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<專題討論>2017/12/14(四)14:10綜合大樓2樓48218教室演講「Implementation of a 10 kJ pulsed-power generator」( 張博宇 助理教授 / 成大電漿所 )

張貼者:2017年12月10日 下午6:16Dabby Lu

A 10 kJ pulsed-power generator as a platform is being built to study plasma jets in space, nuclear fusion, specifically on inertial-confinement fusion (ICF), and to generate neutrons, soft-x rays, and extreme ultraviolet (EUV). The system will be built using an architecture called parallel plate capacitor bank (PPCB). In PPCB, all capacitors are connected in parallel and the current from all capacitors are delivered to the load through a parallel plate transmission line due to its low inductance and simple system configuration. Twenty 1 µF capacitors which can be charged up to 40 kV are used.  The total discharge energy can be up to 16 kJ and the expected output current will be more than 100 kA with a rise time of 1 µs, i.e., an output power of 10 GW.

Any loads will be heated and ionized by the high current. The generated plasma can potentially be used for following purposes: (1) generating plasma jets to study interactions between plasma flows and unmagnetized/magnetized obstacles analogous to the interactions between solar winds and planetary magnetic fields or unmagnetized planets; (2) generating soft x-ray/EUV using gas- puff z pinches for bio-medical research or EUV lithography; (3) generating soft x-ray lasers using capillary discharge; and (4) studying the pinch in a dense plasma focus device as a high efficient neutron source for Neutron capture therapy of cancer. The pulsed-power generator is being built by students in the lab from scratch and is expected to be finished by next Summer. The preliminary design and some testing results of each hand-made component will be given.

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Dabby Lu,
2017年12月10日 下午6:16
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