Exploration of water (fluid inclusion) in the early solar system using local tomography

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Development of method for searching fluid inclusions in carbonaceous chondrites has been made by using local tomography. Although the potential of this method has been checked in simulant samples, we cannot found any fluid inclusions in chondrite samples. In order to support the present method, techniques of sample preparation processes for later sample analysis and technique for discriminating mineral phases by tomography alone have been developed. Research for the spatial resolution of CT images has been also studied using simulation.