论文标题
LBNF的300 ka脉冲电源
A 300 kA Pulsed Power Supply for LBNF
论文作者
论文摘要
长基线中微子设施（LBNF）将产生世界上最激烈的中微子束。三个系列连接的磁角将需要5kV，300ka，800 $μ$ S脉冲，以0.7Hz的速度将光束聚焦。过去，费米拉布（Fermilab）过去为号角设计和建造了高电流供应。主注射器（NUMI -NOVA）的205 ka的脉冲电流聚焦为120 GEV束，用于助推器中微子束（BNB -MINIBOONE）的170 ka用于聚焦8 GEV束，已经运行了约18年。虽然预计将更换磁角，但LBNF号角电源预计将持续该项目的寿命30年。一个共振，半正弦波脉冲脉冲用于NUMI和BNB，并且具有许多实际优势。该系统通过设计有限的故障电流有限，尽管大型电流。与谐振行为一起意味着晶闸管开关非常适合。还计算了系统的许多故障模式。加入了几次电路更改，以便可以容忍单个故障。供应必须是可转动的，以使中微子和抗神经替代物能够产生。这些逆转要求需要大量的机械设计和考虑，以便快速逆转所有半导体。
The Long Baseline Neutrino Facility (LBNF) will produce the worlds most intense neutrino beam. Three series connected magnetic horns will require 5kV, 300kA, 800$μ$s pulses at a rate of 0.7Hz to focus the beam. Fermilab has designed and built pulsed high current supplies for horns in the past. Pulsed currents of 205 kA for Neutrinos at Main Injector (NuMI - NOvA), focusing a 120 GeV beam, and 170 kA for Booster Neutrino Beam (BNB - MiniBooNE) for focusing an 8 GeV beam have been operational for about 18 years. While the magnetic horns are expected to be replaced, the LBNF horn power supply is expected to last the lifetime of the project, 30 years. A resonant, half sine wave pulser was used for NuMI and BNB and has many practical advantages. The system has impedance limited fault currents by design, albeit large ones. That along with the resonant behavior means that thyristor switches are well suited. Many fault modes of the system have also been calculated. Several circuit changes were incorporated so that a single fault can be tolerated. The supply must be reversable to enable both neutrinos and anti-neutrinos to be produced. These reversal requirements required a significant amount of mechanical design and consideration to allow for quick reversal of all the semiconductors.
