S. Umehara

1.1k total citations
45 papers, 250 citations indexed

About

S. Umehara is a scholar working on Nuclear and High Energy Physics, Atomic and Molecular Physics, and Optics and Radiation. According to data from OpenAlex, S. Umehara has authored 45 papers receiving a total of 250 indexed citations (citations by other indexed papers that have themselves been cited), including 32 papers in Nuclear and High Energy Physics, 10 papers in Atomic and Molecular Physics, and Optics and 9 papers in Radiation. Recurrent topics in S. Umehara's work include Neutrino Physics Research (23 papers), Particle physics theoretical and experimental studies (22 papers) and Astrophysics and Cosmic Phenomena (11 papers). S. Umehara is often cited by papers focused on Neutrino Physics Research (23 papers), Particle physics theoretical and experimental studies (22 papers) and Astrophysics and Cosmic Phenomena (11 papers). S. Umehara collaborates with scholars based in Japan, United States and Belgium. S. Umehara's co-authors include Izumi Ogawa, R. Hazama, S. Yoshida, Kyohei Mukaida, K. Matsuoka, T. Kishimoto, Masao Nomura, K. Matsuoka, Yasuhiko Fujii and K. Fushimi and has published in prestigious journals such as Journal of Chromatography A, Nuclear Physics A and Journal of the Physical Society of Japan.

In The Last Decade

S. Umehara

40 papers receiving 241 citations

Peers

S. Umehara

NHEP

AMPO

RADIA

IME

James Larson United States

L.K. Turchanovich Russia

H. Kaspar Switzerland

M. Zendel Germany

A. K. Skasyrskaya Russia

Kazutaka Ozeki Japan

A. J. Mitchell United States

И. Р. Барабанов Russia

M. Sakama Japan

P. Coyle France

James Larson United States

S. Umehara

199 ×1.1

NHEP

117 ×2.7

AMPO

99 ×2.4

RADIA

11 ×0.4

IME

6 ×0.3

Citations per year, relative to S. Umehara S. Umehara (= 1×) peers James Larson

Countries citing papers authored by S. Umehara

Since Specialization

Citations

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

Fields of papers citing papers by S. Umehara

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of S. Umehara

This figure shows the co-authorship network connecting the top 25 collaborators of S. Umehara. A scholar is included among the top collaborators of S. Umehara 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 S. Umehara. S. Umehara is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Umehara, S. & H. Ejiri. (2024). Neutrino Masses and Right-Handed Weak Currents Studied by Neutrino-Less ββ-Decay Detectors. Universe. 10(6). 247–247.

Iyoki, Kenta, et al.. (2024). Measurement of radon emanation and impurity adsorption from argon gas using ultralow radioactive zeolite. Journal of Instrumentation. 19(2). P02004–P02004. 3 indexed citations

Ogawa, Izumi, Jun Nakajima, Shigeki Tokita, et al.. (2023). Laser isotope separation to study for the neutrino-less double beta decay of ⁴⁸Ca. Journal of Physics Conference Series. 2586(1). 12136–12136. 2 indexed citations

Chernyak, D., H. Ejiri, K. Hata, et al.. (2020). Purification of the NaI(Tl) crystal for dark matter search project PICOLON. Journal of Physics Conference Series. 1468(1). 12054–12054. 1 indexed citations

Nakano, Takeshi, M. Fukuda, H. Kanda, et al.. (2019). The Research Center for Nuclear Physics at Osaka University. Nuclear Physics News. 29(4). 4–9. 1 indexed citations

Umehara, S., et al.. (2015). Separation of calcium-48 isotope by crown ether chromatography using ethanol/hydrochloric acid mixed solvent. Journal of Chromatography A. 1415. 67–72. 10 indexed citations

Ogawa, Izumi, T. Kishimoto, S. Umehara, et al.. (2012). Study of⁴⁸Ca double beta decay by CANDLES. Journal of Physics Conference Series. 375(4). 42018–42018. 4 indexed citations

Kwon, Gihyun, et al.. (2012). Application of review-SEM to high-resolution inspection for 3xnm nodes. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 8324. 83242P–83242P. 4 indexed citations

Ogawa, Izumi, T. Kishimoto, S. Umehara, et al.. (2011). Low radioactivity CaF[sub 2] scintillator crystals for CANDLES. AIP conference proceedings. 116–120.

10.

Ogawa, Izumi, T. Kishimoto, S. Umehara, et al.. (2011). Study of⁴⁸Ca Double Beta Decay by CANDLES. Journal of Physics Conference Series. 312(7). 72014–72014. 4 indexed citations

11.

Fujii, Yasuhiko, et al.. (2010). Mass dependence of calcium isotope fractionations in crown-ether resin chromatography. Isotopes in Environmental and Health Studies. 46(2). 233–241. 17 indexed citations

12.

Hirano, Yoshiyuki, T. Kishimoto, Izumi Ogawa, et al.. (2008). Study of double beta decay of⁴⁸Ca with CANDLES. Journal of Physics Conference Series. 120(5). 52053–52053. 4 indexed citations

13.

Umehara, S., T. Kishimoto, Izumi Ogawa, et al.. (2008). Double beta decay of⁴⁸Ca studied by CaF₂(Eu) scintillators. Journal of Physics Conference Series. 120(5). 52058–52058. 4 indexed citations

14.

Ogawa, Izumi, et al.. (2007). Double beta decay and CANDLES experiment. 51(2). 36–48. 2 indexed citations

15.

Nakamura, Hiroaki, H. Ejiri, K. Fushimi, et al.. (2006). MOON for spectroscopic studies of double beta decays and the present status of the MOON-1 prototype detector. Journal of Physics Conference Series. 39. 350–352. 9 indexed citations

16.

Umehara, S., T. Kishimoto, Izumi Ogawa, et al.. (2006). CANDLES for double beta decay of⁴⁸Ca. Journal of Physics Conference Series. 39. 356–358. 20 indexed citations

17.

Umehara, S., K. Fushimi, N. Koori, et al.. (2002). Determination of U-chain concentration in NaI(Tl) scintillator by delayed coincidence method. Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment. 490(1-2). 271–275. 5 indexed citations

18.

Fushimi, K., S. Umehara, N. Koori, et al.. (2002). Determination of Th-chain contamination in a high sensitivity detector. Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment. 491(1-2). 163–167. 2 indexed citations

19.

Yoshida, S., H. Ejiri, K. Fushimi, et al.. (2000). Search for WIMPs with the large NaI(Tl) scintillator of ELEGANT V. Nuclear Physics B - Proceedings Supplements. 87(1-3). 58–60. 9 indexed citations

20.

Miyamoto, S., Y. Yasuda, Masanobu Yamamoto, et al.. (1990). Two-stage ion diode experiments on induction adder. International Conference on High-Power Particle Beams. 190–198. 1 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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