W. Ulmer

1.6k total citations
67 papers, 1.1k citations indexed

About

W. Ulmer is a scholar working on Radiation, Pulmonary and Respiratory Medicine and Radiology, Nuclear Medicine and Imaging. According to data from OpenAlex, W. Ulmer has authored 67 papers receiving a total of 1.1k indexed citations (citations by other indexed papers that have themselves been cited), including 29 papers in Radiation, 24 papers in Pulmonary and Respiratory Medicine and 16 papers in Radiology, Nuclear Medicine and Imaging. Recurrent topics in W. Ulmer's work include Advanced Radiotherapy Techniques (22 papers), Radiation Therapy and Dosimetry (22 papers) and Nuclear Physics and Applications (8 papers). W. Ulmer is often cited by papers focused on Advanced Radiotherapy Techniques (22 papers), Radiation Therapy and Dosimetry (22 papers) and Nuclear Physics and Applications (8 papers). W. Ulmer collaborates with scholars based in Germany, Switzerland and United States. W. Ulmer's co-authors include D. Harder, Wolfgang Kaissl, J Pyyry, Emil Reif, W. Düchting, Barbara Schaffner, E. Matsinos, L Tillikainen, S. Siljamäki and H. Helminen and has published in prestigious journals such as Stem Cells, European Journal of Cancer and Physics in Medicine and Biology.

In The Last Decade

W. Ulmer

64 papers receiving 964 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
W. Ulmer Germany 15 752 625 446 186 98 67 1.1k
Harald H. Rossi United States 23 928 1.2× 1.3k 2.0× 846 1.9× 77 0.4× 18 0.2× 66 2.0k
Jürgen Besserer Switzerland 22 1.0k 1.3× 1.0k 1.6× 473 1.1× 93 0.5× 10 0.1× 65 1.4k
Stanley B. Curtis United States 14 311 0.4× 514 0.8× 404 0.9× 23 0.1× 31 0.3× 28 817
C. Ross Schmidtlein United States 19 804 1.1× 652 1.0× 1.3k 2.9× 405 2.2× 6 0.1× 77 1.7k
Guy Garty United States 24 466 0.6× 776 1.2× 663 1.5× 192 1.0× 11 0.1× 104 1.8k
D. Harder Germany 19 747 1.0× 637 1.0× 523 1.2× 179 1.0× 8 0.1× 89 1.3k
G.A.P. Cirrone Italy 29 2.1k 2.8× 2.3k 3.7× 764 1.7× 183 1.0× 7 0.1× 266 3.4k
Jean‐François Germond Switzerland 18 2.0k 2.7× 2.1k 3.4× 709 1.6× 92 0.5× 5 0.1× 33 2.5k
G. Randers‐Pehrson United States 18 357 0.5× 542 0.9× 617 1.4× 119 0.6× 2 0.0× 46 1.1k
Mauro Tambasco Canada 15 166 0.2× 218 0.3× 228 0.5× 86 0.5× 11 0.1× 40 714

Countries citing papers authored by W. Ulmer

Since Specialization
Citations

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

Fields of papers citing papers by W. Ulmer

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of W. Ulmer

This figure shows the co-authorship network connecting the top 25 collaborators of W. Ulmer. A scholar is included among the top collaborators of W. Ulmer 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 W. Ulmer. W. Ulmer 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.
Ulmer, W.. (2015). A new calculation formula of nuclear cross-section of therapeutic protons. 1(1). 117–117. 2 indexed citations
3.
Ulmer, W.. (2013). Convolution/deconvolution of generalized Gaussian kernels with applications to proton/photon physics and electron capture of charged particles. Journal of Physics Conference Series. 410. 12122–12122. 2 indexed citations
4.
5.
Ulmer, W. & Barbara Schaffner. (2010). Foundation of an analytical proton beamlet model for inclusion in a general proton dose calculation system. Radiation Physics and Chemistry. 80(3). 378–389. 49 indexed citations
6.
7.
Ulmer, W. & E. Matsinos. (2010). Theoretical methods for the calculation of Bragg curves and 3D distributions of proton beams. The European Physical Journal Special Topics. 190(1). 1–81. 36 indexed citations
8.
Tillikainen, L, et al.. (2008). A 3D pencil-beam-based superposition algorithm for photon dose calculation in heterogeneous media. Physics in Medicine and Biology. 53(14). 3821–3839. 110 indexed citations
9.
Ulmer, W., J Pyyry, & Wolfgang Kaissl. (2005). A 3D photon superposition/convolution algorithm and its foundation on results of Monte Carlo calculations*. Physics in Medicine and Biology. 50(8). 1767–1790. 201 indexed citations
10.
Ulmer, W. & Wolfgang Kaissl. (2003). The inverse problem of a Gaussian convolution and its application to the finite size of the measurement chambers/detectors in photon and proton dosimetry. Physics in Medicine and Biology. 48(6). 707–727. 70 indexed citations
11.
Ulmer, W. & D. Harder. (1997). Corrected Tables of the Area Integral I(z) for the Triple Gaussian Pencil Beam Model. Zeitschrift für Medizinische Physik. 7(3). 192–193. 12 indexed citations
12.
Harder, D. & W. Ulmer. (1997). Zur analytischen Lösung des „inversen problems” der Bestrahlungsplanung bei statischen und dynamischen Keilfiltern. Zeitschrift für Medizinische Physik. 7(3). 178–184. 2 indexed citations
13.
Düchting, W., et al.. (1996). Cancer: A challenge for control theory and computer modelling. European Journal of Cancer. 32(8). 1283–1292. 31 indexed citations
14.
Ulmer, W. & D. Harder. (1995). A Triple Gaussian Pencil beam Model for Photon beam Treatment Planning. Zeitschrift für Medizinische Physik. 5(1). 25–30. 125 indexed citations
15.
Düchting, W., et al.. (1995). Radiogenic responses of normal cells induced by fractionated irradiation--a simulation study. Part II. Late responses.. PubMed. 171(9). 525–33. 5 indexed citations
16.
Düchting, W., et al.. (1989). Computer simulation of clinical irradiation schemes applied to in vitro tumor spheroids.. PubMed. 165(12). 873–8. 9 indexed citations
17.
Ulmer, W.. (1983). On the application of stochastic partition functions in radiotherapy II: modifications of intensity and depth dose profiles by wedge filters.. PubMed. 159(9). 559–66. 3 indexed citations
18.
Ulmer, W.. (1980). On the representation of atoms and molecules as self-interacting field with internal structure. Theoretical Chemistry Accounts. 55(3). 179–205. 10 indexed citations
19.
Ulmer, W.. (1973). Quantised De Sitter space and the connection to the Pauli principle. International Journal of Theoretical Physics. 8(1). 1–10. 3 indexed citations
20.
Ulmer, W. & Emil Reif. (1965). Die obstruktiven Erkrankungen der Atemwege. DMW - Deutsche Medizinische Wochenschrift. 90(41). 1803–1809. 92 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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