Kazutake Köhra

1.7k total citations
56 papers, 1.0k citations indexed

About

Kazutake Köhra is a scholar working on Materials Chemistry, Radiation and Condensed Matter Physics. According to data from OpenAlex, Kazutake Köhra has authored 56 papers receiving a total of 1.0k indexed citations (citations by other indexed papers that have themselves been cited), including 26 papers in Materials Chemistry, 25 papers in Radiation and 23 papers in Condensed Matter Physics. Recurrent topics in Kazutake Köhra's work include Crystallography and Radiation Phenomena (23 papers), Advanced X-ray Imaging Techniques (21 papers) and X-ray Diffraction in Crystallography (20 papers). Kazutake Köhra is often cited by papers focused on Crystallography and Radiation Phenomena (23 papers), Advanced X-ray Imaging Techniques (21 papers) and X-ray Diffraction in Crystallography (20 papers). Kazutake Köhra collaborates with scholars based in Japan, Czechia and Poland. Kazutake Köhra's co-authors include Seishi Kikuta, Seigô Kishino, Naohisa Inoue, Tadashi Matsushita, Kazumi Wada, Hiroo Hashizume, Atsuo Iida, Yoshimitsu Sugita, Yōichi Ishida and Hideki Ichinose and has published in prestigious journals such as Applied Physics Letters, Japanese Journal of Applied Physics and Review of Scientific Instruments.

In The Last Decade

Kazutake Köhra

56 papers receiving 933 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Kazutake Köhra Japan 18 430 401 307 286 266 56 1.0k
T. S. Noggle United States 20 429 1.0× 231 0.6× 165 0.5× 294 1.0× 247 0.9× 50 1.1k
C. Erginsoy United States 10 409 1.0× 331 0.8× 378 1.2× 201 0.7× 199 0.7× 13 1.0k
B. Pardo France 19 326 0.8× 267 0.7× 186 0.6× 298 1.0× 334 1.3× 82 1.0k
W. C. Marra United States 7 333 0.8× 183 0.5× 179 0.6× 157 0.5× 415 1.6× 9 863
Michi-hiko Mannami Japan 21 408 0.9× 457 1.1× 389 1.3× 344 1.2× 671 2.5× 131 1.6k
F. Biggs United States 8 320 0.7× 422 1.1× 150 0.5× 98 0.3× 302 1.1× 23 864
T. Fukamachi Japan 15 356 0.8× 349 0.9× 310 1.0× 186 0.7× 211 0.8× 110 809
R. Feder United States 21 359 0.8× 454 1.1× 104 0.3× 254 0.9× 371 1.4× 52 1.3k
K. Kohra Japan 15 257 0.6× 309 0.8× 233 0.8× 116 0.4× 165 0.6× 33 656
F. Pleiter Netherlands 17 482 1.1× 201 0.5× 230 0.7× 137 0.5× 371 1.4× 71 1.1k

Countries citing papers authored by Kazutake Köhra

Since Specialization
Citations

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

Fields of papers citing papers by Kazutake Köhra

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Kazutake Köhra

This figure shows the co-authorship network connecting the top 25 collaborators of Kazutake Köhra. A scholar is included among the top collaborators of Kazutake Köhra 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 Kazutake Köhra. Kazutake Köhra 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.
INAGAWA, Konosuke, et al.. (1989). Characterization of sliced multilayer zone plates for hard x rays (invited). Review of Scientific Instruments. 60(7). 1519–1523. 29 indexed citations
2.
INAGAWA, Konosuke, et al.. (1988). Fabrication and Characterization of Multilayer Zone Plate for Hard X-Rays. Japanese Journal of Applied Physics. 27(11A). L2131–L2131. 34 indexed citations
3.
Matsushita, Tadashi, et al.. (1981). A Dispersive Method of Measuring Extended X-Ray Absorption Fine Structure. Japanese Journal of Applied Physics. 20(5). L355–L355. 35 indexed citations
4.
Köhra, Kazutake & Masami Ando. (1980). Some fundamental studies on X-ray optical systems using dynamic diffraction for synchrotron radiation. Nuclear Instruments and Methods. 177(1). 117–126. 9 indexed citations
5.
Wada, Kazumi, et al.. (1979). Growth of Stacking Faults by Bardeen-Herring Mechanism in Czochralski Silicon. Japanese Journal of Applied Physics. 18(8). 1629–1630. 21 indexed citations
6.
Ito, Masahisa & Kazutake Köhra. (1979). X-Ray Observation during Polarization Reversal of Ferroelectric NaNO2. Japanese Journal of Applied Physics. 18(3). 527–531. 4 indexed citations
7.
Köhra, Kazutake, et al.. (1977). Study on the Process of Polarization Reversal in NaNO2by Time-Resolved X-Ray Diffraction. Japanese Journal of Applied Physics. 16(6). 1063–1064. 6 indexed citations
8.
Kikuta, Seishi, et al.. (1975). Studies on Dynamical Diffraction Phenomena of Neutrons Using Properties of Wave Fan. Journal of the Physical Society of Japan. 39(2). 471–478. 27 indexed citations
9.
Hashizume, Hiroo, et al.. (1972). High-Resolution Video Display of X-Ray Topographs with the Divergent Laue Method. Japanese Journal of Applied Physics. 11(10). 1514–1514. 5 indexed citations
10.
Hashizume, Hiroo & Kazutake Köhra. (1971). Some Studies on X-Ray Wave Fields in Elastically Distorted Single Crystals. I. Experimental Observations. Journal of the Physical Society of Japan. 31(1). 204–216. 7 indexed citations
11.
Kikuta, Seishi, et al.. (1971). An Observation of Neutron Pendellösung Fringes in a Wedge-Shaped Silicon Single Crystal. Journal of the Physical Society of Japan. 31(3). 954–955. 7 indexed citations
12.
Takano, Yukio, Kay Kohn, Seishi Kikuta, & Kazutake Köhra. (1970). X-Ray Studies of Dislocation Structures in a Sapphire Crystal. Japanese Journal of Applied Physics. 9(7). 847–847. 7 indexed citations
13.
Kikuta, Seishi & Kazutake Köhra. (1970). X-Ray Crystal Collimators Using Successive Asymmetric Diffractions and Their Applications to Measurements of Diffraction Curves. I. General Considerations on Collimators. Journal of the Physical Society of Japan. 29(5). 1322–1328. 55 indexed citations
14.
Köhra, Kazutake, et al.. (1968). A New Method of X-Ray Diffraction Topography Using Monochromatic Divergent Beams Made by a Curved Crystal. Japanese Journal of Applied Physics. 7(9). 982–982. 13 indexed citations
15.
Kikuta, Seishi, Kazutake Köhra, & Yoshimitsu Sugita. (1966). Measurements on Local Variations in Spacing and Orientation of the Lattice Plane of Silicon Single Crystals by X-Ray Double-Crystal Topography. Japanese Journal of Applied Physics. 5(11). 1047–1047. 62 indexed citations
16.
Kifune, T., Yoshitaka Kimura, M. Kobayashi, et al.. (1965). Coherent Bremsstrahlung from Si Single Crystal I. Experiment. Journal of the Physical Society of Japan. 20(3). 303–307. 17 indexed citations
17.
Kikuta, Seishi, et al.. (1965). Intensity Anomaly of Thermal and Compton Scattering of X-Rays Accompanying the Bragg Reflection. Journal of the Physical Society of Japan. 20(11). 2093–2093. 9 indexed citations
18.
Köhra, Kazutake, et al.. (1965). A Modification of the Scanning X-Ray Topographic Camera (Lang's Method). Advances in X-ray Analysis. 9. 14–22. 1 indexed citations
19.
Suzuki, Tetsuro, et al.. (1962). Loop Shaped Images Observed in X-Ray Diffraction Micrographs of Silicon Single Crystals. Journal of the Physical Society of Japan. 17(3). 583–584. 19 indexed citations
20.
Kuriyama, M., Kazutake Köhra, & Satio Takagi. (1957). Electron Diffraction Study on Polish Layers of Gold I. Journal of the Physical Society of Japan. 12(2). 151–156. 4 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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