Verification of the effects of sterilisation/decontamination procedures on Mars Analogue materials.

验证灭菌/净化程序对火星模拟材料的影响。

• 批准号: ST/G000018/1
• 负责人: Sara Russell
• 金额: $ 6.07万
• 依托单位: Natural History Museum
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2008
• 资助国家: 英国
• 起止时间: 2008 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=ST%2FG000018%2F1
• 关键词: Verification; effects; sterilisation; decontamination; procedures

Within the next few decades it is hoped that several space missions will be able to travel to other planets, such as Mars, and bring material back. One of the potential risks of such missions is that the returned material may contain extant life, which could then interact with terrestrial life, with possibly dire consequences. Although the likelihood of such an event occurring is very small, it is potentially so devastating that it is necessary to assure that any returned material is fully sterilised on arrival on Earth. One concern is that the sterilisation procedure may subtly change the samples, and so prevent the scientists who study them from getting the correct picture about the true pristine nature of the returned rock. We are therefore planning a programme of research to investigate how various possible sterilisation protocols (e.g. irradiation) affects rocks, by measuring the characteristics of rocks similar to those we expect to find on mars, then sterilising them and re-measuring them. In this way we will be able to recommend suitable procedures for sterilisation that do not compromise them scientifically.

在接下来的几十年内，人们希望多个太空任务能够前往其他行星，例如火星，并带回物质。此类任务的潜在风险之一是返回的材料可能含有现存生命，然后它们可能与地球生命相互作用，并可能带来可怕的后果。尽管发生此类事件的可能性非常小，但其破坏性可能非常大，因此有必要确保任何返回的材料在抵达地球时都经过完全消毒。一个担忧是，灭菌过程可能会微妙地改变样本，从而阻止研究样本的科学家正确了解返回岩石的真实原始性质。因此，我们正在计划一项研究计划，通过测量与我们期望在火星上发现的岩石类似的岩石特征，然后对它们进行消毒并重新测量，来研究各种可能的灭菌方案（例如辐射）如何影响岩石。通过这种方式，我们将能够推荐合适的灭菌程序，而不会影响科学性。

项目成果

GAMMA IRRADIATION EFFECTS IN MARS ANALOGUES

类似火星中的伽马辐射效应

• 发表时间: 2009
• 期刊: METEORITICS & PLANETARY SCIENCE
• 影响因子: 2.2
• 作者: Needham A. W.

Gamma irradiation effects on martian analogues

伽马射线照射对火星类似物的影响

• 发表时间: 2008
• 期刊: METEORITICS & PLANETARY SCIENCE
• 影响因子: 2.2
• 作者: Needham A. W.