70Zn (15mev /核子)+ 64Ni反应的磁谱仪研究进展

S. Koulouris, G. Souliotis, F. Cappuzzello, D. Carbone, A. Pakou, C. Agodi, G. Brischetto, M. Cavallaro, S. Calabrese, I. Ciraldo, O. Fasoula, J. Klimo, Konstantina Palli, O. Sgouros, V. Soukeras, A. Spatafora, D. Torresi, M. Veselský
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本文重点介绍了我们最近在费米能量附近和以下束流能量的外围反应中产生和鉴定富中子中等质量稀有同位素的工作。我们最近在意大利卡塔尼亚的INFN-LNS用磁谱仪进行了一次实验,获得了高质量的实验数据。本实验的主要目的是利用大接受度磁谱仪检验在该能量区进行弹射识别的可行性。我们开发的粒子识别技术主要依赖于离子的原子序数Z和离子电荷q的重建,然后是质量的识别。我们的方法成功地用于鉴定70Zn (15mev /核子)+ 64Ni反应中多核子转移产生的富中子抛射体。初步结果表明,所提取的实验分布,以及与理论模型的比较,有助于揭示该能量域中多核子转移的复杂反应机理。
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Recent Progress in the Study of the Reaction 70Zn (15 MeV/nucleon) + 64Ni with the MAGNEX Spectrometer
The present paper is focused on our recent efforts to study the production and identification of neutron-rich medium-mass rare isotopes from peripheral reactions at beam energies around and below the Fermi energy. We obtained high-quality experimental data from a recent experiment with the MAGNEX spectrometer at the INFN-LNS in Catania, Italy. The main aim of this experiment was to check the feasibility of ejectile identification in this energy regime with the use of a large acceptance magnetic spectrometer. Our developed technique for particle identification depends mainly on a reconstruction of both the atomic number Z and the ionic charge q of the ions, followed by the identification of the mass. Our method was successfully applied to identify neutron-rich ejectiles from multinucleon transfer from the reaction of 70Zn (15 MeV/nucleon) + 64Ni. Preliminary results indicate that the extracted experimental distributions, along with comparisons with the theoretical models could help us to shed light to the complex reaction mechanism of multinucleon transfer in this energy regime.
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