火星紫外线模拟设施

Mars ultraviolet simulation facility.

作者信息

Zill L P, Mack R, DeVincenzi D L

出版信息

J Mol Evol. 1979 Dec;14(1-3):79-89. doi: 10.1007/BF01732370.

Abstract

A facility was established for long-duration ultraviolet (UV) radiation exposure of natural and synthetic materials in order to test hypotheses concerning Martian soil chemistry observed by the Viking Mars landers. The system utilized a 2500 watt xenon lamp as the radiation source, with the beam passing through a heat-dissipating water filter before impinging upon an exposure chamber containing the samples to be irradiated. The chamber was designed to allow for continuous tumbling of the samples, maintenance of temperatures below 0 degrees C during exposure, and monitoring of beam intensity. The facility also provided for sample preparation under a variety of atmospheric conditions, in addition to the Mars nominal. As many as 33 sealed sample ampules have been irradiated in a single exposure. Over 100 samples have been irradiated for approximately 100 to 700 h. The facility has performed well in providing continuous UV irradiation of multiple samples for long periods of time under simulated Mars atmospheric and thermal conditions.

摘要

建立了一个设施，用于对天然和合成材料进行长时间紫外线（UV）辐射，以检验关于维京号火星着陆器观测到的火星土壤化学的假设。该系统使用一盏2500瓦的氙灯作为辐射源，光束在照射包含待辐照样品的曝光室之前，先通过一个散热水滤光器。该室的设计允许样品持续翻滚，在曝光期间将温度保持在0摄氏度以下，并监测光束强度。除了火星标称条件外，该设施还能在各种大气条件下进行样品制备。单次曝光中已对多达33个密封样品安瓿进行了辐照。已对100多个样品进行了约100至700小时的辐照。该设施在模拟火星大气和热条件下，长时间为多个样品提供连续紫外线辐照方面表现良好。