To determine the anelastic properties of materials of the Earth’s interior, a short-period cyclic loading system was installed for in situ X-ray radiographic observation under high pressure to the multi-anvil deformation DIA press at the bending magnet beam line BL04B1 at SPring-8. The hydraulic system equipped with a piston controlled by a solenoid was designed so as to enable producing smooth sinusoidal stress in a wide range of oscillation period from 0.2 to 100 s and generating variable amplitudes. Time resolved X-ray radiography imaging of the sample and reference material provides their strain as a function of time during cyclic loading. A synchrotron X-ray radiation source allows us to resolve their strain variation with time even at the short period (<1 s). The minimum resolved strain is as small as 10−4, and the shortest oscillation period to detect small strain is 0.5 s. Preliminary experimental results exhibited that the new system can resolve attenuation factor Q−1 at upper mantle conditions. These results are in quantitative agreement with previously reported data obtained at lower pressures.
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October 2016
Research Article|
October 04 2016
Short-period cyclic loading system for in situ X-ray observation of anelastic properties at high pressure
Takashi Yoshino;
Takashi Yoshino
a)
1Institute for Planetary Materials,
Okayama University
, Misasa, Tottori 682-0193, Japan
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Daisuke Yamazaki;
Daisuke Yamazaki
1Institute for Planetary Materials,
Okayama University
, Misasa, Tottori 682-0193, Japan
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Yoshinori Tange;
Yoshinori Tange
2
Japan Synchrotron Radiation Research Institute
, Sayo, Hyogo 678-5198, Japan
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Yuji Higo
Yuji Higo
2
Japan Synchrotron Radiation Research Institute
, Sayo, Hyogo 678-5198, Japan
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a)
Author to whom correspondence should be addressed. Electronic mail: tyoshino@misasa.okayama-u.ac.jp. Tel.: +81-858-43-3737. Fax: +81-858-43-2184.
Rev. Sci. Instrum. 87, 105106 (2016)
Article history
Received:
July 04 2016
Accepted:
September 06 2016
Citation
Takashi Yoshino, Daisuke Yamazaki, Yoshinori Tange, Yuji Higo; Short-period cyclic loading system for in situ X-ray observation of anelastic properties at high pressure. Rev. Sci. Instrum. 1 October 2016; 87 (10): 105106. https://doi.org/10.1063/1.4963747
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