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arXiv 2307.03752physics.ins-detnucl-ex
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用于大接收度磁谱仪 VAMOS++ 的快速轨迹重建技术

Fast trajectory reconstruction techniques for the large acceptance magnetic spectrometer VAMOS++

A. Lemasson, M. Rejmund

AI总结:

针对 VAMOS++ 磁谱仪的非线性离子光学问题,本文提出三种重离子轨迹重建方法,并利用裂变碎片数据验证了其在原子质量数分辨率上的性能。

摘要:

位于法国 GANIL 的大角度和大动量接收度磁谱仪 VAMOS++ 经常被用于核结构与反应动力学研究。它能够在库仑势垒附近的束流能量下,对核反应中产生的重离子进行逐事件鉴别。VAMOS++ 的高度非线性离子光学要求使用谱仪中的重离子轨迹重建方法来获得所测原子质量数的高分辨率定义。本文介绍了为 VAMOS++ 开发并使用的三种不同的轨迹重建方法。利用在谱仪中探测到的裂变碎片单一数据集,展示并讨论了在重建原子质量数分辨率方面所获得的性能。

英文摘要:

The large angular and momentum acceptance magnetic spectrometer VAMOS++, at GANIL, France, is frequently used for nuclear structure and reaction dynamics studies. It provides an event-by-event identification of heavy ions produced in nuclear reactions at beam energies around the Coulomb barrier. The highly non-linear ion optics of VAMOS++ requires the use of the heavy ion trajectory reconstruction methods in the spectrometer to obtain the high-resolution definition of the measured atomic mass number. Three different trajectory reconstruction methods, developed and used for VAMOS++, are presented in this work. The performances obtained, in terms of resolution of reconstructed atomic mass number, are demonstrated and discussed using a single data-set of fission fragments detected in the spectrometer.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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