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  • Welcom to UVSOR Synchrotron Facility

What New

   The present status of the UVSOR-III Synchrotron is marked by progress in lowering of the electron beam emittance and installation of beamline undulators. At present, all at the UVSOR Synchrotron Facility stand united in their dedication to further heightening and stabilization of the light-source brilliance and to molecular science application using 6 advanced undulator beamlines with increasing overseas users. A scanning transmission X-ray microscope (STXM) installed on BL4U is quite successfully in operation and an angle-, spin-, and space-resolved photoelectron spectroscopy on BL5U is now under construction.

UVSOR Facility

   Light is called with various names such as infrared, visible, ultraviolet, vacuum-ultraviolet and X-ray, depending on its wavelength. A synchrotron light source is capable of producing light in the ultra-wide wavelength range from infrared to X-rays. Synchrotron light radiated by high energy electrons traveling in a strong magnetic field is intense and highly collimated. It is widely used in various research fields including molecular science. In IMS, a synchrotron light source has been operational since 1983. The Synchrotron-related technology has been developed, hence lots of unique Synchrotron facilities were constructed in the world. The UVSOR Synchrotron Facility developed successfully the continuous upgrade of the light source and beamlines from UVSOR-I to UVSOR-II (~2002) and from UVSOR-II to UVSOR-III (~2012). After several upgrades, it is still brightest in the world among low energy synchrotron light sources. The UVSOR-III Synchrotron has an electron storage ring of 53 m-circumference and experimental stations on 6 undulator and 8 dipole beamlines. This facility is used by many researchers not only from our country but also from foreign countries.

UVSOR Facility Image 01

Three-dimensional angle-resolved photoemission (3D-ARPES) apparatus.

UVSOR Facility Image 01

Fermi surface of a solid (CeSb) derived by 3D-ARPES apparatus.

Recent Research Papers

T. Kanomata, T. Awano and T. Ito
"Optical Properties of the Antiferromagnetic Heusler Alloy Ru2CrGe " , Solid State Commun, 340 (2021) 114525.
J. Rodriguez, T. Ohigashi, C. Lee, M. Tsai, C. Yang, C. Wang, C. Chen, W. Pong, H. Chiu and C. Chuang
"Modulating chemical composition and work function of suspended reduced graphene oxide membranes through electrochemical reduction" , Carbon 185, (2021) 410
H. Wang, J. Chiou, K. Chen, A. R. Shelke, C. Dong, C. Lai, P. Yeh, C. Du, C. Lai, K. Asokan, S. Hsieh, H. Shiu, C. Pao, H. Tsai, J. Yang, J. Wu, T. Ohigashi and W. Pong
" "Role of Interfacial Defects in Photoelectrochemical Properties of BiVO4 Coated on ZnO Nanodendrites: X‑ray Spectroscopic and Microscopic Investigation" ", ACS Appl. Mater. Interfaces 13, (2021) 41524
M. Yoshida, M. Miyahara, H. Suga, A. Yamaguchi, N. Tomioka, T. Sakai, H. Ohfuji, F. Maeda, I. Ohira, E. Ohtani, S. Kamada, T. Ohigashi, Y. Inagaki, Y. Kodama and N. Hirao
" Elucidation of impact event recorded in the lherzolitic shergottite NWA 7397 ", Meteoritics & Planetary Science (2021) 1.
S. Tsuru, B. Sharma, M. Nagasaka and C. Hättig
" Solvent Effects in the Ultraviolet and X-ray Absorption Spectra of Pyridazine in Aqueous Solution ", J. Phys. Chem. A, 125 (2021) 7198.
Y.Kebukawa, M.E.Zolensky, C. A. Goodrich, M.Ito, N.O.Ogawa, Y.Takano, N.Ohkouchi, K.Kiryu, M.Igisu, T.Shibuya, M.A.Marcus, T.Ohigashi, J.Martinez, Y.Kodama, M.H.Shaddad and P.Jenniskens
" Organic matter in carbonaceous chondrite lithologies of Almahata Sitta:Incorporation of previously unsampled carbonaceous chondrite lithologies into ureilitic regolith ", Meteoritics & Planetary Science 56, Nr 7, 1311–1327 (2021)
D. Céolin, H. Yuzawa, T. Saisopa, K. Klaiphet, J. Borsup, P. Songsiriritthigul and N. Kosugi
" Substituent effects in aqueous solutions of carboxylate salts studied by x-ray absorption spectroscopy at the oxygen K-edge ", J. Chem. Phys. 155, 014306 (2021)
S. Yamasuso and T. Kawai
" Electronic states and relaxation dynamics of Au─ centers in RbCl crystals ", J. Lumin. 236 (2021) 118094.
Y. Nakayama, K. Sudo, N. Ohashi, S. Kera and Y. Watanabe
" Interface electronic structure and valence band dispersion of bis(1,2,5-thiadiazolo)-p-quinobis(1,3-dithiole) on polycrystalline Au electrodes ", Electron. Struct. 3 (2021) 024006
S. Makita, H. Matsuda, Y. Okano, T. Yano, E. Nakamura, Y. Hasegawa, S. Kera, S. Suga and F. Matsui
" Contrast Inversion of Photoelectron Spectro-microscopy Image" , e-J. Surf. Sci. Nanotechnol., 19 (2021) 42-47.
O. Endo, F. Matsui, W. J. Chun, M. Nakamura, K. Amemiya and H. Ozaki
" Nanographene growth from benzene on Pt(111)" , Surf.Sci., 711 (2021) 121874.
H. Suga, K. Suzuki, T. Usui, A. Yamaguchi, O. Sekizawa, K. Nitta, Y. Takeichi, T. Ohigashi and Y. Takahashi
" A New Constraint on the Physicochemical Condition of Mars Surface during the Amazonian Epoch Based on Chemical Speciation for Secondary Minerals in Martian Nakhlites" , Minerals, 11 (2021) 514.
G. Germer, T. Ohigashi, H. Yuzawa, N. Kosugi, R. Flesch, F. Rancan, A. Vogt, and E. Rühl
" Improved Skin Permeability after Topical Treatment with Serine Protease: Probing the Penetration of Rapamycin by Scanning Transmission X‑ray Microscopy ", ACS Omega 6 (2021) 12213.
M. Nagasaka and N. Kosugi
" Soft X-ray Absorption Spectroscopy for Observing Element-specific Intermolecular Interaction in Solution Chemistry ", Chem. Lett. 50 (2021) 956.
K. Ali, H. Zen, H. Ohgaki, T. Kii, T. Hayakawa, T. Shizuma, H. Toyokawa, M. Fujimoto, Y. Taira and M. Katoh
"Three-Dimensional Nondestructive Isotope-Selective Tomographic Imaging of 208Pb Distribution via Nuclear Resonance Fluorescence ", Applied Sciences, 11 (2021) 3415.
E. Salehi and M. Katoh
"Spatial structure and angular momentum of electro-magnetic wave radiated from a relativistic electron moving on a spiral orbit ", J. Adv. Simulat. Sci Eng., 8 (2021) 87.
Y. Hikosaka, H. Iwayama and T. Kaneyasu
"Zeeman Quantum Beats of Helium Rydberg States Excited by Synchrotron Radiation ", Journal of Synchrotron Radiation, 27, (2020) 675.
J. Okabayashi, S. Li, S. Sakai, Y. Kobayashi, T. Mitsui, K. Tanaka, Y. Miura and S. Mitani
"Perpendicular magnetic anisotropy at the Fe/Au(111) interface studied by Mössbauer, x-ray absorption, and photoemission spectroscopies ", Phys. Rev. B 103, (2021)104435.
T. Kaneyasu, Y. Hikosaka, M. Fujimoto, H. Iwayama and M. Katoh
"Electron Wave Packet Interference in Atomic Inner-Shell Excitation", Phys. Rev. Lett. 126 (2021) 113202.
Y. Higaki, K. Kamitani, T. Ohigashi, T.Hayakawa, and A. Takahara
"Exploring the Mesoscopic Morphology in Mussel Adhesive Proteins by Soft X‐ray Spectromicroscopy",Biomacromolecules 22(2021)1256.
H. Matsuhashi, A. Iwamoto, M. Sasaki, K. Yoshida and H. Aritani
" Synthesis of SrO–Al2O3 Solid Base Catalysts from Strontium Hydroxide and Aluminum Alkoxide by a Solid-liquid Interface Reaction", J. Jpn. Petrol. Inst., 64 (2021) 103.
T. Tsukamoto, A. Kuzume, M. Nagasaka, T. Kambe and K. Yamamoto
" Quantum Materials Exploration by Sequential Screening Technique of Heteroatomicity ",J. Am. Chem. Soc., 142 (2020) 19078.
G. Michailoudi, J. J. Lin, H. Yuzawa, M. Nagasaka, M. Huttula, N. Kosugi, T. Kurtén, M. Patanen and N. L. Prisle
"Aqueous-Phase Behavior of Glyoxal and Methylglyoxal Observed with Carbon and Oxygen K-edge X-ray Absorption Spectroscopy",Atmos. Chem. Phys., 21 (2021) 2881.
H. Wang, M. He, Y. Li, H. Zhang, D. Yang, M. Nagasaka, Z. Lv, Z. Guan, Y. Cao, F. Gong, Z. Zhou, J. Zhu, S. Samanta, A. D. Chowdhury and A. Lei
"Electrochemical Oxidation Enables Regioselective and Scalable α-C(sp3)-H Acyloxylation of Sulfides",J. Am. Chem. Soc., 143 (2021) 3628.
Y. Sakamoto, T. Hirahara, H. Miyazaki, S. Kimura, and S. Hasegawa
"Spectroscopic Evidence of a Topological Quantum Phase Transition in Ultrathin Bi2Se3 Films",Phys. Rev. B 81, (2010) 165432.
T. Hirahara, S. V. Eremeev,‡, T. Shirasawa, Y. Okuyama, T. Kubo, R. Nakanishi, R. Akiyama, A. Takayama, T. Hajiri, S. Ideta, M. Matsunami, K. Sumida, K. Miyamoto, Y. Takagi, K. Tanaka, T. Okuda, T. Yokoyama, S. Kimura, S. Hasegawa, and E. V. Chulkov
"Large-Gap Magnetic Topological Heterostructure Formed by Subsurface Incorporation of a Ferromagnetic Layer",Nano Letters, 17 (2017) 3493.
M. Kitaura, K. Kamada, T. Ina, H. Yamane, M. Ishizaki, S. Watanabe, J. Azuma, I. Yamamoto, A. Ohnishi and T. Usuki
"Structural analyses of Gd3(Al,Ga)5O12 garnet solid solutions via X-ray and UV absorption spectroscopy experiments for Gd atoms" ,J. Alloys Compd. 867 (2021) 159055.
M. Kitaura, Y. Taira, M. Fujimoto, M. Katoh and H. Zen
"Visualization of vacancy-type defect complexes in garnet scintillator crystals by ultrashort gamma-ray induced positron annihilation lifetime spectroscopy (in Japanese)" ,Journal of JSSRR, 34 (2021) 37-44.
H. Fukushima, D. Nakauchi, M. Koshimizu, N. Kawaguchi and T. Yanagida
"Synthesis and Scintillation Properties of Ce-doped CaZrO3 Single Crystals" ,Jpn. J. Appl. Phys. 59 (2020) SCCB15.
T. Ogawa, D. Nakauchi, M. Koshimizu, N. Kawaguchi and T. Yanagida
"Scintillation Properties of Pr-doped Ca2Al2SiO7 single crystals" ,Opt. Mater. 100 (2020) 109565.
K. Takahashi, M. Arai, M. Koshimizu, Y. Fujimoto, T. Yanagida and K. Asai
Luminescence Characteristics of Cs2BaCl4" ,Jpn. J. Appl. Phys. 59 (2020) 032003.
K. Takahashi, M. Arai, M. Koshimizu, Y. Fujimoto, T. Yanagida and K. Asai
"Luminescence and scintillation properties of Cs2ZnCl4 and Cs3ZnCl5" ,Jpn. J. Appl. Phys. 59 (2020) 072002.
br>H. Fukushima, D. Nakauchi, T. Kato, M. Koshimizu, N. Kawaguchi and T. Yanagida
"Photoluminescence and Scintillation Properties of Ce-doped SrLu2O4 Single Crystals" ,Solid State Sci. 110 (2020) 106471.
S. Tsunekawa, F. Yamamoto, K. Wang, M. Nagasaka, H. Yuzawa, S. Takakusagi, H. Kondoh, K. Asakura, T. Kawai and M. Yoshida
"Operando Observations of a Manganese Oxide Electrocatalyst for Water Oxidation Using Hard/Tender/Soft X-ray Absorption Spectroscopy" , J. Phys. Chem. C, 124 (2020) 23611.
H. Matsuda and F. Matsui
"90°-deflection Imaging Electron Analyzer for Measuring Wide 2D Angular Distribution and Perpendicular Spin Texture ", J. Electron Spectrosc. Relat. Phenom. 245 (2020) 147001.
Y. Kurashima , S. Kurosawa, R. Murakami, A. Yamaji, S. Ishikawa, J. Pejchal, K. Kamada, M. Yoshino, S. Toyoda, H. Sato, Y. Yokota, Y. Ohashi, and A. Yoshikaw
"Novel Method of Search for Transparent Optical Materials with Extremely High Melting Point ", Cryst. Growth Des. 21(1) (2021) 572–578
A. Fleurence, Y. Awatani, C. Huet, F. B. Wiggers, S. M. Wallace, T. Yonezawa, and Y. Yamada-Takamura
"Band Engineering in an Epitaxial Two-Dimensional Honeycomb Si6-xGex Alloy ", Phys. Rev. Materials 5(2021) L011001.
A. Fleurence, C.-C. Lee, R. Friedlein, Y. Fukaya, S. Yoshimoto, K. Mukai, H. Yamane, N. Kosugi, J. Yoshinobu, T. Ozaki and Y. Yamada-Takamura
"Emergence of Nearly Flat Bands Through a Kagome Lattice Embedded in an Epitaxial Two-Dimensional Ge Layer with a Bitriangular Structure ", Phys. Rev. B 102 (2020) 201102(R).
K. Iwasawa and Koji K. Okudaira
"Effect of Chemical interaction at Modification Layer/substrate Interface on Molecular Orientation of Dinaphtho[2,3-b:2′,3′-f]thieno[3,2-b]thiophene Thin Films ", Jpn. J. Appl. Phys., 59 (2020) 091004.
T. Ohigashi , H. Yuzawa , and N. Kosugi
"A low-pass filtering Fresnel zone plate for soft x-ray microscopic analysis down to the lithium K-edge region ", Rev. Sci. Instrum., 91 (2020) 103110
T. Hirahara, M. M. Otrokov, T. T. Sasaki, K. Sumida, Y. Tomohiro, S. Kusaka, Y. Okuyama, S. Ichinokura, M. Kobayashi, Y. Takeda, K. Amemiya, T. Shirasawa, S. Ideta, K. Miyamoto, K. Tanaka, S. Kuroda, T. Okuda, K. Hono, S. V. Eremeev, and E. V. Chulkov
"Fabrication of a Novel Magnetic Topological Heterostructure and Temperature Evolution of its Massive Dirac Cone ", Nature Communications 11(2020)4821.
O. Yagi, T. Kawai and K. Mizoguchi
"Formation and migration of Vk centers from localized excitons in NaCl:I- and NaCl:I- ,Tl+ crystals ", Journal of Liminescence 226 (2020) 117359
Y. Taira, M. Fujimoto, S. Ri, M. Hosaka and M. Katoh
"Measurement of the phase structure of elliptically polarized undulator radiation ", New J. Phys. 22 (2020) 093061.
M. Ito , N. Tomioka, K. Uesugi, M. Uesugi, Y. Kodama, I. Sakurai, I. Okada, T. Ohigashi, H. Yuzawa, A. Yamaguchi, N. Imae, Y. Karouji, N. Shirai,T. Yada and M. Abe
"The universal sample holders of microanalytical instruments of FIB,TEM, NanoSIMS, and STXM‑NEXAFS for the coordinated analysis of extraterrestrial materials ", Earth, Planets and Space, 72(2020) 133
T. Kaneyasu, Y. Hikosaka, M. Fujimoto, H. Iwayama, and M. Katoh
"Polarization control in a crossed undulator without a monochromator ", New J. Phys. 22 (2020) 083062.
T. Horiai, S. Kurosawa, R. Murakami, Y. Shoji, J. Pejchal, M. Yoshino, A. Yamaji, H. Sato, Y. Ohashi, K. Kamada, Y. Yokota and A. Yoshikawa
"Crystal Growth and Optical Properties of a Ce2Si2O7 Single Crystal ", Optical Materials, 109 (2020) 110210.
S. Kodama, S. Kurosawa, M. Ohno, A. Yamaji, M. Yoshino, J. Pejchal, R. Král, Y. Ohashi, K. Kamada, Y. Yokota, M. Nikl and Akira Yoshikawa
"Development of a novel red-emitting cesium hafnium iodide scintillator ", Radiation Measurements, 124 (2019) 54.
T. Saisopa, K. Klaiphet, P. Songsiriritthigul, W. Pokapanich, S. Tangsukworakhun, C. Songsiriritthigul, C. Saiyasombat, Y. Rattanachai, H. Yuzawa, N. Kosugi and D. Ceolin
"Investigation of solvated calcium dication structure in pure water, methanol, and ethanol solutions by means of K and L2,3-edges X-ray absorption spectroscopy ", J. Electron Spectrosc. Relat. Phenom. 244 (2020) 146984.
K. Ali, H. Ohgaki, H. Zen, T. Kii, T. Hayakawa, T. Shizuma, H. Toyokawa, Y. Taira, V. Iancu, G. Turturica, C. A. Ur, M. Fujimoto, and M. Katoh
"Selective Isotope CT Imaging Based on Nuclear Resonance Fluorescence Transmission Method ", IEEE Transactions on Nuclear Science, 67 (2020) 1976.
M. Nagasaka and N. Kosugi
"Soft X-ray Liquid Absorption Spectroscopy in Transmission Mode Realized by Precise Thickness Control ", Butsuri, 75(8) (2020) 496.
M. Nagasaka and H. Iwayama
"Photoelectron Based Soft X-ray Detector for Removing High Order X Rays ", Rev. Sci. Instrum., 91 (2020) 083103.
K. Fujimori, M. Kitaura, Y. Taira, M. Fujimoto, H. Zen, S. Watanabe, K. Kamada, Y. Okano, M. Katoh, M. Hosaka, J. Yamazaki, T. Hirade, Y. Kobayashi and A. Ohnishi
"Visualizing cation vacancies in Ce:Gd3Al2Ga3O12scintillators by gamma-ray-induced positron annihilation lifetime spectroscopy ", Appl. Phys. Express 13, (2020) 085505.
T. Mansikkala, M. Patanen, A. Kärkönen, R. Korpinen, A. Pranovich, T. Ohigashi, S. Swaraj, J. Seitsonen, J. Ruokolainen, M. Huttula, P. Saranpää, and R. Piispanen
"Lignans in Knotwood of Norway Spruce: Localisation with Soft X-ray Microscopy and Scanning Transmission Electron Microscopy with Energy Dispersive X-ray Spectroscopy ", Molecules 25, (2020) 2997.
M. Nagasaka
"Soft X-ray absorption spectroscopy in the low-energy region explored using an argon gas window ", J. Synchrotron Rad., 27 (2020) 959.
L. Guo, H. Yamaguchi, M. Yamamoto, F. Matsui, G. Wang, F. Liu, P. Yang, E. R. Batista, N. A. Moody, Y. Takashima, and M. Katoh
"Graphene as Reusable Substrate for Bialkali Photocathodes ",Appl. Phys. Lett. 116, (2020) 251903.
F. Matsui, S. Makita, H. Matsuda, T. Yano, E. Nakamura, K. Tanaka, S. Suga, and S. Kera
"Photoelectron Momentum Microscope at BL6U of UVSOR-III Synchrotron ",Jpn. J. Appl. Phys. 59, (2020) 067001.
H. Spiridigliozzi, A. Pille, F. Schoenstein, L. Museur, E. Feldbach, H. Mändar, M. Kitaura and A. Kanaev
"Effects of Ta doping and irradiation with He+ ions on photoluminescence of MgAl2O4spinel ceramics ",J. Euro. Ceram. Soc. 40, (2020) 3215-3221.

List of Research Papers