This map shows the geographic impact of H. Bluem'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 H. Bluem with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites H. Bluem more than expected).
This network shows the impact of papers produced by H. Bluem. 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 H. Bluem. The network helps show where H. Bluem may publish in the future.
Co-authorship network of co-authors of H. Bluem
This figure shows the co-authorship network connecting the top 25 collaborators of H. Bluem.
A scholar is included among the top collaborators of H. Bluem 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 H. Bluem. H. Bluem is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Bluem, H., D.H. Dowell, H. Loos, et al.. (2013). ACCELERATOR BEAMLINE PERFORMANCE FOR THE IR FEL AT THE FRITZ-HABER-INSTITUT, BERLIN. MPG.PuRe (Max Planck Society). 365–368.3 indexed citations
4.
Gottschalk, S.C., A. Valla, H. Bluem, et al.. (2013). Design and Performance of the Wedged Pole Hybrid Undulator for the Fritz-Haber-Institut IR FEL. MPG.PuRe (Max Planck Society). 575–578.2 indexed citations
Bluem, H., Bernd Abel, E. Peterson, et al.. (2007). Superconducting RF Photocathode Gun for Low Emittance Polarized Electron Beams.1 indexed citations
7.
Ambrosio, Antonio, Michael Cole, E. Peterson, et al.. (2006). Design and Fabrication of an FEL Injector Cryomodule. Proceedings of the 2005 Particle Accelerator Conference. 5534. 3724–3726.2 indexed citations
8.
Bluem, H., A.M.M. Todd, I. Ben‐Zvi, et al.. (2004). Electron injectors for next-generation x-ray sources. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 5534. 132–132.2 indexed citations
Bluem, H., et al.. (2003). Recent advances in high-brightness electron guns at AES. Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment. 507(1-2). 215–219.1 indexed citations
Cole, Michael, et al.. (2000). DEVELOPMENT OF A NOVEL SUPERCONDUCTING RF PHOTOCATHODE ELECTRON GUN.. University of North Texas Digital Library (University of North Texas). 116.2 indexed citations
Bluem, H., R.H. Jackson, H.P. Freund, D.E. Pershing, & V. L. Granatstein. (1992). Demonstration of a second harmonic free-electron laser. Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment. 318(1-3). 105–108.1 indexed citations
Pershing, D.E., R.H. Jackson, H. Bluem, & H.P. Freund. (1991). Improved amplifier performance of the NRL ubitron. Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment. 304(1-3). 127–132.8 indexed citations
18.
Pershing, D.E., et al.. (1989). The Ku-band ubitron experiment at the Naval Research Laboratory. Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment. 285(1-2). 56–62.4 indexed citations
19.
Freund, H. P., H. Bluem, & R.H. Jackson. (1989). Nonlinear theory and design of a harmonic Ubitron/Free Electron Laser. Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment. 285(1-2). 169–175.4 indexed citations
20.
Bluem, H., P.E. Latham, W. Lawson, & C. D. Striffler. (1987). Single-Particle Motion in a Large-Orbit Gyrotron. IEEE Transactions on Microwave Theory and Techniques. 35(11). 946–955.3 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.