The square kilometre array baseline design V2.0
The square kilometre array baseline design V2.0
复制标题
平方公里阵列基线设计V2.0
DOI：
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
M. Waterson
中科院分区：
文献类型：
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作者：
G. Tan;T. Cornwell;P. Dewdney;M. Waterson
2014年4月，SKA组织启动了一项重新确定SKA(SKA1)建设项目第一阶段基线的进程。这一过程的目标是确定一个系统的范围和规模，以与最初6.5亿欧元的成本上限一致的成本提供最大的科学产量。根据SKA望远镜组成要素(SKA1-Low/SKA1-Mid/SKA1-Survey)的成本计算信息，开发了一个可伸缩的成本模型，以便对不同备选方案的科学绩效与成本进行分析。利用这一成本模型，利用基于蒙特卡罗技术的客观方法，制定了一套重新确定基线的备选方案，这将提供科学影响的最佳范围。外部科学和工程专家小组对这些重新确定基准的备选方案进行了审查，最后于2015年3月初提交给SKA理事会，供其作出最后决定。2015年3月6日，SKA董事会一致同意继续设计和建造价值6.5亿欧元的SKA1，其中包括两个互补的世界级仪器--一个在澳大利亚(SKA1-Low)，另一个在南非(SKA1-Mid)--两个仪器都希望提供令人兴奋的变革性科学。
In April 2014 the SKA Organisation initiated a process to re-baseline the first phase of the SKA (SKA1) Construction Project. The objective of this process was the scoping and scaling of a system that delivers the maximum science throughput at a cost consistent with the original cost cap of € 650M. Based on costing information from the elements constituting the SKA telescopes (SKA1-Low / SKA1-Mid / SKA1-Survey), a scalable cost model was developed that allowed the analysis of science performance against cost for different options. Using this cost model a set of re-baselining options were developed, using an objective method based on the Monte Carlo technique, which would provide an optimum range of science impact. These sets of re-baselining options were reviewed by external science and engineering expert panels and finally presented to the SKA Board in early March 2015 for a final decision. On March 6th, 2015 the SKA Board of Directors unanimously agreed to proceed with the design and construction of the € 650M SKA1 consisting of two complementary world-class instruments - one in Australia (SKA1-Low) and one in South Africa (SKA1-Mid) - both expecting to deliver exciting and transformational science.