报告题目：The Square Kilometre Array: the next step in radio astronomy - An engineering challenge

报告人：Gie Han Tan，工程师

报告时间：4月22日（星期五）下午14:00-15:00

报告地点：清华大学精密仪器系大会议室，4304房间

报告摘要：

The Square Kilometre Array (SKA) project is a global science and engineering project aiming at designing and constructing the next-generation radio telescope operating in the metre and centimetre wavelengths regions. The first phase of construction of the telescope (SKA1), which represents roughly 10% of the full SKA (SKA2), is currently well advanced with its design and expected to be operational early next decade. The SKA radio telescopes will be co-hosted in two locations with central array sites in Australia, SKA1-Low (50 – 350 MHz), and South Africa, SKA1-Mid (350 MHz – 13.8 GHz with an option for > 20 GHz). This presentation will provide an overview of the science objectives, project organization, key design drivers and high level system design. Following this introduction the various engineering challenges are addressed in more detail.

报告人简介：

Gie Han Tan is the Domain Specialist RF/Dish at the Square Kilometre Array Organization (UK). After graduating in 1987 from the University of Twente in Enschede, Netherlands, as an electrical engineer, specializing in microwave technology, he has worked almost exclusive in the field of radio telescopes. He has worked from 1987 to 2000 at ASTRON in Dwingeloo, Netherlands, and from 2000 onwards at the European Southern Observatory, an intergovernmental organization headquartered in Garching near Munich, Germany. He contributed to world class radio telescopes in a very wide wave length regime, including LOFAR, Westerbork Synthesis Radio Telescope (WSRT), RadioAstron (Space VLBI), Atacama Large Millimeter/submillimeter Array, and most recently the SKA. In most of these projects he held key positions in the areas of receiver R&D, radio telescope system design and management. He has been advising and consulting to various organizations and projects, including European Space Agency (ESA), SKA Organization, and the Dutch Technology Foundation STW.