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首页> 外文会议>Instruments, methods, and missions for astrobiology XIV >Spectral Profiling Imaging (SPI): Extending L.I.F.E. technology for the Remote Exploration of Life in Ice Caves (R.E.L.I.C.) On Earth and Mars
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Spectral Profiling Imaging (SPI): Extending L.I.F.E. technology for the Remote Exploration of Life in Ice Caves (R.E.L.I.C.) On Earth and Mars

机译：频谱分析和成像（SPI）：扩展L.I.F.E.地球和火星上冰洞（R.E.L.I.C.）远程探索生命的技术

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On Earth, the ice of the lakes, glaciers, and caves of the cryosphere (from the ancient Greek word cryos, meaning "cold" or "ice") harbors rich, complex biotic communities. Ice cave habitats have been posited for the Mars cryosphere. Ice in such caves would protect microbes from UV, X-rays, and heavy particle radiation and might be accessible during robotic or astronaut missions. Detection of putative biota-rich ice will require in situ detection of biosignatures in cave walls, floor, and ceiling a few centimeters to tens of meters distant from the investigating rover or astronaut. We describe the development of a prototype for a non-destructive, non-contact device that rapidly generates reflectance and fluorescence images and a midline target profile of 960 reflectance and fluorescence spectra. Spectral Profiling and Imaging (SPI) requires no irreplaceable consumables and can be sufficiently miniaturized to be used by a single astronaut or a small robotic explorer. The current laboratory instrument is designated SPI~2 since it generates data sets for two optical phenomena: reflectance and fluorescence. In final form SPI~4 will be integrated with an autonomous rover and generate data for four optical phenomena: reflectance, fluorescence, Raman scattering, and circular polarization. SPI~4 will be useful for the Remote Evaluation of Life in Ice Caves (R.E.L.I.C.) on planetary bodies whose distance from Earth prohibits real-time mission control.
机译：在地球上，湖泊，冰川和冰冻圈洞穴的冰（来自古希腊语cryos，意为“冷”或“冰”）蕴藏着丰富而复杂的生物群落。已经为火星冰冻圈定了冰洞栖息地。这样的洞穴中的冰可以保护微生物免受紫外线，X射线和重粒子辐射的侵害，并且在执行机器人或宇航员任务时可能可以进入。要检测可能的富含生物区系的冰，将需要在距离被调查的漫游车或宇航员几厘米到几十米的洞穴墙壁，地板和天花板中进行生物特征的原位检测。我们描述了一种用于非破坏性，非接触式设备的原型的开发，该设备可快速生成反射率和荧光图像以及960反射率和荧光光谱的中线目标轮廓。频谱分析和成像（SPI）不需要不可替代的消耗品，并且可以充分小型化，以供单个宇航员或小型机器人探测器使用。当前的实验室仪器被称为SPI〜2，因为它可以生成两个光学现象的数据集：反射率和荧光。最终的SPI〜4将与自主流动站集成在一起，并为四种光学现象生成数据：反射率，荧光，拉曼散射和圆偏振。 SPI〜4对于远程评估行星上冰洞（R.E.L.I.C.）中生命的行星有用，这些行星体与地球的距离会阻止实时任务控制。

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