J. L. Ullmann

3.5k total citations
188 papers, 2.4k citations indexed

About

J. L. Ullmann is a scholar working on Radiation, Nuclear and High Energy Physics and Aerospace Engineering. According to data from OpenAlex, J. L. Ullmann has authored 188 papers receiving a total of 2.4k indexed citations (citations by other indexed papers that have themselves been cited), including 141 papers in Radiation, 115 papers in Nuclear and High Energy Physics and 102 papers in Aerospace Engineering. Recurrent topics in J. L. Ullmann's work include Nuclear Physics and Applications (140 papers), Nuclear physics research studies (107 papers) and Nuclear reactor physics and engineering (98 papers). J. L. Ullmann is often cited by papers focused on Nuclear Physics and Applications (140 papers), Nuclear physics research studies (107 papers) and Nuclear reactor physics and engineering (98 papers). J. L. Ullmann collaborates with scholars based in United States, Czechia and France. J. L. Ullmann's co-authors include T. A. Bredeweg, R. C. Haight, J. M. O’Donnell, A. Couture, M. Jändel, L. Krusin‐Elbaum, J. L. Romero, N. S. P. King, J. R. Thompson and R. S. Rundberg and has published in prestigious journals such as Nature, Physical Review Letters and SHILAP Revista de lepidopterología.

In The Last Decade

J. L. Ullmann

177 papers receiving 2.3k citations

Peers

Countries citing papers authored by J. L. Ullmann

Since Specialization

Citations

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

Fields of papers citing papers by J. L. Ullmann

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by J. L. Ullmann. 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 J. L. Ullmann. The network helps show where J. L. Ullmann may publish in the future.

Co-authorship network of co-authors of J. L. Ullmann

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

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	Tm169(n,γ) cross section and statistical decay properties from measurements at the DANCE facility 2025 ·Physical review. C ·(unknown), (unknown), A. Couture, (unknown), F. Gunsing, Toshihiko Kawano, Keegan Kelly, M. Krtička, (unknown), C. J. Prokop, R. Reifarth, G. Rusev, J. L. Ullmann, (unknown)	0
2	First study of Zr88+n at DICER at LANSCE at energies up to 500 eV and relevance to explosive environments 2025 ·Physical review. C ·A. Stamatopoulos, P. Koehler, B. DiGiovine, Veronika Mocko, (unknown), Christiaan Vermeulen, A. Couture, (unknown), (unknown), (unknown), (unknown), J. L. Ullmann	1
3	Constraining calculations of Pu239(n,γ) cross sections with multistep cascade γ-ray spectra measured at the DANCE facility 2025 ·Physical review. C ·J. L. Ullmann, Toshihiko Kawano, (unknown), T. A. Bredeweg, A. Couture, (unknown), S. Mosby, J. M. O’Donnell, R. S. Rundberg, Hirokazu Sasaki, (unknown), J. B. Wilhelmy, M. Krtička, A. Chyzh, R. Henderson, C. Y. Wu	0
4	Neutron capture cross section of $$^{83}$$Kr 2023 ·The European Physical Journal A ·(unknown), (unknown), A. Couture, M. Krtička, S. Mosby, J. M. O’Donnell, R. Reifarth, G. Rusev, J. L. Ullmann, (unknown), (unknown)	0
5	Measurement of the U238(n,f) prompt fission neutron spectrum from 10 keV to 10 MeV induced by neutrons with 1.5–20 MeV energy 2023 ·Physical review. C ·Keegan Kelly, M. Devlin, J. M. O’Donnell, Denise Neudecker, A. E. Lovell, R. C. Haight, C. Y. Wu, R. Henderson, (unknown), Toshihiko Kawano, J. L. Ullmann, Ν. Fotiades, J. Henderson, S. Mosby, T.N. Taddeucci, P. Talou, Morgan White, (unknown), Hye Young Lee	2
6	Measurement of the neutron-induced capture-to-fission cross section ratio in U233 at LANSCE 2023 ·Physical review. C ·(unknown), A. Couture, E. M. Bond, T. A. Bredeweg, (unknown), Toshihiko Kawano, A. E. Lovell, G. Rusev, Ionel Stetcu, J. L. Ullmann, L.C. Leal, Marco Pigni	2
7	Photon strength functions, level densities, and isomeric ratio in Er168 from the radiative neutron capture measured at the DANCE facility 2023 ·Physical review. C ·(unknown), A. Couture, (unknown), J. Kvasil, M. Krtička, V. O. Nesterenko, J. M. O’Donnell, C. J. Prokop, G. Rusev, J. L. Ullmann, (unknown)	2
8	Experimental Prompt Fission Neutron Spectra Comparisons for the ^235,238U(n, f) and ²³⁹Pu(n, f) Reactions 2023 ·EPJ Web of Conferences ·M. Devlin, (unknown), (unknown), J. M. O’Donnell, Denise Neudecker, R. C. Haight, (unknown), Ν. Fotiades, J. L. Ullmann, C. Y. Wu, J. Henderson, R. Henderson, (unknown)	1
9	Measurement of the U235(n,f) prompt fission neutron spectrum from 10 keV to 10 MeV induced by neutrons of energy from 1 MeV to 20 MeV 2022 ·Physical review. C ·Keegan Kelly, (unknown), M. Devlin, J. M. O’Donnell, Denise Neudecker, A. E. Lovell, R. C. Haight, C. Y. Wu, R. Henderson, Toshihiko Kawano, (unknown), S. Mosby, J. L. Ullmann, Ν. Fotiades, J. Henderson, T.N. Taddeucci, Hye Young Lee, P. Talou, Morgan White	14
10	Spin assignment and statistical properties of neutron resonances from Dy161,163(n,γ) and Er167(n,γ) measured at the DANCE facility 2022 ·Physical review. C ·(unknown), (unknown), (unknown), T. A. Bredeweg, A. Couture, (unknown), M. Jändel, J. Kroll, M. Krtička, G. E. Mitchell, J. M. O’Donnell, C. J. Prokop, G. Rusev, J. L. Ullmann	2
11	Measurement of the neutron capture cross section on argon 2019 ·Physical review. D ·V. Fischer, L. Pagani, L. Pickard, A. Couture, S. Gardiner, C. Grant, (unknown), (unknown), L. Pandola, C. J. Prokop, R. Svoboda, J. L. Ullmann, J. Wang	3
12	Measurement of theAm242mneutron-induced reaction cross sections 2017 ·Physical review. C ·(unknown), C. Y. Wu, R. Henderson, B. Bucher, (unknown), A. Chyzh, T. A. Bredeweg, (unknown), A. Couture, M. Jändel, S. Mosby, J. L. Ullmann	1
13	Absolute measurement of thePu242neutron-capture cross section 2016 ·Physical review. C ·(unknown), C. Y. Wu, R. Henderson, B. Bucher, A. Chyzh, T. A. Bredeweg, (unknown), A. Couture, M. Jändel, S. Mosby, J. M. O’Donnell, J. L. Ullmann	6
14	Development of Neutron Detector Arrays for Neutron-Induced Reaction Measurements 2013 ·IEEE Transactions on Nuclear Science ·B. A. Perdue, R. C. Haight, Hye Young Lee, T.N. Taddeucci, J. M. O’Donnell, Morgan White, (unknown), M. Devlin, J. L. Ullmann, A. Laptev, T. A. Bredeweg, M. Jändel, R. O. Nelson, S.A. Wender, C. Y. Wu, E. Kwan, A. Chyzh, R. Henderson, J. M. Gostic	4
15	Systematics of promptγ-ray emission in fission 2013 ·Physical Review C ·A. Chyzh, C. Y. Wu, E. Kwan, R. Henderson, J. M. Gostic, T. A. Bredeweg, A. Couture, R. C. Haight, A. C. Hayes, M. Jändel, Hye Young Lee, J. M. O’Donnell, J. L. Ullmann	28
16	Proton-induced cross sections relevant to production of 225Ac and 223Ra in natural thorium targets below 200MeV 2012 ·Applied Radiation and Isotopes ·John W. Weidner, S. G. Mashnik, Kevin D. John, François Hemez, B. Ballard, (unknown), Eva R. Birnbaum, Leo Bitteker, A. Couture, (unknown), Michael E. Fassbender, M. S. Gulley, (unknown), J. L. Ullmann, Laura E. Wolfsberg, F.M. Nortier	76
17	New Precision Measurements of theU235(n,γ)Cross Section 2012 ·Physical Review Letters ·M. Jändel, T. A. Bredeweg, E. M. Bond, M. B. Chadwick, A. Couture, J. M. O’Donnell, M. M. Fowler, R. C. Haight, Toshihiko Kawano, R. Reifarth, R. S. Rundberg, J. L. Ullmann, D. J. Vieira, J.M. Wouters, J. B. Wilhelmy, C. Y. Wu, J. A. Becker	31
18	Limitations of the distorted-wave impulse approximation in describing the energy dependence of theB10(n,p)Be10(g.s.) reaction 2007 ·Physical Review C ·D. S. Sorenson, J. L. Ullmann, (unknown), (unknown), R. C. Haight, N. S. P. King, R. Lindgren, H. Baghaei, E.J. Stephenson, F.P. Brady, J. L. Romero, J. Rapaport, B. L. Clausen, C. Wuest, Francesca Sammarruca	1
19	Enhancement of transport critical current densities at 75 K in (Bi,Pb)2Sr2Ca2Cu3Oy/Ag tapes by means of fission tracks from irradiation by 0.8 GeV protons 1995 ·Applied Physics Letters ·H. Safar, J. H. Cho, S. Fleshler, M. P. Maley, J. O. Willis, J.Y. Coulter, J. L. Ullmann, (unknown), G. N. Riley, M.W. Rupich, J. R. Thompson, L. Krusin‐Elbaum	74
20	New Giant Dipole Strength inLi6andLi7as Revealed via (n,p) at 60 MeV 1983 ·Physical Review Letters ·F. Brady, (unknown), J. L. Romero, C.M. Castaneda, (unknown), J. L. Ullmann, (unknown)	24

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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