Experimental and theoretical results of gamma shielding features for copper based shape memory alloys

IF 3.3 3区 工程技术 Q1 NUCLEAR SCIENCE & TECHNOLOGY
Seçil Niksarlıoğlu , Ferdi Akman , Osman Agar , Mustafa Recep Kaçal , Muhammed Sait Kanca
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Abstract

In this study, the gamma ray attenuation characteristics for CuAlNi shape memory alloys with different proportions of Sn doping was investigated. We determined the mass attenuation coefficient (μ/ρ) of CuAlNiSn alloys both experimentally and theoretically within an energy range of 59.5–1332.5 keV. The experimental measurements were made using a high purity Germanium detector (HPGe) and theoretical calculations were made using WinXCOM program. To evaluate the gamma radiation shielding abilities of the alloy samples, the obtained (μ/ρ) values were used to determine the gamma protection parameters μ, HVL, TVL, MFP, and Zeff. In addition, the radiation protection efficiency (RPE) parameter was determined using gamma ray intensities in the absence and presence of the attenuator. Further analysis of the samples was conducted using a Rigaku Miniflex 600 model computer-controlled X-ray diffractometer (CuKα & λ = 1.5405 A0). The crystallographic structure of the alloys before and after irradiation was investigated. Other analysis which include EDX analysis (to investigate the chemical content) and SEM analysis (to investigate the microstructure) were conducted. According to result outcomes, gamma ray radiation did not affect the shape memory properties of structure. Another interesting observation is that, the radiation attenuation properties increase with increasing Sn concentration. Finally, we discovered that the CuAlNiSn4 alloy (which has the highest doping rate) provides good protection especially at low energy levels.

铜基形状记忆合金伽马屏蔽功能的实验和理论结果
本研究调查了掺杂不同比例锡的 CuAlNi 形状记忆合金的伽马射线衰减特性。我们通过实验和理论测定了 CuAlNiSn 合金在 59.5-1332.5 keV 能量范围内的质量衰减系数 (μ/ρ)。实验测量使用的是高纯锗探测器(HPGe),理论计算使用的是 WinXCOM 程序。为了评估合金样品的伽马辐射屏蔽能力,利用获得的(μ/ρ)值确定了伽马防护参数μ、HVL、TVL、MFP和Zeff。此外,还利用衰减器不存在和存在时的伽马射线强度确定了辐射防护效率(RPE)参数。使用理学 Miniflex 600 型计算机控制 X 射线衍射仪(CuKα & λ = 1.5405 A0)对样品进行了进一步分析。研究了辐照前后合金的晶体结构。还进行了其他分析,包括 EDX 分析(研究化学成分)和 SEM 分析(研究微观结构)。结果表明,伽马射线辐照不会影响合金结构的形状记忆特性。另一个有趣的现象是,辐射衰减特性随锡浓度的增加而增加。最后,我们发现 CuAlNiSn4 合金(掺杂率最高)提供了良好的保护,尤其是在低能量水平下。
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来源期刊
Progress in Nuclear Energy
Progress in Nuclear Energy 工程技术-核科学技术
CiteScore
5.30
自引率
14.80%
发文量
331
审稿时长
3.5 months
期刊介绍: Progress in Nuclear Energy is an international review journal covering all aspects of nuclear science and engineering. In keeping with the maturity of nuclear power, articles on safety, siting and environmental problems are encouraged, as are those associated with economics and fuel management. However, basic physics and engineering will remain an important aspect of the editorial policy. Articles published are either of a review nature or present new material in more depth. They are aimed at researchers and technically-oriented managers working in the nuclear energy field. Please note the following: 1) PNE seeks high quality research papers which are medium to long in length. Short research papers should be submitted to the journal Annals in Nuclear Energy. 2) PNE reserves the right to reject papers which are based solely on routine application of computer codes used to produce reactor designs or explain existing reactor phenomena. Such papers, although worthy, are best left as laboratory reports whereas Progress in Nuclear Energy seeks papers of originality, which are archival in nature, in the fields of mathematical and experimental nuclear technology, including fission, fusion (blanket physics, radiation damage), safety, materials aspects, economics, etc. 3) Review papers, which may occasionally be invited, are particularly sought by the journal in these fields.
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