Design of an Ion Source for 3He Fusion in a Low Pressure IEC Device
Design of an Ion Source for 3He Fusion in a Low Pressure IEC Device
复制标题
低压 IEC 装置中 3He 聚变离子源的设计
DOI：
10.13182/fst05-a860
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发表时间：
2005
影响因子：
0.9
通讯作者：
H. Momota
中科院分区：
文献类型：
--
作者：
G. Miley;Y. Yang;J. Webber;Y. Shaban;H. Momota
摘要最近在螺旋离子源和惯性静电约束（IEC）设备性能的发展，在威斯康星大学麦迪逊分校启用低压（< 50 μ π ι，6.7 mPa）的操作条件，应允许3 He-3 He聚变反应，以观察在IEC设备。设计并测试了一种能以最小中性气体流量将~ 10 mA ~ 3 He离子束注入IEC装置的离子源。此外，一个新的IEC装置，从来没有与氘操作已经构建，以避免D-3 He质子从阻碍3 He-3 He反应产物光谱，并尽量减少潘宁电离的氘激发氦，这在过去被怀疑限制了电离密度的He。这些发展使得研究束背景3 He-3 He核聚变反应成为可能。
Abstract Recent developments in helicon ion sources and Inertial Electrostatic Confinement (IEC) device performance at UW-Madison have enabled low pressure (< 50 μtorr, 6.7 mPa) operating conditions that should allow the 3He-3He fusion reaction to be observed in an IEC device. An ion source capable of delivering a ~ 10 mA 3He ion beam into an IEC device with minimal neutral gas flow has been designed and tested. Furthermore, a new IEC device that has never been operated with deuterium has been constructed to avoid D-3He protons from obstructing the 3He-3He reaction product spectrum, and to minimize Penning ionization of deuterium by excited helium, which in the past is suspected to have limited the ionized density of He. These developments make it possible to study beam-background 3He-3He fusion reactions with > 300 mA recirculating ion currents.