Olaf Hälker

1.5k total citations
29 papers, 253 citations indexed

About

Olaf Hälker is a scholar working on Nuclear and High Energy Physics, Electrical and Electronic Engineering and Astronomy and Astrophysics. According to data from OpenAlex, Olaf Hälker has authored 29 papers receiving a total of 253 indexed citations (citations by other indexed papers that have themselves been cited), including 20 papers in Nuclear and High Energy Physics, 14 papers in Electrical and Electronic Engineering and 13 papers in Astronomy and Astrophysics. Recurrent topics in Olaf Hälker's work include Particle Detector Development and Performance (18 papers), CCD and CMOS Imaging Sensors (14 papers) and Astrophysical Phenomena and Observations (13 papers). Olaf Hälker is often cited by papers focused on Particle Detector Development and Performance (18 papers), CCD and CMOS Imaging Sensors (14 papers) and Astrophysical Phenomena and Observations (13 papers). Olaf Hälker collaborates with scholars based in Germany, Italy and United Kingdom. Olaf Hälker's co-authors include L. Strüder, Norbert Meidinger, Robert Andritschke, G. Lutz, P. Lechner, Rainer Richter, Nils Kimmel, M. Porro, H. Soltau and I‎. ‎Perić and has published in prestigious journals such as Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment, IEEE Transactions on Nuclear Science and Microscopy and Microanalysis.

In The Last Decade

Olaf Hälker

26 papers receiving 247 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Olaf Hälker Germany 10 190 138 135 91 26 29 253
L. Pacciani Italy 10 214 1.1× 44 0.3× 105 0.8× 134 1.5× 13 0.5× 35 262
R. Rando Italy 10 198 1.0× 151 1.1× 100 0.7× 60 0.7× 9 0.3× 80 298
G. A. Blair United Kingdom 8 213 1.1× 101 0.7× 46 0.3× 55 0.6× 48 1.8× 39 275
O. Bourrion France 8 104 0.5× 61 0.4× 51 0.4× 90 1.0× 8 0.3× 41 221
Zhixing Ling China 8 94 0.5× 62 0.4× 44 0.3× 120 1.3× 10 0.4× 28 188
R. M. Curado da Silva Portugal 9 86 0.5× 133 1.0× 117 0.9× 124 1.4× 5 0.2× 45 224
Alda Rubini Italy 8 132 0.7× 26 0.2× 85 0.6× 111 1.2× 18 0.7× 34 184
M. Tytgat Belgium 9 316 1.7× 101 0.7× 39 0.3× 38 0.4× 6 0.2× 40 402
Larry Ruckman United States 11 252 1.3× 133 1.0× 136 1.0× 51 0.6× 20 0.8× 49 347
J. E. Sauvestre France 7 96 0.5× 84 0.6× 64 0.5× 17 0.2× 10 0.4× 12 197

Countries citing papers authored by Olaf Hälker

Since Specialization
Citations

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

Fields of papers citing papers by Olaf Hälker

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Olaf Hälker

This figure shows the co-authorship network connecting the top 25 collaborators of Olaf Hälker. A scholar is included among the top collaborators of Olaf Hälker 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 Olaf Hälker. Olaf Hälker 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.
Reiffers, Jonas, Benjamin Mican, T. Schanz, et al.. (2024). Detector electronics sub-system development for the NewAthena wide field imager. 121813W. 166–166. 1 indexed citations
2.
Meidinger, Norbert, Robert Andritschke, K. Dennerl, et al.. (2021). eROSITA camera array on the SRG satellite. Journal of Astronomical Telescopes Instruments and Systems. 7(2). 8 indexed citations
3.
Bayer, J., S. Brandt, Olaf Hälker, et al.. (2016). WFI electronics and on-board data processing. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 9905. 99052D–99052D. 6 indexed citations
4.
Meidinger, Norbert, Robert Andritschke, W. Bornemann, et al.. (2014). Report on the eROSITA camera system. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 9144. 91441W–91441W. 8 indexed citations
5.
Meidinger, Norbert, Robert Andritschke, W. Bornemann, et al.. (2013). Progress of the x-ray CCD camera development for the eROSITA telescope. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 8859. 88590B–88590B. 9 indexed citations
6.
Meidinger, Norbert, Robert Andritschke, Stefanie Granato, et al.. (2011). Status of the CCD camera for the eROSITA space telescope. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 8145. 814502–814502. 3 indexed citations
7.
Meidinger, Norbert, Robert Andritschke, W. Assmann, et al.. (2010). CCD detector development for the eROSITA space telescope. 7742. 24–31. 8 indexed citations
8.
Andritschke, Robert, Olaf Hälker, Sven Herrmann, et al.. (2010). First qualification and selection of the eROSITA PNCCDs. Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment. 624(2). 330–333. 4 indexed citations
9.
Andritschke, Robert, Norbert Meidinger, Robert Hartmann, et al.. (2010). Particle detection with PNCCDs. 7736. 1906–1908. 1 indexed citations
10.
Andritschke, Robert, Olaf Hälker, Robert Hartmann, et al.. (2010). Electronic test system for the eROSITA x-ray PNCCDs. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 7742. 774211–774211. 2 indexed citations
11.
Treis, J., Olaf Hälker, L. Andricek, et al.. (2008). DEPFET based x-ray detectors for the MIXS focal plane on BepiColombo. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 7021. 70210Z–70210Z. 4 indexed citations
12.
Meidinger, Norbert, Robert Andritschke, Olaf Hälker, et al.. (2007). Fast large-area spectroscopic and imaging CCD detectors for x-ray astronomy with eROSITA and for exploration of the nanocosmos. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 6686. 66860H–66860H. 6 indexed citations
13.
Treis, J., L. Bombelli, C. Fiorini, et al.. (2006). Advancements in DEPMOSFET device developments for XEUS. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 6276. 627610–627610. 7 indexed citations
14.
Treis, J., P. Fischer, Olaf Hälker, et al.. (2006). Study of noise and spectroscopic performance of DEPMOSFET matrix prototypes for XEUS. Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment. 568(1). 191–200. 8 indexed citations
15.
Lutz, G., L. Andricek, R. C. Eckardt, et al.. (2006). DEPFET—detectors: New developments. Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment. 572(1). 311–315. 16 indexed citations
16.
Porro, M., Giorgio Ferrari, P. Fischer, et al.. (2006). Spectroscopic performance of the DePMOS detector/amplifier device with respect to different filtering techniques and operating conditions. IEEE Transactions on Nuclear Science. 53(1). 401–408. 33 indexed citations
17.
Meidinger, Norbert, Robert Andritschke, Olaf Hälker, et al.. (2006). Next generation of pnCCDs for X-ray spectroscopy and imaging. Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment. 568(1). 141–148. 18 indexed citations
18.
Treis, J., P. Fischer, Olaf Hälker, et al.. (2005). DEPMOSFET Active Pixel Sensor Prototypes for the XEUS Wide Field Imager. IEEE Symposium Conference Record Nuclear Science 2004.. 2. 1019–1023. 18 indexed citations
19.
Treis, J., P. Fischer, Olaf Hälker, et al.. (2005). Noise and spectroscopic performance of DEPMOSFET matrix devices for XEUS. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 5898. 58980X–58980X. 5 indexed citations
20.
Fischer, P., Olaf Hälker, Robert Kohrs, et al.. (2004). First results of DEPFET-based active-pixel-sensor prototypes for the XEUS wide-field imager. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 5501. 89–89. 17 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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