Short-period cyclic loading system for in situ X-ray observation of anelastic properties at high pressure

Takashi Yoshino, Daisuke Yamazaki, Yoshinori Tange, Yuji Higo

Research output: Contribution to journalArticle

Abstract

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.

Original languageEnglish
Article number105106
JournalReview of Scientific Instruments
Volume87
Issue number10
DOIs
Publication statusPublished - Oct 1 2016

ASJC Scopus subject areas

  • Instrumentation

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