概括
"宇宙-1402号"卫星的使用
科学领域:
- 核工程 核工程是指核工程.
- 大气化学 大气化学
- 太空科学 太空科学
背景情况:
- 由-235 ((235) U) 核反应堆供电的Cosmos-1402卫星于1983年重新进入地球大气层.
- 该卫星在南大西洋上空解体,引发了对其反应堆核心命运的质疑.
研究的目的:
- 为了确定宇宙-1402核反应堆核心在地球大气中的分布和命运.
- 为了量化卫星重新进入后在平流层中-235 ((235) U) 的存在.
主要方法:
- 在北半球收集气溶样本的高空气球采集.
- 分析气溶样本的-235 ((235) U) 度在27至36公里的高度.
- 在平流层中计算出-235 ((235) U) 的总过剩量.
主要成果:
- 在平流层气溶样本中检测到-235 ((235) U) 的过度度.
- 在36公里的高度测量了235U度的53 +/- 20%的过剩.
- 据估计,在平流层中存在44 +/- 15公斤的多余 (235) .
结论:
- 该研究证实了来自Cosmos-1402反应堆到平流层的-235 ((235) U) 的分散.
- 这些发现提供了关于大气运输和来自卫星再入事件的核材料命运的关键数据.
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