J. A. Ryan

1.1k citations

17 papers · 209 indexed · h-index 10

Impact in

Instrumentation
Atomic and Molecular Physics, and Optics
- Advanced Chemical Physics Studies
- Spectroscopy and Quantum Chemical Studies

Papers in

Radiation 4
- Radiation Detection and Scintillator Technologies 3
Astronomy and Astrophysics 4
- Gamma-ray bursts and supernovae 3

Co-authors: Jerry L. Whitten B. L. Lutz Maurice G. O’Sullivan B. O'Neill A. Devaquet W.A. Lane C. Lyden H. A. Kuska
Journals: Chemical Physics Letters (2 papers)IEEE Transactions on Nuclear Science (1 paper)Journal of Geophysical Research Atmospheres (1 paper)The Astrophysical Journal (1 paper)Inorganic Chemistry (1 paper)
Partner nations: Ireland United States France

In The Last Decade

J. A. Ryan

17 papers receiving 197 citations

Peers

Countries citing papers authored by J. A. Ryan

Since Specialization

Citations

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

Fields of papers citing papers by J. A. Ryan

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by J. A. Ryan. 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 J. A. Ryan. The network helps show where J. A. Ryan may publish in the future.

Co-authorship network

The 25 scholars most cited alongside J. A. Ryan, 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 J. A. Ryan Line = papers co-authored together J. A. Ryan links everyone, so they are left out of the graph.

All Works

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17 of 17 papers shown

#	Work
1	Pulse processing routines for neutron time-of-flight data Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment ·P. Žugec, C. Weiß, C. Guerrero, F. Gunsing, V. Vlachoudis, M. Sabaté-Gilarte, A. Stamatopoulos, Thomas Wright, J. Lerendegui-Marco, F. Mingrone, J. A. Ryan, Berna Karakoç, A. Tsinganis, M. Barbagallo	2016	9
2	Magnetic field sensitive amplifier with temperature compensation J. A. Ryan, Kateřina Pulkrábková, M. Buckley, Michael P. Flynn	2003	4
3	Mixed-signal automatic test program generation Jens Laursen, C. Lyden, J. A. Ryan, Irina ZHuravlyeva, Niall Murphy, Luisa Squintani	2002	2
4	A single shot sigma delta analog to digital converter for multiplexed applications C. Lyden, J. A. Ryan, Randi Ferdiansah, Amir Mehdi Badi, Kristopher Daratha	2002	12
5	The Cdg Spectrum from 0.8-30 MeV Measured with COMPTEL Based on a Physical Model of the Instrumental Background G. Weidenspointner, M. Varendorff, K. Bennett, H. Bloemen, W. Hermsen, S. Cheenu Kappadath, G. Lichti, J. A. Ryan, V. Schönfelder	1999	2
6	[sup 26]Al and the COMPTEL [sup 60]Fe data AIP conference proceedings ·R. Diehl, Arthur B. Gelvin, U. Oberlack, H. Bloemen, R. Georgii, A. F. Iyudin, J. Knödlseder, G. Lichti, W. Hermsen, H Douglas Morris, J. A. Ryan, V. Schönfelder, A. W. Strong, P. von Ballmoos, Jesús Casado-Rodrigo	1997	2
7	COMPTEL search for ^22^Na line emission from recent novae. CERN Document Server (European Organization for Nuclear Research) ·A. F. Iyudin, K. Bennett, H. Bloemen, R. Diehl, W. Hermsen, G. Lichti, Daniel Morris, J. A. Ryan, V. Schöenfelder, H. Steinle, A. W. Strong, M. Varendorff, Youssef Daafi	1995	2
8	COMPTEL observations of the Orion complex : evidence for cosmic-ray induced gamma-ray lines. H. Bloemen, R. Wijnands, K. Bennett, R. Diehl, W. Hermsen, G. Lichti, D. Morris, J. A. Ryan, V. Schönfelder, A. W. Strong, B. N. Swanenburg, C. de Vries, Christoph Winkler	1994	16
9	Photon-counting arrays for spatially varying low-light-level signals Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE ·A. Mathewson, J. Alderman, J. A. Ryan, Lan‐Pin Kuo, G. T. Wrixon	1993	9
10	A Cmos Magnetic-field-controlled Duty -cycle Oscillator Sensor Michael P. Flynn, M. Buckley, J. A. Ryan	1992	4
11	Development of the radiation sensitivity of PMOS dosimeters IEEE Transactions on Nuclear Science ·Т.В. Генералова, Maurice G. O’Sullivan, J. A. Ryan, B. O'Neill, W.A. Lane	1992	43
12	Temperature compensation of PMOS dosimeters ESA Special Publication ·Maurice G. O’Sullivan, Т.В. Генералова, J. A. Ryan, B. O'Neill, Sabrina Ramdane	1991	13
13	Use of electron spin resonance data to assist in the assignment of vanadyl optical transitions Inorganic Chemistry ·H. A. Kuska, J. A. Ryan	1976	4
14	Silicon carbide - Its ground state and predicted spectrum The Astrophysical Journal ·B. L. Lutz, J. A. Ryan	1974	24
15	Unsymmetrical 1B2 (ππ∗) state of ozone Chemical Physics Letters ·A. Devaquet, J. A. Ryan	1973	19
16	A valence state description of the ethylene V state by configuration interaction theory Chemical Physics Letters ·J. A. Ryan, Jerry L. Whitten	1972	33
17	The case against thermal fracturing at the lunar surface Journal of Geophysical Research Atmospheres ·J. A. Ryan	1962	11

About J. A. Ryan

J. A. Ryan is a scholar working on Radiation, Astronomy and Astrophysics, Nuclear and High Energy Physics, Physical and Theoretical Chemistry and Atomic and Molecular Physics, and Optics, having authored 17 papers that have together received 209 indexed citations. Recurring topics across this work include Radiation Detection and Scintillator Technologies (3 papers), Gamma-ray bursts and supernovae (3 papers), Advanced Chemical Physics Studies (3 papers), CCD and CMOS Imaging Sensors (2 papers), Particle Detector Development and Performance (2 papers), Spectroscopy and Quantum Chemical Studies (2 papers), Atomic and Subatomic Physics Research (2 papers) and Sensor Technology and Measurement Systems (2 papers). The work is most often cited by research in Instrumentation (9 citations), Atomic and Molecular Physics, and Optics (74 citations), Physical and Theoretical Chemistry (20 citations), Radiation (18 citations) and Astronomy and Astrophysics (32 citations). J. A. Ryan has collaborated with scholars based in Ireland, United States and France. Frequent co-authors include Jerry L. Whitten, B. L. Lutz, Maurice G. O’Sullivan, B. O'Neill, A. Devaquet, W.A. Lane, C. Lyden, H. A. Kuska, M. Buckley and G. Lichti. Their work appears in journals such as Chemical Physics Letters, IEEE Transactions on Nuclear Science, Journal of Geophysical Research Atmospheres, The Astrophysical Journal and Inorganic Chemistry.

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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