微小重力環境に適合する汎用冷却システムの開発

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  • Development of ADR System for Microgravity Mission
  • ビショウ ジュウリョク カンキョウ ニ テキゴウ スル ハンヨウ レイキャク システム ノ カイハツ

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Adiabatic Demagneti ation Refrigeration (ADR) does not use working fluids contrary to conventional refrigerators that make use of the fluid density difference, which leads to superiority of the ADR under the weak gravity condition. In this study, we will develop a new continuous ADR system to provide the cooling temperatures between 0.06 K and 4 K. The system will consists of multi-stage of magnetic materials and magnets cascaded with heat switches for each tempera- ture range. The ADR cooler is planned to test to confirm the ability of the continuous ADR system under the milli-gravi- ty condition in airborne flight experiments. The ADR development will be accomplished through the collaborative works with NASA/SGFC and AXA/ISAS.

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