Sudhir Kumar

726 total citations
38 papers, 617 citations indexed

About

Sudhir Kumar is a scholar working on Radiation, Pulmonary and Respiratory Medicine and Biomedical Engineering. According to data from OpenAlex, Sudhir Kumar has authored 38 papers receiving a total of 617 indexed citations (citations by other indexed papers that have themselves been cited), including 30 papers in Radiation, 17 papers in Pulmonary and Respiratory Medicine and 15 papers in Biomedical Engineering. Recurrent topics in Sudhir Kumar's work include Advanced Radiotherapy Techniques (19 papers), Advanced X-ray and CT Imaging (14 papers) and Radiation Therapy and Dosimetry (14 papers). Sudhir Kumar is often cited by papers focused on Advanced Radiotherapy Techniques (19 papers), Advanced X-ray and CT Imaging (14 papers) and Radiation Therapy and Dosimetry (14 papers). Sudhir Kumar collaborates with scholars based in India, United Kingdom and United States. Sudhir Kumar's co-authors include Alan E. Nahum, John D. Fenwick, Alison J. D. Scott, P.C. Mangal, P.N. Trehan, M. L. Garg, Surinder Singh, D. Mehta, Devinder Mehta and Nirmal Singh and has published in prestigious journals such as Physics in Medicine and Biology, Medical Physics and Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms.

In The Last Decade

Sudhir Kumar

33 papers receiving 585 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Sudhir Kumar India 14 538 238 161 160 137 38 617
Alessandra Tomal Brazil 11 117 0.2× 194 0.8× 215 1.3× 83 0.5× 247 1.8× 43 402
M. Rodriguez Germany 13 394 0.7× 275 1.2× 102 0.6× 10 0.1× 229 1.7× 34 467
Gisela Saint Martin Argentina 12 215 0.4× 45 0.2× 40 0.2× 89 0.6× 189 1.4× 41 413
A R DuSautoy United Kingdom 12 333 0.6× 302 1.3× 17 0.1× 29 0.2× 98 0.7× 22 357
C.W.Y. Yip Hong Kong 13 186 0.3× 39 0.2× 17 0.1× 129 0.8× 42 0.3× 23 420
R. Barquero Spain 14 490 0.9× 345 1.4× 53 0.3× 74 0.5× 182 1.3× 29 599
L. Pirola Italy 11 214 0.4× 115 0.5× 19 0.1× 37 0.2× 138 1.0× 37 337
Adam Konefał Poland 12 319 0.6× 298 1.3× 15 0.1× 42 0.3× 107 0.8× 40 379
P. Lamperti United States 10 214 0.4× 126 0.5× 57 0.4× 77 0.5× 114 0.8× 20 295
M Boutillon France 9 280 0.5× 152 0.6× 32 0.2× 104 0.7× 151 1.1× 19 333

Countries citing papers authored by Sudhir Kumar

Since Specialization
Citations

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

Fields of papers citing papers by Sudhir Kumar

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Sudhir Kumar

This figure shows the co-authorship network connecting the top 25 collaborators of Sudhir Kumar. A scholar is included among the top collaborators of Sudhir Kumar 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 Sudhir Kumar. Sudhir Kumar 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.
2.
Fenwick, John D., Sudhir Kumar, & Juan Pardo‐Montero. (2024). Collection efficiencies of cylindrical and plane parallel ionization chambers: analytical and numerical results and implications for experimentally determined correction factors. Physics in Medicine and Biology. 69(15). 155023–155023. 2 indexed citations
3.
Kumar, Sudhir, et al.. (2024). Development of absolute dosimeter for standardization of low-energy synchrotron radiation and establishing of diagnostic X-ray beam qualities. Journal of Cancer Research and Therapeutics. 20(6). 1811–1822.
4.
Fenwick, John D. & Sudhir Kumar. (2022). Collection efficiencies of ionization chambers in pulsed radiation beams: an exact solution of an ion recombination model including free electron effects. Physics in Medicine and Biology. 68(1). 15016–15016. 6 indexed citations
5.
Georgiou, G., et al.. (2021). The PTW microSilicon diode: Performance in small 6 and 15 MV photon fields and utility of density compensation. Medical Physics. 48(12). 8062–8074. 5 indexed citations
6.
Georgiou, G., Sudhir Kumar, Tracy Underwood, et al.. (2020). Density compensated diodes for small field dosimetry: comprehensive testing and implications for design. Physics in Medicine and Biology. 65(15). 155011–155011. 1 indexed citations
7.
Kumar, Sudhir, Alan E. Nahum, & Indrin J. Chetty. (2020). Monte-Carlo-computed dose, kerma and fluence distributions in heterogeneous slab geometries irradiated by small megavoltage photon fields*. Physics in Medicine and Biology. 65(17). 175012–175012. 1 indexed citations
8.
Fenwick, John D., G. Georgiou, C. Rowbottom, et al.. (2018). Origins of the changing detector response in small megavoltage photon radiation fields. Physics in Medicine and Biology. 63(12). 125003–125003. 15 indexed citations
9.
Kumar, Sudhir, et al.. (2015). Determination of surface dose rate of indigenous 32 P patch brachytherapy source by experimental and Monte Carlo methods. Applied Radiation and Isotopes. 103. 120–127. 2 indexed citations
10.
Kumar, Sudhir, John D. Fenwick, Tracy Underwood, et al.. (2015). Breakdown of Bragg–Gray behaviour for low-density detectors under electronic disequilibrium conditions in small megavoltage photon fields. Physics in Medicine and Biology. 60(20). 8187–8212. 25 indexed citations
11.
Kumar, Sudhir, et al.. (2014). Estimation of distance error by fuzzy set theory required for strength determination of HDR 192 Ir brachytherapy sources. Journal of Medical Physics. 39(2). 85–85. 3 indexed citations
12.
Kumar, Sudhir, Deepak D. Deshpande, & Alan E. Nahum. (2014). Monte-Carlo-derived insights into dose–kerma–collision kerma inter-relationships for 50 keV–25 MeV photon beams in water, aluminum and copper. Physics in Medicine and Biology. 60(2). 501–519. 9 indexed citations
13.
Scott, Alison J. D., Sudhir Kumar, Alan E. Nahum, & John D. Fenwick. (2012). Characterizing the influence of detector density on dosimeter response in non-equilibrium small photon fields. Physics in Medicine and Biology. 57(14). 4461–4476. 141 indexed citations
14.
Kumar, Sudhir, et al.. (2010). Calibration coefficient of reference brachytherapy ionization chamber using analytical and Monte Carlo methods. Applied Radiation and Isotopes. 68(6). 1108–1115.
15.
Kumar, Sudhir, et al.. (2009). Evaluation of Scatter Contribution and Distance Error by Iterative Methods for Strength Determination of HDR 192Ir Brachytherapy Source. Medical dosimetry. 35(3). 230–237. 2 indexed citations
16.
Sharma, S. D., et al.. (2007). Dosimetric comparison of linear accelerator-based stereotactic radiosurgery systems. Journal of Medical Physics. 32(1). 18–18. 8 indexed citations
17.
Kumar, Sudhir, et al.. (2003). Collimator Exchange Effect Of Multileaf Collimator System. Journal of Medical Physics. 28(1). 12–12.
18.
Kumar, Sudhir, Suren Singh, D. Mehta, et al.. (1991). Effect of automobile exhaust on the distribution of trace elements and its modulation following Fe, Cu, and Zn supplementation. Biological Trace Element Research. 31(1). 51–62. 17 indexed citations
19.
Kumar, Sudhir, Surinder Singh, D. Mehta, et al.. (1989). Matrix corrections for quantitative determination of trace elements in biological samples using energy‐dispersive X‐ray fluorescence spectrometry. X-Ray Spectrometry. 18(5). 207–210. 32 indexed citations
20.
Kumar, Sudhir & D.S. Srivastava. (1984). An Indian glass dosimeter for thermal neutron fluence measurements. Indian Journal of Pure & Applied Physics. 22(1). 15–18. 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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