2 至 4 MeV 的 7Li(3He，p0)9Be、7Li(3He，p2)9Be 和 7Li(3He，d0)8Be 反应的差分截面测量结果

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 : 2024-11-07 DOI:10.1016/j.nimb.2024.165564

C. López Pérez , K.B. Woller

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引用次数: 0

摘要

由于锂能够提高等离子体的性能，并具有保护底层高 Z PFC 的潜力，因此在聚变反应堆等离子体元件（PFC）中使用锂的问题日益突出。为了利用核反应分析（NRA）来研究锂在核聚变相关实验（如锂化 PFC 中的氢保留）中的深度剖面，需要在广泛的能量范围和散射角内对相关反应的截面进行实验测量，在散射角内已经测量了其他相关物种（如氘和氧）的差分截面。在本文中，我们报告了在 135° 的测量角下，从 2 到 3.919 MeV 的 7Li(3He，p0)9Be、7Li(3He，p2)9Be 和 7Li(3He，d0)8Be 反应的微分截面。测量是在氟化锂薄膜靶上进行的，并在 2 MeV 和 150° 下利用 7Li(p,α)4He反应测定了 7Li 的等密度。

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Differential cross section measurements of the 7Li(3He, p0)9Be, 7Li(3He, p2)9Be, and 7Li(3He, d0)8Be reactions from 2 to 4 MeV

The use of lithium in plasma facing components (PFCs) for fusion reactors is increasingly more prominent due to its ability to enhance plasma performance and potential to protect the underlying high-Z PFCs. In order to use nuclear reaction analysis (NRA) to investigate lithium depth profiles in fusion relevant experiments such as hydrogen retention in lithiated PFCs, there is a need for experimental measurements of the cross section of the reactions of interest over a wide range of energies and in a scattering angle in which the differential cross sections of other relevant species, such as deuterium and oxygen, have been measured. In this paper we report the differential cross sections of the ⁷Li(³He, p₀)⁹Be, ⁷Li(³He, p₂)⁹Be, and ⁷Li(³He, d₀)⁸Be reactions from 2 to 3.919 MeV at a measurement angle of 135°. The measurements were performed on a lithium fluoride film target with the ⁷Li areal density determined using the ⁷Li(p, α)⁴He reaction at 2 MeV and 150°.

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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.