K. O’Brien

2.4k total citations
85 papers, 1.7k citations indexed

About

K. O’Brien is a scholar working on Astronomy and Astrophysics, Radiation and Pulmonary and Respiratory Medicine. According to data from OpenAlex, K. O’Brien has authored 85 papers receiving a total of 1.7k indexed citations (citations by other indexed papers that have themselves been cited), including 29 papers in Astronomy and Astrophysics, 26 papers in Radiation and 23 papers in Pulmonary and Respiratory Medicine. Recurrent topics in K. O’Brien's work include Radiation Therapy and Dosimetry (23 papers), Solar and Space Plasma Dynamics (19 papers) and Nuclear Physics and Applications (16 papers). K. O’Brien is often cited by papers focused on Radiation Therapy and Dosimetry (23 papers), Solar and Space Plasma Dynamics (19 papers) and Nuclear Physics and Applications (16 papers). K. O’Brien collaborates with scholars based in United States, India and United Kingdom. K. O’Brien's co-authors include W. Friedberg, D. F. Smart, H. H. Sauer, Richard B. Moore, Debra Colodner, Thomas W. Trull, Mark D. Kurz, Sou‐Tung Chiu‐Tsao, Lowell L. Anderson and J. Kazil and has published in prestigious journals such as Nature, Journal of Geophysical Research Atmospheres and The Astrophysical Journal.

In The Last Decade

K. O’Brien

78 papers receiving 1.5k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
K. O’Brien United States 23 572 499 422 331 261 85 1.7k
L. Desorgher Switzerland 19 1.0k 1.8× 315 0.6× 437 1.0× 304 0.9× 164 0.6× 84 1.6k
U. Herpers Germany 23 876 1.5× 393 0.8× 140 0.3× 699 2.1× 67 0.3× 120 1.9k
E. O. Flückiger Switzerland 26 1.7k 3.0× 398 0.8× 335 0.8× 153 0.5× 174 0.7× 98 2.1k
K. Knie Germany 20 700 1.2× 1.6k 3.1× 63 0.1× 474 1.4× 422 1.6× 73 2.9k
D. F. Smart United States 35 3.7k 6.5× 634 1.3× 850 2.0× 210 0.6× 148 0.6× 245 4.7k
A. Turkevich United States 25 1.1k 2.0× 188 0.4× 84 0.2× 902 2.7× 145 0.6× 84 2.8k
E. P. Ney United States 26 1.7k 3.0× 386 0.8× 91 0.2× 67 0.2× 233 0.9× 111 2.2k
E. Nolte Germany 27 121 0.2× 913 1.8× 59 0.1× 682 2.1× 455 1.7× 112 2.8k
R. E. Lingenfelter United States 37 3.3k 5.8× 314 0.6× 253 0.6× 463 1.4× 104 0.4× 200 4.2k
J. Masarik Slovakia 33 1.8k 3.1× 1.9k 3.7× 97 0.2× 379 1.1× 450 1.7× 106 3.7k

Countries citing papers authored by K. O’Brien

Since Specialization
Citations

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

Fields of papers citing papers by K. O’Brien

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by K. O’Brien. 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 K. O’Brien. The network helps show where K. O’Brien may publish in the future.

Co-authorship network of co-authors of K. O’Brien

This figure shows the co-authorship network connecting the top 25 collaborators of K. O’Brien. A scholar is included among the top collaborators of K. O’Brien 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 K. O’Brien. K. O’Brien 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.
Vincentelli, F., P. Casella, D. M. Russell, et al.. (2021). Fast infrared variability from the black hole candidate MAXI J1535−571 and tight constraints on the modelling. Monthly Notices of the Royal Astronomical Society. 503(1). 614–624. 13 indexed citations
2.
O’Brien, K., et al.. (2009). IASON-FREE: theory and experimental comparisons. Radiation Protection Dosimetry. 136(4). 267–273. 5 indexed citations
3.
Kazil, J., Edward R. Lovejoy, M. C. Barth, & K. O’Brien. (2006). Aerosol nucleation over oceans and the role of galactic cosmic rays. Atmospheric chemistry and physics. 6(12). 4905–4924. 58 indexed citations
4.
O’Brien, K., et al.. (2005). Application of the heliocentric potential to aircraft dosimetry. Radiation Protection Dosimetry. 116(1-4). 336–342. 12 indexed citations
5.
O’Brien, K.. (2004). The relative transit time of high-rigidity and low-rigidity cosmic rays through the solar system. Radiation Protection Dosimetry. 109(4). 357–363. 8 indexed citations
6.
O’Brien, K., D. F. Smart, M. A. Shea, et al.. (2003). World-wide radiation dosage calculations for air crew members. Advances in Space Research. 31(4). 835–840. 27 indexed citations
7.
Lewis, B.J., et al.. (2001). Aircrew Exposure from Cosmic Radiation on Commercial Airline Routes. Radiation Protection Dosimetry. 93(4). 293–314. 50 indexed citations
8.
Nicholas, Joyce S., et al.. (2000). GALACTIC COSMIC RADIATION EXPOSURE OF PREGNANT AIRCREW MEMBERS II. Defense Technical Information Center (DTIC). 2 indexed citations
9.
O’Brien, K., W. Friedberg, D. F. Smart, & H. H. Sauer. (1998). The atmospheric cosmic- and solar energetic particle radiation environment at aircraft altitudes. Advances in Space Research. 21(12). 1739–1748. 17 indexed citations
10.
O’Brien, K., W. Friedberg, H. H. Sauer, & D. F. Smart. (1996). Atmospheric cosmic rays and solar energetic particles at aircraft altitudes. Environment International. 22. 9–44. 96 indexed citations
11.
Smart, D. F., et al.. (1995). Comment On the Minimum Mass Path Of a Uni-directional Solar Neutron Particle Beam Through The Earth Atmosphere. ICRC. 4. 171. 3 indexed citations
12.
O’Brien, K., et al.. (1994). Accelerator skyshine: Tyger, tyger, burning bright. CERN Bulletin. 44. 1–15. 9 indexed citations
13.
Chiu‐Tsao, Sou‐Tung, et al.. (1990). Dose rate determination for 125I seeds. Medical Physics. 17(5). 815–825. 45 indexed citations
14.
O’Brien, K.. (1979). Radiation dose from solar flares at ground level.. PubMed. 36(1). 63–5. 1 indexed citations
15.
O’Brien, K.. (1978). LUIN, a code for the calculation of cosmic ray propagation in the atmosphere. NASA STI/Recon Technical Report N. 78. 33014. 18 indexed citations
16.
O’Brien, K.. (1978). The effect of the male-female body-size difference on absorbed dose-rate distributions in humans from natural gamma rays.. Munich Personal RePEc Archive (Ludwig Maximilian University of Munich). 34(1). 107–12. 13 indexed citations
17.
O’Brien, K.. (1978). The response of LiF thermoluminescence dosimeters to the ground-level cosmic-ray background. The International Journal of Applied Radiation and Isotopes. 29(12). 735–739. 9 indexed citations
18.
O’Brien, K.. (1971). Cosmic-ray propagation in the atmosphere. Nuovo cimento della Società italiana di fisica. A, Nuclei, particles and fields. 3(4). 521–547. 54 indexed citations
19.
Braid, T.H., et al.. (1971). Calculations of Shielding for Large Cyclotrons. IEEE Transactions on Nuclear Science. 18(3). 821–824. 12 indexed citations
20.
O’Brien, K., et al.. (1970). CALCULATION OF DOSE AND DOSE-EQUIVALENT RATES TO MAN IN THE ATMOSPHERE FROM GALACTIC COSMIC-RAYS.. OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information). 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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