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EXCITATION FUNCTION OF THE ~(nat)Ta(p,x)~(178m2)Hf REACTION

机译:〜(NAT)TA(P,X)〜(178M2)HF反应的激发功能

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~(178m2)Hf is an extremely interesting isomeric state due to its potential energy capacity level. One possible way to obtain it is by irradiation of a ~(nat)Ta sample with a high-current proton accelerator. Up to now, there was no information in the international experimental nuclear data base (EXFOR) for this reaction. Irradiations of ~(nat)Ta samples performed for other purposes provide an opportunity to address this question. This paper presents the ~(172m2)Hf independent production cross-sections determined by gamma-ray spectrometry. The ~(nat)Ta(p,x)~(172m2)Hf excitation function is studied in the 20-3500 MeV energy range. Comparisons with results by several nuclear models (ISABEL, Bertini, INCL4.5+ABLA07, PHITS, CASCADE07, and CEM03.02) used as event-generators in modern transport codes are also reported. However, since such models are generally not able to separately predict ground and isomeric states of reaction products, only. ~(178)Hf independent and cumulative cross-section data are compared.
机译:〜(178M2)HF由于其潜在的能量能力水平,HF是极其有趣的异构状态。获得它的一种可能方法是通过用高电流质子加速器辐射〜(NAT)TA样品。到目前为止,该反应的国际实验核数据库(EXFOR)没有信息。对其他目的进行的〜(NAT)TA样本的照射提供了解决这个问题的机会。本文介绍了γ射线光谱法测定的〜(172平方米)的独立生产横截面。在20-3500 mev能量范围内研究了〜(NAT)TA(P,X)〜(172M2)HF激励功能。还报告了通过多种核模型(Isabel,Bertini,Comper4.5 + Abla07,PHITS,Cascade07和CEM03.02)的比较使用作为现代传输代码中的事件发生器。然而,由于这种模型通常不能仅能够分别预测反应产物的磨碎和异构状态。 〜(178)比较了HF独立和累积截面数据。

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