Japan Geoscience Union Meeting 2019

Presentation information

[J] Oral

U (Union ) » Union

[U-04] Capture the fast process in Earth and planetary science

Wed. May 29, 2019 3:30 PM - 5:00 PM 103 (1F)

convener:Takashi Yoshino(Institute for Planetary Materials, Okayama University), Yoshinori Tange(Japan Synchrotron Radiation Research Institute), Chairperson:Takashi Yoshino(Okayama University), Yoshio Kono(愛媛大学地球深部ダイナミクスセンター), Yoshinori Tange

4:30 PM - 4:45 PM

[U04-11] High speed measurement with synchrotron radiation X-ray.

★Invited Papers

*Kentaro Uesugi1 (1.Japan Synchrotron Radiation Research Institute)

Keywords:Synchrotron radiation X-ray, High speed measurement, X-ray imaging

X-ray is suitable for a probe for investigation of materials inside because of its deep penetration depth. For examples, X-ray transmission images show the internal structure of materials, the X-ray energy spectrums show the chemical characteristics and mineral phase of the materials can be obtained from X-ray diffraction.

Synchrotron radiation X-ray has continuum spectrum and is highly collimated basically. Therefore, the X-ray condition such as energy, beam size and intensity could be tuned for the purpose of the measurement and materials. A lot of insertion devices such as in-vacuum type undulator have been installed in a storage ring of third-generation synchrotron radiation facility to obtain ultra-high flux density (photons / sec / mm2) or brilliance (photons / sec / mm2 / (mrad)2 / 0.1%b.w.) X-ray at the sample. The highest brilliance of X-ray is about 109 time higher than the laboratory-based X-ray source. The high brilliant X-ray enable us to do ultra-high speed, spatial resolution and energy resolution measurement comparing to laboratory-based system.
At the SPring-8 the following experiments could be possible, X-ray imaging with more than 1kHz frame rate (liquid flow), X-ray diffraction with several kHz (insect flapping) and dispersive XAFS with 100Hz. These are essential technique for capturing various non-equilibrium or dynamic phenomena. At the conference, some examples of high speed measurement will be shown.