High Intensity Neutron Source

高强度中子源

• 批准号: 9260665
• 负责人: John Bayless
• 金额: $ 5万
• 依托单位: First Point Scientific, Inc.
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-01-01 至 1993-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9260665&HistoricalAwards=false
• 关键词: Intensity; Neutron; Source

This proposal addresses the problem of developing a novel, sealed, source of 14 MeV neutrons which can operate at high output flux with long life. The Multiple-Rod Anode Neutron Source (MRANS) uses a simple coldcathode plasma generator combined with a multipole magnetic field and a distributed ion extraction geometry to deliver a high fraction of atomic deuterium ions at energies of 200 keV to a tritium-loaded target. Neutrons are generated in the target through D-T reactions. The proposed ion source/extraction configuration, which is fundamentally different from that used in existing neutron sources, is expected to facilitate greatly increased performance. The objective of the Phase I project is to experimentally demonstrate the basic technical feasibility of the MRANS concept. This will be accomplished by performing the following three tasks: (1) design and assemble an MRANS-type hydrogen ion source; (2) perform pulsed experiments to demonstrate and characterize high-efficiency atomic ion extraction; and (3) develop the conceptual design for a fullscale Phase II experiment which will deliver neutron fluxes in the range of 10 2 to 103 n/s. Successful development of the proposed concept will form a firm foundation for Phase II, and for new and innovative applications of neutron technology.

该方案解决了开发一种新型的、密封的14 MeV中子源的问题，该中子源可以在高输出通量和长寿命下运行。多棒阳极中子源（MRANS）使用一个简单的冷阴极等离子体发生器，结合多极磁场和分布式离子提取几何结构，以提供高功率能量为200kev的氘原子离子到装载氚的靶上的部分。中子在靶中通过D-T反应产生。提出的离子源/萃取配置与现有中子源的配置有根本的不同，有望大大提高性能。第一阶段项目的目标是通过实验证明MRANS概念的基本技术可行性。这将通过以下三个任务来完成：(1)设计和组装mrans型氢离子源；(2)进行脉冲实验，以证明和表征高效的原子离子提取；(3)为全尺寸第二阶段实验制定概念设计，该实验将提供10.2至103 n/s范围内的中子通量。建议概念的成功发展将为第二阶段和中子技术的创新应用奠定坚实的基础。