C. Challis

7.3k citations

96 papers · 1.9k · h-index 25

Impact in

Nuclear and High Energy Physics top 1%
- Magnetic confinement fusion research
- Laser-Plasma Interactions and Diagnostics
Astronomy and Astrophysics top 2%
- Ionosphere and magnetosphere dynamics
- Solar and Space Plasma Dynamics

Papers in

Nuclear and High Energy Physics 93
- Magnetic confinement fusion research 92
- Laser-Plasma Interactions and Diagnostics 25
Materials Chemistry 65
- Fusion materials and technologies 65

Co-authors: E. Joffrin (28 shared papers)N. Hawkes (24 shared papers)T. C. Hender (8 shared papers)S. E. Sharapov (15 shared papers)D. F. Howell (8 shared papers)J. Mailloux (17 shared papers)C. Giroud (23 shared papers)D. Mazon (7 shared papers)
Journals: Nuclear Fusion (31 papers)Plasma Physics and Controlled Fusion (28 papers)Fusion Engineering and Design (7 papers)Review of Scientific Instruments (4 papers)Physics of Plasmas (4 papers)
Partner nations: United Kingdom France Germany

In The Last Decade

C. Challis

89 papers receiving 1.8k citations

Peers

Countries citing papers authored by C. Challis

Since Specialization

Citations

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

Fields of papers citing papers by C. Challis

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authors

The 25 scholars most cited alongside C. Challis, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with C. Challis Line = papers co-authored together C. Challis links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

Showing the 20 most-cited of 96 papers — load more, or switch the sort, to bring in the rest.

#	Work
1	Internal transport barrier triggering by rational magnetic flux surfaces in tokamaks Nuclear Fusion ·E. Joffrin, C. Challis, G. D. Conway, X. Garbet, A. Gude, S. Günter, N. Hawkes, T. C. Hender, D. F. Howell, G. Huysmans, E. Lazzaro, P. Maget, M Marachek, A. G. Peeters, S. D. Pinches, S. E. Sharapov, Jet-Efda Contributors	2003	123
2	Alfvén wave cascades in a tokamak Physics of Plasmas ·S. E. Sharapov, B. Alper, H. L. Berk, D. Borba, B. N. Breǐzman, C. Challis, A. Fasoli, N. Hawkes, T. C. Hender, J. Mailloux, S. D. Pinches, D. Testa, (unknown)	2002	120
3	Observation of Zero Current Density in the Core of JET Discharges with Lower Hybrid Heating and Current Drive Physical Review Letters ·N. Hawkes, B. Stratton, T. Tala, C. Challis, G. D. Conway, R. J. DeAngelis, C. Giroud, J. Hobirk, E. Joffrin, P. Lomas, P. Lotte, J. Mailloux, D. Mazon, E. Rachlew, S. Reyes-Cortes, E.R. Solano, K.-D. Zastrow	2001	114
4	Triggering of internal transport barrier in JET Plasma Physics and Controlled Fusion ·E. Joffrin, G. Gorini, C. Challis, N. Hawkes, T. C. Hender, D. F. Howell, P. Maget, P. Mantica, D. Mazon, S. E. Sharapov, G Tresset, and contributors to the EFDA-JET Workprogramme	2002	83
5	Effect ofq-profile modification by LHCD on internal transport barriers in JET^* Plasma Physics and Controlled Fusion ·C. Challis, Y. Baranov, G. D. Conway, C. Gormezano, C. Gowers, N. Hawkes, T. C. Hender, E. Joffrin, J. Mailloux, D. Mazon, S. Podda, R. Prentice, F. Rimini, S. E. Sharapov, A. C. C. Sips, B. Stratton, D. Testa, K.-D. Zastrow	2001	77
6	Pedestal confinement and stability in JET-ILW ELMy H-modes Nuclear Fusion ·C. F. Maggi, S. Saarelma, F. J. Casson, C. Challis, E. de la Luna, L. Frassinetti, C. Giroud, E. Joffrin, J. Simpson, M. Beurskens, I.T. Chapman, J. Hobirk, Matthew Leyland, P. Lomas, C. Lowry, I. Nunes, F. Rimini, A. C. C. Sips, H. Urano	2015	69
7	Key impact of finite-beta and fast ions in core and edge tokamak regions for the transition to advanced scenarios Nuclear Fusion ·J. Garcia, C. Challis, J. Citrin, H. Doerk, G. Giruzzi, T. Görler, F. Jenko, P. Maget, (unknown)	2015	68
8	Influence of the q-profile shape on plasma performance in JET* Plasma Physics and Controlled Fusion ·C. Challis, X. Litaudon, G Tresset, Y. Baranov, A. Bécoulet, C. Giroud, N. Hawkes, D. F. Howell, E. Joffrin, P. Lomas, J. Mailloux, M. Mantsinen, B. Stratton, D.J. Ward, K.-D. Zastrow, contributors to the EFDA-JET Workprogramme	2002	67
9	MHD internal transport barrier triggering in low positive magnetic shear scenarios in JET Nuclear Fusion ·E. Joffrin, C. Challis, T. C. Hender, D. F. Howell, G. Huysmans	2002	59
10	The scaling of transport with normalized Larmor radius in JET Nuclear Fusion ·J. Christiansen, P M Stubberfield, J.G. Cordey, C. Gormezano, C. Gowers, J O'Rourke, D. Stork, A. Taroni, C. Challis	1993	49
11	Integrated modelling of H-mode pedestal and confinement in JET-ILW Plasma Physics and Controlled Fusion ·S. Saarelma, C. Challis, L. Garzotti, L. Frassinetti, C. F. Maggi, F. Romanelli, Charles S. Stokes, (unknown)	2017	40
12	Current ramp experiments on the scaling of energy confinement Nuclear Fusion ·C. Challis, J. Christiansen, J.G. Cordey, C. Gormezano, C. Gowers, G. Krämer, J O'Rourke, P M Stubberfield, A. Taroni, F Tibone, B. Tubbing	1992	36
13	Bootstrap current theory and experimental evidence Plasma Physics and Controlled Fusion ·J.G. Cordey, C. Challis, P M Stubberfield	1988	35
14	The use of internal transport barriers in tokamak plasmas Plasma Physics and Controlled Fusion ·C. Challis	2004	34
15	q = 1 advanced tokamak experiments in JET and comparison with ASDEX Upgrade* Plasma Physics and Controlled Fusion ·E. Joffrin, R. C. Wolf, B. Alper, Y. Baranov, C. Challis, M. de Baar, C. Giroud, C. Gowers, N. Hawkes, T. C. Hender, M Marachek, D. Mazon, V. Parail, A. G. Peeters, K.-D. Zastrow, contributors to the EFDA-JET Workprogramme	2002	33
16	Internal transport barrier dynamics with plasma rotation in JET Nuclear Fusion ·P.C. de Vries, E. Joffrin, M. Brix, C. Challis, K. Crombé, B. Esposito, N. Hawkes, C. Giroud, J. Hobirk, J. Lönnroth, P. Mantica, D. Strintzi, T. Tala, I. Voitsekhovitch	2009	32
17	Experimental studies of stability and beta limit in JET Plasma Physics and Controlled Fusion ·M. Gryaznevich, T. C. Hender, D. F. Howell, C. Challis, H. R. Koslowski, S. Gerasimov, E. Joffrin, Y Q Liu, S. Saarelma, (unknown)	2008	32
18	Characterization of ion heat conduction in JET and ASDEX Upgrade plasmas with and without internal transport barriers Plasma Physics and Controlled Fusion ·R. C. Wolf, Y. Baranov, X. Garbet, N. Hawkes, A. G. Peeters, C. Challis, M. de Baar, C. Giroud, E. Joffrin, M. Mantsinen, D. Mazon, H. Meister, W. Suttrop, K-D Zastrow, the ASDEX Upgrade team and contribu Workprogramme	2003	31
19	Kink instabilities in high-beta JET advanced scenarios Nuclear Fusion ·P. Buratti, M. Baruzzo, R. J. Buttery, C. Challis, I.T. Chapman, F. Crisanti, L. Figini, M. Gryaznevich, T. C. Hender, D. F. Howell, Hyunsun Han, F. Imbeaux, E. Joffrin, J. Hobirk, Oh Jin Kwon, X. Litaudon, J. Mailloux	2012	29
20	The effects of impurities and core pressure on pedestal stability in Joint European Torus (JET)a) Physics of Plasmas ·S. Saarelma, A. Järvinen, M. Beurskens, C. Challis, L. Frassinetti, C. Giroud, M. Groth, Matthew Leyland, C. F. Maggi, J. Simpson, (unknown)	2015	28

About C. Challis

C. Challis is a scholar working on Nuclear and High Energy Physics, Materials Chemistry, Biomedical Engineering, Astronomy and Astrophysics and Aerospace Engineering, having authored 96 papers that have together received 1.9k indexed citations. Recurring topics across this work include Magnetic confinement fusion research (92 papers), Fusion materials and technologies (65 papers), Superconducting Materials and Applications (31 papers), Ionosphere and magnetosphere dynamics (26 papers), Laser-Plasma Interactions and Diagnostics (25 papers), Particle accelerators and beam dynamics (17 papers), Plasma Diagnostics and Applications (6 papers) and Nuclear reactor physics and engineering (6 papers). The work is most often cited by research in Nuclear and High Energy Physics (1.9k citations), Astronomy and Astrophysics (912 citations), Materials Chemistry (863 citations), Aerospace Engineering (344 citations) and Biomedical Engineering (541 citations). C. Challis has collaborated with scholars based in United Kingdom, France and Germany. Frequent co-authors include E. Joffrin, N. Hawkes, T. C. Hender, S. E. Sharapov, D. F. Howell, J. Mailloux, C. Giroud, D. Mazon, P. Maget and J. Hobirk. Their work appears in journals such as Nuclear Fusion, Plasma Physics and Controlled Fusion, Fusion Engineering and Design, Review of Scientific Instruments and Physics of Plasmas.

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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