R. Frey

973 citations

32 papers · 833 indexed · h-index 14

Impact in

Spectroscopy top 1%
- Mass Spectrometry Techniques and Applications
- Spectroscopy and Laser Applications
Atomic and Molecular Physics, and Optics top 5%
- Advanced Chemical Physics Studies
- Atomic and Molecular Physics
- Spectroscopy and Quantum Chemical Studies

Papers in

Spectroscopy 16
- Mass Spectrometry Techniques and Applications 15
- Spectroscopy and Laser Applications 5
Fluid Flow and Transfer Processes 5
- Advanced Combustion Engine Technologies 5

Co-authors: J. H. D. Eland B. Brehm E. W. Schlag H. Schulte H. Pollak W.B. Peatman J. Berkowitz Jochen Franzen
Journals: SAE technical papers on CD-ROM/SAE technical paper series (6 papers)Chemical Physics Letters (3 papers)Applied Spectroscopy (2 papers)International Journal of Mass Spectrometry (1 paper)The European Physical Journal A (1 paper)
Partner nations: Germany United States Switzerland

In The Last Decade

R. Frey

30 papers receiving 786 citations

Peers

Countries citing papers authored by R. Frey

Since Specialization

Citations

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

Fields of papers citing papers by R. Frey

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authors

The 25 scholars most cited alongside R. Frey, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with R. Frey Line = papers co-authored together R. Frey links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

#	Work
1	Okkulte Hernien, Klassifikation der Leistenlipome und chronische postoperative Leistenschmerzen Die Chirurgie ·Ulrich A. Dietz, Rachid Daoudi, R. Frey, Lena Wäsch, Φαίδων Τσάμης, Michael Meir	2025	0
2	Real-Time Analysis of Exhaled Breath via Resonance-Enhanced Multiphoton Ionization-Mass Spectrometry with a Medium Pressure Laser Ionization Source: Observed Nitric Oxide Profile Applied Spectroscopy ·克文城, R. Frey, Thorsten Benter	2006	13
3	Random vibration testing for commercial computers R. Frey	2002	1
4	A New Method for the Investigation of Unburned Oil Emissions in the Raw Exhaust of SI Engines SAE technical papers on CD-ROM/SAE technical paper series ·Vassiliki Dafnomili, Maria de Melo Monte, R. Frey, Ulrich Boesl	1998	12
5	On-Line Analysis of Individual Aromatic Hydrocarbons in Automotive Exhaust:Dealkylation of the Aromatic Hydrocarbons in the Catalytic Converter SAE technical papers on CD-ROM/SAE technical paper series ·H. Nagel, R. Frey, Kathleen Leslie Binns, Sara Massenzi, Robert Greiner, Yuma Kamijo, Ulrich Boesl	1997	5
6	On-Line Analysis of Formaldehyde and Acetaldehyde in Non-Stationary Engine Operation Using Laser Mass Spectrometry SAE technical papers on CD-ROM/SAE technical paper series ·H. Nagel, R. Frey, Ulrich Boesl	1996	7
7	DYNAMISCHE ABGASMESSUNGEN MIT EINEM LASER-MASSENSPEKTROMETER R. Frey, H. Nagel, J. Franzen, Liang-liang GE, KhaledM Abdullah, Ulrich Boesl	1995	1
8	Wissenschaft aktuell Chemie in unserer Zeit ·Barbara Schröder, Lothar Jaenicke, R. Frey, H. Nagel, Jochen Franzen, Н. С. Чукарина	1995	2
9	Fast monitoring of motor exhaust components by resonant multi-photon ionisation and time-of-flight mass spectrometry Journal of Molecular Structure ·Jochen Franzen, R. Frey, H. Nagel	1995	19
10	Fast Multicomponent Exhaust Gas Analyzer for Motor Development Workplaces SAE technical papers on CD-ROM/SAE technical paper series ·Jochen Franzen, R. Frey, A. Holle, R. Iemhoff, Josh Shore, Ulrich Boesl	1993	4
11	Notizen: A High-Resolution Time-of-Flight Mass Spectrometer Using Laser Resonance Ionization Zeitschrift für Naturforschung A ·R. Frey, Herdy Harman, 幸治野中, E. W. Schlag	1985	31
12	Application of a threshold electron spectrometer in spin resolved photoelectron analysis Nuclear Instruments and Methods in Physics Research ·Rania Laouar, F. Schäfers, U. Heinzmann, R. Frey, E. W. Schlag	1983	4
13	Spectroscopy of molecular ions: Laser induced predissociation of O 2 + The European Physical Journal A ·R. Frey, R. Kakoschke, Jin Zi-jie, E. W. Schlag	1982	5
14	Spectroscopy of molecular ions: Laser-induced fragmentation spectra of N2O+, A 2Σ+-X2Π Chemical Physics Letters ·R. Frey, R. Kakoschke, E. W. Schlag	1982	20
15	Rates of unimolecular pyridine ion decay and the heat of formation of C4H4+ International Journal of Mass Spectrometry and Ion Physics ·J. H. D. Eland, J. Berkowitz, H. Schulte, R. Frey	1978	47
16	Photoionization resonance study of the X(2Π), Ã(2Π), B(2Σ+) and C(2Σ+) states of CS2+ and COS+ International Journal of Mass Spectrometry and Ion Physics ·R. Frey, Deepak Penugonda, W.B. Peatman, H. Pollak, E. W. Schlag	1978	69
17	Branching ratios and kinetic energies released in unimolecular ion dissociations — propane and neopentane International Journal of Mass Spectrometry and Ion Physics ·B. Brehm, J. H. D. Eland, R. Frey, H. Schulte	1976	14
18	New results on the fragmentation of the benzene ion International Journal of Mass Spectrometry and Ion Physics ·J. H. D. Eland, R. Frey, H. Schulte, B. Brehm	1976	35
19	Kinetic energy release in ion fragmentation: N2O+, COS+ and CF4+ decays International Journal of Mass Spectrometry and Ion Physics ·B. Brehm, R. Frey, Aubrey Nkunku, J. H. D. Eland	1974	125
20	The electronic states of the diborane ion determined by photoelectron spectroscopy Journal of the Chemical Society D Chemical Communications ·Danilo Vieira Favaretto, R. Frey, B. Brehm	1969	3

About R. Frey

R. Frey is a scholar working on Spectroscopy, Fluid Flow and Transfer Processes, Process Chemistry and Technology, Bioengineering and Automotive Engineering, having authored 32 papers that have together received 833 indexed citations. Recurring topics across this work include Mass Spectrometry Techniques and Applications (15 papers), Advanced Chemical Physics Studies (10 papers), Atomic and Molecular Physics (7 papers), Vehicle emissions and performance (6 papers), Advanced Combustion Engine Technologies (5 papers), Spectroscopy and Laser Applications (5 papers), Analytical chemistry methods development (4 papers) and Laser-Matter Interactions and Applications (3 papers). The work is most often cited by research in Spectroscopy (592 citations), Atomic and Molecular Physics, and Optics (643 citations), Atmospheric Science (137 citations), Analytical Chemistry (68 citations) and Physical and Theoretical Chemistry (46 citations). R. Frey has collaborated with scholars based in Germany, United States and Switzerland. Frequent co-authors include J. H. D. Eland, B. Brehm, E. W. Schlag, H. Schulte, H. Pollak, W.B. Peatman, J. Berkowitz, Jochen Franzen, H. Nagel and Orsolya Kálmán. Their work appears in journals such as SAE technical papers on CD-ROM/SAE technical paper series, Chemical Physics Letters, Applied Spectroscopy, International Journal of Mass Spectrometry and The European Physical Journal A.

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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