Dobrica Savic
Information and knowledge management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
858
784
0.914
* Total Citation Counts Rankings
Ranking Based On Selection :11
Austria
Katerina Nikolouli
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
640
555
0.867
* Total Citation Counts Rankings
Ranking Based On Selection :12
Austria
Godfrey Azangwe
Dosimetry and Medical Radiation Physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
517
245
0.474
* Total Citation Counts Rankings
Ranking Based On Selection :13
Austria
Kaichao Sun
Research Reactor
Micro Reactor
Regulation
Operation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
437
289
0.661
* Total Citation Counts Rankings
Ranking Based On Selection :14
Austria
Astrid Harjung
stable water isotopes
water quality
dissolved organic matter
nitrogen pollution
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
436
389
0.892
* Total Citation Counts Rankings
Ranking Based On Selection :15
Austria
Maria Heiling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
419
347
0.828
* Total Citation Counts Rankings
Ranking Based On Selection :16
Austria
Sneha Datta
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
406
347
0.855
* Total Citation Counts Rankings
Ranking Based On Selection :17
Austria
guido bracke
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
376
120
0.319
* Total Citation Counts Rankings
Ranking Based On Selection :18
Austria
Brett Moldovan
Nuclear Fuel Cycle
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
363
75
0.207
* Total Citation Counts Rankings
Ranking Based On Selection :19
Austria
Jeff Thomsen
Physics machine technologies
Superconducting Circuits
Distributed Sensor Networks
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
178
96
0.539
* Total Citation Counts Rankings
Ranking Based On Selection :20
Austria
Lorenzo Copia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
159
124
0.780
* Total Citation Counts Rankings
Ranking Based On Selection :21
Austria
Adrienne Hanly
Uranium isotopes
Uranium Deposits
Uranium Resources
Uranium Supply
Uranium Demand
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
90
50
0.556
* Total Citation Counts Rankings
Ranking Based On Selection :22
Austria
Andrew W Piatt
Social Media Analytics
Semantic Web
Data Science
Informatics
Drupal
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39
24
0.615
* Total Citation Counts Rankings
Ranking Based On Selection :23
Austria
Kennedy Kilel|KK Kilel, KK Kiprotich
Sediment Transport
Nuclear Instrumentation
Gamma Spectroscopy
Radiotracers
Data science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16
16
1.000
* Total Citation Counts Rankings
Ranking Based On Selection :24
Austria
Juja Chakarova
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14
13
0.929
* Total Citation Counts Rankings
Ranking Based On Selection :25
Austria
Jonas Van Laere
ecophysiology
stable isotopes
cassava
drought stress
potassium
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9
9
1.000
* Total Citation Counts Rankings
Rankings
154,141
Austria
923
15
Ranking Based On Selection: 1
Ian Swainson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,691
1,763
0.263
* Total Citation Counts Rankings
Rankings
166,234
Austria
986
16
Ranking Based On Selection: 2
Ales Fajgelj
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,221
2,032
0.327
Quality Systems Manager
* Total Citation Counts Rankings
Rankings
226,828
Austria
1,292
20
Ranking Based On Selection: 3
Gudni Hardarson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,517
777
0.172
* Total Citation Counts Rankings
Rankings
312,523
Austria
1,741
27
Ranking Based On Selection: 4
Gerd Dercon
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,139
1,478
0.471
* Total Citation Counts Rankings
Rankings
312,738
Austria
1,743
28
Ranking Based On Selection: 5
Manuel Welsch
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,136
2,005
0.639
* Total Citation Counts Rankings
Rankings
325,276
Austria
1,807
29
Ranking Based On Selection: 6
Mikhail Balonov
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,991
974
0.326
radiobiology
radiation protection
* Total Citation Counts Rankings
Rankings
480,901
Austria
2,539
37
Ranking Based On Selection: 7
Joe Hiess
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,777
961
0.541
* Total Citation Counts Rankings
Rankings
546,774
Austria
2,850
41
Ranking Based On Selection: 8
Badreddine Barhoumi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,462
1,047
0.716
* Total Citation Counts Rankings
Rankings
578,792
Austria
2,988
44
Ranking Based On Selection: 9
Paul Degnan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,334
317
0.238
site characterisation for radioactive waste disposal
safety case development
* Total Citation Counts Rankings
Rankings
736,444
Austria
3,689
53
Ranking Based On Selection: 10
Dobrica Savic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
858
784
0.914
Information and knowledge management
* Total Citation Counts Rankings
Rankings
837,254
Austria
4,134
58
Ranking Based On Selection: 11
Katerina Nikolouli
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
640
555
0.867
* Total Citation Counts Rankings
Rankings
905,204
Austria
4,430
62
Ranking Based On Selection: 12
Godfrey Azangwe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
517
245
0.474
Dosimetry and Medical Radiation Physics
* Total Citation Counts Rankings
Rankings
971,865
Austria
4,772
63
Ranking Based On Selection: 13
Kaichao Sun
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
437
289
0.661
Research Reactor
Micro Reactor
Regulation
Operation
* Total Citation Counts Rankings
Rankings
972,492
Austria
4,775
64
Ranking Based On Selection: 14
Astrid Harjung
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
436
389
0.892
stable water isotopes
water quality
dissolved organic matter
nitrogen pollution
* Total Citation Counts Rankings
Rankings
988,276
Austria
4,854
65
Ranking Based On Selection: 15
Maria Heiling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
419
347
0.828
* Total Citation Counts Rankings
Rankings
1,000,868
Austria
4,919
68
Ranking Based On Selection: 16
Sneha Datta
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
406
347
0.855
* Total Citation Counts Rankings
Rankings
1,032,036
Austria
5,078
69
Ranking Based On Selection: 17
guido bracke
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
376
120
0.319
* Total Citation Counts Rankings
Rankings
1,045,907
Austria
5,142
70
Ranking Based On Selection: 18
Brett Moldovan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
363
75
0.207
* Total Citation Counts Rankings
Rankings
1,339,369
Austria
6,408
79
Ranking Based On Selection: 19
Jeff Thomsen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
178
96
0.539
Physics machine technologies
Superconducting Circuits
Distributed Sensor Networks
* Total Citation Counts Rankings
Rankings
1,386,641
Austria
6,593
82
Ranking Based On Selection: 20
Lorenzo Copia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
159
124
0.780
* Total Citation Counts Rankings
Rankings
1,619,703
Austria
7,417
84
Ranking Based On Selection: 21
Adrienne Hanly
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
90
50
0.556
Uranium isotopes
Uranium Deposits
Uranium Resources
Uranium Supply
Uranium Demand
* Total Citation Counts Rankings
Rankings
1,899,466
Austria
8,240
88
Ranking Based On Selection: 22
Andrew W Piatt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39
24
0.615
Social Media Analytics
Semantic Web
Data Science
Informatics
Drupal
* Total Citation Counts Rankings
Rankings
2,110,682
Austria
8,734
92
Ranking Based On Selection: 23
Kennedy Kilel|KK Kilel, KK Kiprotich
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16
16
1.000
Sediment Transport
Nuclear Instrumentation
Gamma Spectroscopy
Radiotracers
Data science
* Total Citation Counts Rankings
Rankings
2,139,011
Austria
8,777
94
Ranking Based On Selection: 24
Juja Chakarova
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14
13
0.929
* Total Citation Counts Rankings
Rankings
2,202,716
Austria
8,906
95
Ranking Based On Selection: 25
Jonas Van Laere
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9
9
1.000
ecophysiology
stable isotopes
cassava
drought stress
potassium