C. T. Johnson

1.7k total citations · 1 hit paper
11 papers, 1.4k citations indexed

About

C. T. Johnson is a scholar working on Atomic and Molecular Physics, and Optics, Radiation and Spectroscopy. According to data from OpenAlex, C. T. Johnson has authored 11 papers receiving a total of 1.4k indexed citations (citations by other indexed papers that have themselves been cited), including 10 papers in Atomic and Molecular Physics, and Optics, 3 papers in Radiation and 3 papers in Spectroscopy. Recurrent topics in C. T. Johnson's work include Atomic and Molecular Physics (9 papers), Advanced Chemical Physics Studies (7 papers) and X-ray Spectroscopy and Fluorescence Analysis (3 papers). C. T. Johnson is often cited by papers focused on Atomic and Molecular Physics (9 papers), Advanced Chemical Physics Studies (7 papers) and X-ray Spectroscopy and Fluorescence Analysis (3 papers). C. T. Johnson collaborates with scholars based in United Kingdom, Australia and United States. C. T. Johnson's co-authors include K G Dyall, I. P. Grant, F. A. Parpia, A E Kingston, P G Burke, P. L. Dufton, D. J. Lennon, F. P. Keenan and F. P. Keenan and has published in prestigious journals such as Journal of Applied Physics, Monthly Notices of the Royal Astronomical Society and Computer Physics Communications.

In The Last Decade

C. T. Johnson

11 papers receiving 1.3k citations

Hit Papers

align trajectories

What are hit papers?

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.

GRASP: A general-purpose relativistic atomic structure program

1989 1.2k citations K G Dyall, I. P. Grant et al. Computer Physics Communications profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
C. T. Johnson United Kingdom	7	1.2k	353	322	264	185	11	1.4k
Keh‐Ning Huang United States	22	1.6k 1.3×	311 0.9×	278 0.9×	271 1.0×	321 1.7×	69	1.8k
G. Csanak United States	26	1.6k 1.3×	480 1.4×	487 1.5×	211 0.8×	203 1.1×	98	1.7k
R. Bruch United States	20	1.4k 1.2×	412 1.2×	361 1.1×	204 0.8×	406 2.2×	110	1.5k
A. S. Schlachter United States	23	1.1k 0.9×	371 1.1×	160 0.5×	160 0.6×	437 2.4×	60	1.3k
Isao Shimamura Japan	23	1.4k 1.2×	157 0.4×	337 1.0×	173 0.7×	248 1.3×	74	1.5k
Richard Marrus United States	28	1.8k 1.4×	540 1.5×	258 0.8×	525 2.0×	503 2.7×	67	2.1k
M. Cornille France	16	813 0.7×	242 0.7×	322 1.0×	170 0.6×	243 1.3×	81	941
J. Migdałek Poland	21	1.3k 1.1×	115 0.3×	296 0.9×	219 0.8×	279 1.5×	73	1.4k
P. Faucher France	20	1.1k 0.9×	276 0.8×	361 1.1×	236 0.9×	279 1.5×	52	1.2k
Constantine E. Theodosiou United States	22	1.3k 1.1×	160 0.5×	227 0.7×	140 0.5×	332 1.8×	67	1.5k

Countries citing papers authored by C. T. Johnson

Since Specialization

Citations

This map shows the geographic impact of C. T. Johnson'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. T. Johnson with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites C. T. Johnson more than expected).

Fields of papers citing papers by C. T. Johnson

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of C. T. Johnson

This figure shows the co-authorship network connecting the top 25 collaborators of C. T. Johnson. A scholar is included among the top collaborators of C. T. Johnson 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 C. T. Johnson. C. T. Johnson is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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11 of 11 papers shown

1.

Johnson, C. T. & A E Kingston. (1990). Electron impact excitation of the 3s²3p⁴levels of Ar III. Journal of Physics B Atomic Molecular and Optical Physics. 23(19). 3393–3405. 16 indexed citations

2.

Dyall, K G, et al.. (1989). GRASP: A general-purpose relativistic atomic structure program. Computer Physics Communications. 55(3). 425–456. 1247 indexed citations breakdown →

3.

Keenan, F. P., C. T. Johnson, & A E Kingston. (1988). AR III in planetary nebulae.. 202. 253–255. 1 indexed citations

4.

Johnson, C. T., P G Burke, & A E Kingston. (1987). Electron scattering from the fine structure levels within the 1s²2s²2p²³P^eground state of C I. Journal of Physics B Atomic and Molecular Physics. 20(11). 2553–2563. 29 indexed citations

5.

Johnson, C. T. & A E Kingston. (1987). Electron excitation of the 1s²2s²2p⁵²P^o_3/2-²P^o_1/2transition and analysis of the 1s²2s2p⁶nl resonances for Ne II and Mg IV. Journal of Physics B Atomic and Molecular Physics. 20(21). 5757–5769. 9 indexed citations

6.

Johnson, C. T. & A E Kingston. (1987). Radiative transitions in Ne II and Mg IV. Journal of Physics B Atomic and Molecular Physics. 20(21). 5663–5673. 11 indexed citations

7.

Keenan, F. P., D. J. Lennon, C. T. Johnson, & A E Kingston. (1986). Fine-structure population ratios for the 2P ground state of C II. Monthly Notices of the Royal Astronomical Society. 220(3). 571–576. 25 indexed citations

8.

Johnson, C. T., A E Kingston, & P. L. Dufton. (1986). Atomic data for the S IV 10.5- m fine-structure transition. Monthly Notices of the Royal Astronomical Society. 220(1). 155–163. 20 indexed citations

9.

Keenan, F. P., C. T. Johnson, A E Kingston, & P. L. Dufton. (1985). Population ratios for the fine structure ground state of Si II applicable to the interstellar medium. Monthly Notices of the Royal Astronomical Society. 214(1). 37P–40P. 6 indexed citations

10.

Johnson, C. T., A E Kingston, & P. L. Dufton. (1984). Ne V abundances in planetary nebulae from infrared lines. Monthly Notices of the Royal Astronomical Society. 207(1). 7P–12P. 3 indexed citations

11.

Johnson, C. T., et al.. (1981). A study of unipolar arcs in a low-pressure mercury discharge. Journal of Applied Physics. 52(11). 6543–6549. 2 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.

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