日本地球惑星科学連合2015年大会

講演情報

インターナショナルセッション(ポスター発表)

セッション記号 S (固体地球科学) » S-CG 固体地球科学複合領域・一般

[S-CG14] Mixed volatiles in subduction zones; Physical and chemical properties and processes

2015年5月25日(月) 18:15 〜 19:30 コンベンションホール (2F)

コンビーナ:*Bjorn Mysen(Geophysical Laboratory, Carnegie Inst. Washington)、Eiji Ohtani(Department of Earth and Planetary Materials Science, Graduate School of Science, Tohoku University)、Dapeng Zhao(Department of Geophysics, Tohoku University)

18:15 〜 19:30

[SCG14-P01] GHz-P波バッファトロッド・トランスデュサーの開発とDACへの応用

*米田 明1 (1.岡山大学地球研)

キーワード:GHz音速法, ダイヤモンドアンビルセル, Pバッファロッド

GHz ultrasonic velocity measurements was developed for future diamond anvil cell experiments. First of all, ZnO transducer was coated on the bottom surface of diamond anvil by a sputtering machine. Simulation tests were conducted by using a single diamond anvil; expected accuracy of ~0.1 % was confirmed for ~50 ns travel time of ~160 micron meter thickness glass plate. However it was turned out that the direct diamond ZnO transducer technique has potential difficulty for actual DAC experiments. i.e., durability of ZnO layer. In order to solve the problem, P wave buffer rod made of sapphire single crystal was developed newly. The usage of the P wave buffer rod is now under examining.