Yoshihito TANAKA

@Research subject
Time-Resolved X-Ray Diffractometry of Organic Crystals by Using Synchrotron Radiations
@Speciality
Synchrotron Radiation Science
@Keywords
Brilliant synchrotron radiations, X-ray diffraction, X-ray optics, Time-resolved measurements
@Affiliation
Senior Researcher, Coherent X-Ray Optics Laboratory, RIKEN/Spring-8
@E-mail

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Research Report 2004

"Instrumentation for time-resolved x-ray measurements in picosecond to second time scale"


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"Structure of a photochromic crystal of 1,2-Bis(2-ethyl-5-phenyl-3-thienyl) perfluorocyclopentene. The structure of the crystal after the 400nm laser-irradiation is different from that in the blue phase in solution."


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"Experimental setup for time-resolved x-ray diffraction of photochromic crystals. Inset: Time chart of laser irradiation and the corresponding phases of a sample."


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"(i) Time-resolved rocking curve for hkl=060 of a diarylethene crystal (c),together with the color (b) and a time-chart of laser-irradiation (a). (ii) The x-ray diffraction intensity for single pulse irradiation. Response time of lattice expansion was found to be less than 0.5ms"


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