Research of Contamination Prevention in the Whole Process of Lunar Samples Transfer

According to the China’s lunar exploration program, in its third phase lunar samples will be collected and returned to Earth. An extensive research was conducted on the contamination prevention measures and the development of the requirements for protection and contamination prevention of lunar samples in the course of opening the samples’ packaging device after its return to Earth, transfer and storage of the samples, preparation and analysis of the samples and so on. At the same time, we present a design concept of the most important ground facility for opening the device and re-packaging the samples in Lunar Sample’s Preservation and Processing Laboratory. Analysis and calculating of the key technical index of the environment requirements for contamination prevention were also accomplished.