超重核研究谱仪的RFQ冷却聚束器RFQ1L

RFQ Cooler and Buncher RFQ1L in Superheavy Nuclide Research Spectrometer

摘要: 介绍了超重核研究谱仪中RFQ冷却聚束器RFQ1L的结构和运用SIMION程序对离子的冷却、聚束、引出和撇气过程的模拟情况。模拟显示：通过仔细选择工作点就完全可以把经过充气反冲质量分离器分离后的低品质束流转化为斑点小、发射度小和能量单一的高品质束流，为紧接其后的磁铁和激光高效率分析提供条件。The structure and the simulation results about the cooling，bunching，extraction and skimming of the RFQ cooler and buncher RFQ1L， which is an important part of the beingbuilt superheavy nuclide research spectrometer， have been introduced. It shows that， by careful choice of its working point， we can obtain an ion beam with small beam spot， small emittance and mono energy， which can satisfy the requirements of the successive analyses by dipole and laser with high efficiencies.

Abstract: The structure and the simulation results about the cooling，bunching，extraction and skimming of the RFQ cooler and buncher RFQ1L， which is an important part of the beingbuilt superheavy nuclide research spectrometer， have been introduced. It shows that， by careful choice of its working point， we can obtain an ion beam with small beam spot， small emittance and mono energy， which can satisfy the requirements of the successive analyses by dipole and laser with high efficiencies.