使用CIAE的小型AMS设备进行129I测量

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 : 2025-10-03 DOI:10.1016/j.nimb.2025.165883

Wenhui Zhang, Qingzhang Zhao, Ming He, Tao Sun, Chengli Xiu, Kangning Li, Yiwen Bao, Jianliang Li, Wei Guo, Shengyong Su, Qubo You

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引用次数: 0

摘要

中国原子能科学研究院研制了一种小型加速器质谱计（AMS）装置。在本文中，我们介绍了该设备在129I测量中的性能。127I2+的最大传输效率为55%，而在实际中可靠的129I测量采用46%的值。129I/127I比值的理论上限为1.5 × 10−14。用已知129I/127I比率范围内的一系列样品验证了129I测量方法。

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129I measurements with a compact AMS facility at CIAE

A compact accelerator mass spectrometer (AMS) facility was developed by the China Institute of Atomic Energy (CIAE). In this paper we present the performance of this facility in ¹²⁹I measurements. The maximum transmission efficiency for ¹²⁷I²⁺ is 55 %, while a value of 46 % is adopted in practice for reliable ¹²⁹I measurements. The theoretical upper limit for the ¹²⁹I/¹²⁷I ratio is 1.5 × 10⁻¹⁴. The method of ¹²⁹I measurements is validated with a series of samples in ranges of known ¹²⁹I/¹²⁷I ratios.

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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.