Christer Ullberg

683 total citations
21 papers, 471 citations indexed

About

Christer Ullberg is a scholar working on Radiology, Nuclear Medicine and Imaging, Biomedical Engineering and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Christer Ullberg has authored 21 papers receiving a total of 471 indexed citations (citations by other indexed papers that have themselves been cited), including 17 papers in Radiology, Nuclear Medicine and Imaging, 17 papers in Biomedical Engineering and 12 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Christer Ullberg's work include Advanced X-ray and CT Imaging (17 papers), Medical Imaging Techniques and Applications (13 papers) and Digital Radiography and Breast Imaging (12 papers). Christer Ullberg is often cited by papers focused on Advanced X-ray and CT Imaging (17 papers), Medical Imaging Techniques and Applications (13 papers) and Digital Radiography and Breast Imaging (12 papers). Christer Ullberg collaborates with scholars based in United States, Sweden and Netherlands. Christer Ullberg's co-authors include Andrew D. A. Maidment, Emil Y. Sidky, Xiaochuan Pan, Predrag R. Bakić, Yuval Duchin, T. Francke, Lars Lindqvist, Ann-Katherine Carton, Jonas A. Nilsson and Gunilla Svane and has published in prestigious journals such as SHILAP Revista de lepidopterología, Physics in Medicine and Biology and Medical Physics.

In The Last Decade

Christer Ullberg

21 papers receiving 441 citations

Peers

Christer Ullberg
Alexander Stewart United States
Justin L. Ducote United States
Richard Van Metter United States
Tong Xu United States
Nicole T. Ranger United States
Hans Bornefalk Sweden
Kyle McMillan United States
Thomas R. Fewell United States
Ludwig Ritschl Germany
Alexander Stewart United States
Christer Ullberg
Citations per year, relative to Christer Ullberg Christer Ullberg (= 1×) peers Alexander Stewart

Countries citing papers authored by Christer Ullberg

Since Specialization
Citations

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

Fields of papers citing papers by Christer Ullberg

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Christer Ullberg

This figure shows the co-authorship network connecting the top 25 collaborators of Christer Ullberg. A scholar is included among the top collaborators of Christer Ullberg 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 Christer Ullberg. Christer Ullberg 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.
Ullberg, Christer, et al.. (2023). Digital radiography by counting photons: innovative solution for testing very thick parts. SHILAP Revista de lepidopterología. 1(1). 1 indexed citations
2.
Ullberg, Christer, et al.. (2023). Photon counting-energy integrating hybrid flat panel detector systems for image-guided interventions: an experimental proof-of-concept. Physics in Medicine and Biology. 68(13). 135009–135009. 5 indexed citations
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Sidky, Emil Y., et al.. (2014). Analysis of iterative region-of-interest image reconstruction for x-ray computed tomography. Journal of Medical Imaging. 1(3). 31007–31007. 26 indexed citations
6.
Ullberg, Christer, et al.. (2013). Measurements of a dual-energy fast photon counting CdTe detector with integrated charge sharing correction. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 50 indexed citations
7.
Bakić, Predrag R., et al.. (2011). Development of a physical 3D anthropomorphic breast phantom. Medical Physics. 38(2). 891–896. 84 indexed citations
8.
Sidky, Emil Y., Yuval Duchin, Xiaochuan Pan, & Christer Ullberg. (2011). A constrained, total-variation minimization algorithm for low-intensity x-ray CT. Medical Physics. 38(S1). S117–S125. 74 indexed citations
9.
Sidky, Emil Y., Yuval Duchin, Ingrid Reiser, Christer Ullberg, & Xiaochuan Pan. (2011). Optimizing algorithm parameters based on a model observer detection task for image reconstruction in digital breast tomosynthesis. 4230–4232. 2 indexed citations
10.
Svane, Gunilla, et al.. (2011). Clinical experience of photon counting breast tomosynthesis: comparison with traditional mammography. Acta Radiologica. 52(2). 134–142. 40 indexed citations
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Carton, Ann-Katherine, et al.. (2007). Dual-energy subtraction for contrast-enhanced digital breast tomosynthesis. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 6510. 651007–651007. 18 indexed citations
14.
Maidment, Andrew D. A., et al.. (2006). Evaluation of a photon-counting breast tomosynthesis imaging system. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 6142. 61420B–61420B. 17 indexed citations
15.
Maidment, Andrew D. A., et al.. (2005). Evaluation of a photon-counting breast tomosynthesis imaging system. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 5745. 572–572. 34 indexed citations
16.
Francke, T., et al.. (2002). <title>Evaluation of a photon-counting mammography system</title>. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 4682. 202–208. 11 indexed citations
17.
Francke, T., et al.. (2001). Dose reduction using photon-counting x-ray imaging. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 4320. 127–127. 9 indexed citations
18.
Francke, T., et al.. (2001). Dose reduction in medical X-ray imaging using noise free photon counting. Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment. 471(1-2). 85–87. 17 indexed citations
19.
Olofsson, G., J. A. Tauber, Pascal Febvre, et al.. (1998). Low interstellar abundance of O2 confirmed in a balloon experiment. SPIRE - Sciences Po Institutional REpository. 1 indexed citations
20.
Tauber, J. A., Pascal Febvre, H.-G. Florén, et al.. (1998). Low interstellar abundance of O 2 confirmed by the PIROG 8 balloon experiment. 339(3). 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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