A slotted beam pipe kicker magnet with solid state drive for SPEAR III

Conference Record of the Twenty-Fifth International Power Modulator Symposium, 2002 and 2002 High-Voltage Workshop. Pub Date : 2002-06-30 DOI:10.1109/MODSYM.2002.1189428

C. Pappas

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引用次数: 1

Abstract

The SPEAR III kicker system uses three magnets, K1, K2, and K3, to inject a 3.3 GeV beam into a light source. A slotted beam pipe magnet design is used. Individual induction type solid state modulators power the magnets. Modulators for K1 and K3 use ten IGBTs to drive ten single turn primaries of a transformer. Bi-polar outputs are achieved by passing two conductive rods in opposite directions through the centers of ten FINEMET cores. Two 22.5 /spl Omega/ cables connect each of the output terminals to the corresponding magnet busses. Magnet K2 is half the length of the other kickers, and thus has one half the inductance. It is required that the pulse shape of each kicker be identical in order to have a closed orbit for the injected beam, so the output impedance of K2 must also be half. Therefore, K2 uses a stack of five cores with four cables connected to each of the output terminals. The modulators for K1 and K3 are designed to produce bi-polar 20 kV, 3 kA pulses of 1 /spl mu/s at 10 Hz, with rise and fall times of less than 350 ns. Prototypes of both the magnet and the modulator have been built, and components for installation are in fabrication. Details of the design, and test data from the prototype system are presented.

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一种用于SPEAR III的带固态驱动的开槽束管踢脚磁铁

SPEAR III踢脚系统使用三个磁铁，K1、K2和K3，向光源注入3.3 GeV的光束。采用开槽束管磁体设计。单个感应式固态调制器为磁体供电。K1和K3的调制器使用10个igbt来驱动变压器的10个单匝初级电压。双极输出是通过将两个方向相反的导电棒穿过十个FINEMET磁芯的中心来实现的。两个22.5 /spl ω /电缆将每个输出端子连接到相应的电磁母线。磁铁K2是其他踢脚的一半长度，因此有一半的电感。为了使注入光束有一个闭合的轨道，要求每个踢球器的脉冲形状相同，因此K2的输出阻抗也必须为一半。因此，K2使用五芯堆叠，每个输出端子分别连接四根电缆。K1和K3的调制器设计用于在10 Hz下产生1 /spl mu/s的双极性20 kV, 3 kA脉冲，上升和下降时间小于350 ns。磁铁和调制器的原型已经建成，安装部件正在制造中。给出了系统的设计细节和样机的测试数据。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Conference Record of the Twenty-Fifth International Power Modulator Symposium, 2002 and 2002 High-Voltage Workshop.

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