Measurement of α-particle-induced nuclear reaction cross sections on 45Sc

IF 1.4 3区物理与天体物理 Q3 INSTRUMENTS & INSTRUMENTATION

Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms Pub Date : 2025-05-12 DOI:10.1016/j.nimb.2025.165735

Emi Sakamoto , Masayuki Aikawa , Shota Nikaido , Saki Goto , Akihiro Nambu , Hiromitsu Haba

引用次数: 0

Abstract

⁴⁸V is a medical radionuclide applicable for positron emission tomography (PET). It can be produced through α-particle-induced reactions on ⁴⁵Sc. In this study, we measured the cross sections of these reactions using the stacked-foil activation technique and γ-ray spectrometry. The measured cross sections up to 29 MeV are in good agreement with data above 22 MeV obtained in our previous study. We also calculated the physical thick target yields based on the measured cross sections. The results suggest that a projectile energy of approximately 15 MeV is optimal for achieving nearly saturated ⁴⁸V production while minimizing the formation of radioactive co-products.

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α-粒子诱导45Sc核反应截面的测量

48V是一种医用放射性核素，适用于正电子发射断层扫描（PET）。它可以通过α-粒子在45Sc上诱导反应生成。在本研究中，我们使用叠箔活化技术和γ射线能谱法测量了这些反应的横截面。测量到的29 MeV以上的截面与我们之前研究得到的22 MeV以上的数据吻合得很好。我们还计算了基于测量截面的物理厚目标产率。结果表明，在使放射性副产物的形成最小化的同时，大约15 MeV的弹丸能量是实现接近饱和48V生产的最佳选择。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms 物理-核科学技术

CiteScore

2.80

自引率

7.70%

发文量

231

审稿时长

1.9 months

期刊介绍： Section B of Nuclear Instruments and Methods in Physics Research covers all aspects of the interaction of energetic beams with atoms, molecules and aggregate forms of matter. This includes ion beam analysis and ion beam modification of materials as well as basic data of importance for these studies. Topics of general interest include: atomic collisions in solids, particle channelling, all aspects of collision cascades, the modification of materials by energetic beams, ion implantation, irradiation - induced changes in materials, the physics and chemistry of beam interactions and the analysis of materials by all forms of energetic radiation. Modification by ion, laser and electron beams for the study of electronic materials, metals, ceramics, insulators, polymers and other important and new materials systems are included. Related studies, such as the application of ion beam analysis to biological, archaeological and geological samples as well as applications to solve problems in planetary science are also welcome. Energetic beams of interest include atomic and molecular ions, neutrons, positrons and muons, plasmas directed at surfaces, electron and photon beams, including laser treated surfaces and studies of solids by photon radiation from rotating anodes, synchrotrons, etc. In addition, the interaction between various forms of radiation and radiation-induced deposition processes are relevant.