N.D. Twiddy

1.7k total citations
59 papers, 1.5k citations indexed

About

N.D. Twiddy is a scholar working on Spectroscopy, Atomic and Molecular Physics, and Optics and Atmospheric Science. According to data from OpenAlex, N.D. Twiddy has authored 59 papers receiving a total of 1.5k indexed citations (citations by other indexed papers that have themselves been cited), including 40 papers in Spectroscopy, 34 papers in Atomic and Molecular Physics, and Optics and 22 papers in Atmospheric Science. Recurrent topics in N.D. Twiddy's work include Spectroscopy and Laser Applications (33 papers), Atmospheric Ozone and Climate (17 papers) and Atmospheric chemistry and aerosols (15 papers). N.D. Twiddy is often cited by papers focused on Spectroscopy and Laser Applications (33 papers), Atmospheric Ozone and Climate (17 papers) and Atmospheric chemistry and aerosols (15 papers). N.D. Twiddy collaborates with scholars based in United Kingdom, France and Czechia. N.D. Twiddy's co-authors include R.C. Bolden, Asit B. Rakshit, M. Tichý, David Smith, Nigel G. Adams, Robert L. Boyd, R. Hemsworth, K. Birkinshaw, D.G. Lister and J.D.C. Jones and has published in prestigious journals such as Nature, The Journal of Chemical Physics and Chemical Physics Letters.

In The Last Decade

N.D. Twiddy

58 papers receiving 1.3k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
N.D. Twiddy United Kingdom 20 842 730 426 404 149 59 1.5k
W. Benesch United States 22 615 0.7× 683 0.9× 442 1.0× 358 0.9× 271 1.8× 52 1.3k
J. T. Moseley United States 29 1.6k 1.9× 1.3k 1.8× 504 1.2× 427 1.1× 172 1.2× 72 2.3k
F. Howorka Austria 18 558 0.7× 597 0.8× 264 0.6× 226 0.6× 85 0.6× 52 1.0k
R. L. Sharpless United States 20 503 0.6× 456 0.6× 347 0.8× 409 1.0× 80 0.5× 42 1.2k
J. C. Larrabee United States 19 765 0.9× 540 0.7× 340 0.8× 199 0.5× 173 1.2× 35 1.2k
Michael F. Golde United States 25 832 1.0× 684 0.9× 366 0.9× 492 1.2× 111 0.7× 55 1.6k
Walter L. Borst United States 19 679 0.8× 396 0.5× 237 0.6× 311 0.8× 237 1.6× 49 1.2k
A Lofthus Norway 11 1.1k 1.2× 808 1.1× 309 0.7× 569 1.4× 85 0.6× 20 1.8k
J. F. Bott United States 21 687 0.8× 624 0.9× 411 1.0× 362 0.9× 33 0.2× 50 1.2k
E. Alge United Kingdom 18 860 1.0× 712 1.0× 360 0.8× 156 0.4× 188 1.3× 25 1.3k

Countries citing papers authored by N.D. Twiddy

Since Specialization
Citations

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

Fields of papers citing papers by N.D. Twiddy

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by N.D. Twiddy. 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 N.D. Twiddy. The network helps show where N.D. Twiddy may publish in the future.

Co-authorship network of co-authors of N.D. Twiddy

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

All Works

20 of 20 papers shown
1.
Glosı́k, J., N.D. Twiddy, Gholamreza Javahery, & E. E. Ferguson. (1991). Measurement of the equilibrium constant of the reaction HeH+ + Ne ⇌ NeH+ + He in a selected ion flow tube. International Journal of Mass Spectrometry and Ion Processes. 109. 75–81. 4 indexed citations
2.
Tichý, M., Gholamreza Javahery, N.D. Twiddy, & E. E. Ferguson. (1989). The application of a selected-ion flow drift tube to the determination of proton affinity differences. International Journal of Mass Spectrometry and Ion Processes. 93(2). 165–175. 7 indexed citations
3.
Hamdan, Mahmoud, et al.. (1986). A study of the reactions of F+ with neutral molecules at room temperature. International Journal of Mass Spectrometry and Ion Processes. 69(2). 191–195. 12 indexed citations
4.
Hamdan, Mahmoud, K. Birkinshaw, & N.D. Twiddy. (1984). Energy dependence of the reactions of Ar+·(2P12) and Ar+·(2P32) with N2. International Journal of Mass Spectrometry and Ion Processes. 57(2). 225–231. 22 indexed citations
5.
Jones, T. T. C., J.D.C. Jones, K. Birkinshaw, & N.D. Twiddy. (1982). Gaseous ion mobility measurements: Ne+ and Kr+ in helium at 294 K. Chemical Physics Letters. 86(5-6). 503–505. 7 indexed citations
6.
Jones, T. T. C., J. Villinger, D.G. Lister, et al.. (1981). The energy dependence of some neon-ion-neutral reaction rate coefficients investigated in a flow-drift tube experiment. Journal of Physics B Atomic and Molecular Physics. 14(15). 2719–2729. 15 indexed citations
7.
Jones, J.D.C., K. Birkinshaw, & N.D. Twiddy. (1981). Rate coefficients and product ion distributions for the reactions of OH+ and H2O+ with N2 , O2, NO. N2O, Xe, CO, CO2, H2S and H2 at 300 K. Chemical Physics Letters. 77(3). 484–488. 37 indexed citations
8.
Dickinson, P.H.G., W.C. Bain, L. Thomas, et al.. (1980). The determination of the atomic oxygen concentration and associated parameters in the lower ionosphere. Proceedings of the Royal Society of London A Mathematical and Physical Sciences. 369(1738). 379–408. 63 indexed citations
9.
Jones, J.D.C., D.G. Lister, & N.D. Twiddy. (1980). Equilibrium constant for the reaction Xe+ + 2Ar ⇌ XeAr+ + Ar in the temperature range 150–300 k and the dissociation energy of XeAr+. Chemical Physics Letters. 70(3). 575–578. 15 indexed citations
10.
Lister, D.G., Asit B. Rakshit, M. Tichý, K. Birkinshaw, & N.D. Twiddy. (1979). Production of metastable O+* in the reaction between He+and O2at 300K. Journal of Physics B Atomic and Molecular Physics. 12(17). 2947–2950. 6 indexed citations
11.
Dickinson, P.H.G., N.D. Twiddy, & Robert Young. (1976). Atomic oxygen concentrations in the lower ionosphere.. 301–305. 5 indexed citations
12.
Bolden, R.C., et al.. (1973). Determination of the rate constant for the reaction N2H+ + H2O → H3O+ + N2 in a flowing afterglow. Chemical Physics Letters. 23(1). 73–74. 6 indexed citations
13.
Bolden, R.C., R. Hemsworth, Michael J. Shaw, & N.D. Twiddy. (1970). The measurement of Penning ionization cross sections for helium 23S metastables using a steady-state flowing afterglow method. Journal of Physics B Atomic and Molecular Physics. 3(1). 61–71. 67 indexed citations
14.
Bolden, R.C., R. Hemsworth, Michael J. Shaw, & N.D. Twiddy. (1969). The measurement of Penning ionization cross-sections for helium 2 3 S metastables. 27. 1 indexed citations
15.
Twiddy, N.D., et al.. (1969). Time-resolved measurements of electron energy distributions. Journal of Physics D Applied Physics. 2(12). 1747–1754. 28 indexed citations
16.
Twiddy, N.D., et al.. (1968). Electron energy distributions in the low-pressure mercury-vapour discharge: the Langmuir paradox. Proceedings of the Royal Society of London A Mathematical and Physical Sciences. 304(1476). 87–98. 13 indexed citations
17.
Twiddy, N.D.. (1963). Electron energy distributions in plasmas V. A search for evidence of a high anomalous rate of energy exchange between the electrons of a low-pressure discharge. Proceedings of the Royal Society of London A Mathematical and Physical Sciences. 275(1362). 338–356. 7 indexed citations
18.
Twiddy, N.D.. (1961). Electron energy distributions in plasmas III. The cathode regions in helium, neon and argon. Proceedings of the Royal Society of London A Mathematical and Physical Sciences. 262(1310). 379–394. 13 indexed citations
19.
Boyd, Robert L. & N.D. Twiddy. (1960). Electron energy distributions in plasmas - II. Hydrogen. Proceedings of the Royal Society of London A Mathematical and Physical Sciences. 259(1297). 145–158. 22 indexed citations
20.
Boyd, Robert L. & N.D. Twiddy. (1959). Electron energy distributions in plasmas. I. Proceedings of the Royal Society of London A Mathematical and Physical Sciences. 250(1260). 53–69. 96 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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