Article(id=1147999680086139506, tenantId=1146029695717560320, journalId=1146123346816638986, issueId=1147999671055802382, articleNumber=1000-8063(2024)04-0065-07, orderNo=null, doi=10.13426/j.cnki.yky.2024.05.03, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1716307200000, receivedDateStr=2024-05-22, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1751634052534, onlineDateStr=2025-07-04, pubDate=1732032000000, pubDateStr=2024-11-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1751634052534, onlineIssueDateStr=2025-07-04, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1751634052534, creator=13701087609, updateTime=1751634052534, updator=13701087609, issue=Issue{id=1147999671055802382, tenantId=1146029695717560320, journalId=1146123346816638986, year='2024', volume='43', issue='4', pageStart='1', pageEnd='126', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1751634050380, creator=13701087609, updateTime=1759123758692, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1179413784637617069, tenantId=1146029695717560320, journalId=1146123346816638986, issueId=1147999671055802382, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1179413784641811374, tenantId=1146029695717560320, journalId=1146123346816638986, issueId=1147999671055802382, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=65, endPage=71, ext={EN=ArticleExt(id=1147999680383935128, articleId=1147999680086139506, tenantId=1146029695717560320, journalId=1146123346816638986, language=EN, title=Study of Erbium Determination in Large Sample Based on PGNAA Technique, columnId=1175805041752556213, journalTitle=Uranium Mining and Metallurgy, columnName=MINING AND HYDROMETALLURGY, runingTitle=null, highlight=null, articleAbstract=
In the majority of reactors, a proportion of the combustible neutron poisons is incorporated into the fuel rods with the intention of increasing their burnup depth, thereby extending the operational lifespan of the core and enhancing the economic efficiency of the process. Erbium (Er) is a common combustible neutron poison, and in order to address the issue of on-line monitoring of the Er elemental content during the production of such fuel rods, a solution must be found. A novel approach, namely Prompt Gamma-ray Neutron Activation Analysis (PGNAA), is employed, which is well-suited to large-volume samples and can be detected online. Utilising the americium-beryllium (AmBe) isotope neutron source and high-purity germanium to establish an experimental measurement platform, with erbium oxide (Er2O3) selected as the sample. This is also combined with the MCNP to perform simulation calculations. The results demonstrate that the mass and the net area of the characteristic peaks of the sample exhibit a linear variation after correction for neutron self-shielding. The mass detection limit of the platform for erbium was 24.2 g, with a relative standard deviation of 3.65% and a relative error of 3.47%. The accuracy and precision were affected by the statistical fluctuations inherent to the data set. Subsequent optimisation of the equipment will enhance the accuracy and precision. The results demonstrate the feasibility of this method for online monitoring and establish a foundation for the subsequent use of thermal neutrons to measure the elemental content of erbium and to correct the neutron self-shielding effect of large-volume samples.
, correspAuthors=Can CHENG, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, authorCompany=null, fund=null, authors=null, authorsList=Zhenhua ZHANG, Haowei ZHUANG, Wenbao JIA, Zeliang WANG, Yan ZHANG, Can CHENG), CN=ArticleExt(id=1147999682938266488, articleId=1147999680086139506, tenantId=1146029695717560320, journalId=1146123346816638986, language=CN, title=基于瞬发伽马活化分析技术对大体积样品Er元素的测量研究, columnId=1175805041991631542, journalTitle=铀矿冶, columnName=开采·选冶, runingTitle=null, highlight=null, articleAbstract=在大多数反应堆中,为了增加堆芯寿命和提高经济效益,考虑在燃料棒中掺入一部分可燃中子毒物来增加其燃耗深度。铒(Er)是一种常见的可燃中子毒物,为了解决这类燃料棒生产过程中Er元素含量的在线监测问题,使用瞬发伽马活化分析技术(Prompt Gamma-ray Neutron Activation Analysis, PGNAA)对大体积样品进行了在线检测研究。利用镅铍(AmBe)同位素中子源和高纯锗搭建试验测量平台,选用氧化铒(Er
2O
3)作为样品,同时结合MCNP进行模拟计算。结果显示,样品的质量和特征峰净面积在经过中子自屏蔽修正后成线性变化关系。该平台对铒元素的质量检测限为24.2 g,相对标准偏差为3.65%,相对误差为3.47%;准确度和精密度受数据统计涨落的影响,后续将对设备进行优化,以增加监测准确度和精密度。研究结果证明了利用该方法进行在线监测的可行性,并为后续使用热中子测量铒元素含量和修正大体积样品中子自屏蔽效应奠定了基础。, correspAuthors=程璨, authorNote=null, correspAuthorsNote=
程璨(1992—),安徽合肥人,博士,工程师,主要研究方向为核技术及应用;
张焱(1989-),男,湖北襄阳人,博士,副教授,主要研究方向为核技术及应用。
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张镇华(2002—),男,江西南昌人,在读硕士,主要研究方向为核技术及应用。
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张镇华(2002—),男,江西南昌人,在读硕士,主要研究方向为核技术及应用。
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1 南京航空航天大学, 南京 211106)])]), Author(id=1179500629887173549, tenantId=1146029695717560320, journalId=1146123346816638986, articleId=1147999680086139506, orderNo=3, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1179500629958476719, tenantId=1146029695717560320, journalId=1146123346816638986, articleId=1147999680086139506, authorId=1179500629887173549, language=EN, stringName=Zeliang WANG, firstName=Zeliang, middleName=null, lastName=WANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1 Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China
2 Nanjing Tech University, Nanjing 211816, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1179500630461793211, tenantId=1146029695717560320, journalId=1146123346816638986, articleId=1147999680086139506, authorId=1179500630314992567, language=CN, stringName=程璨, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1 南京航空航天大学, 南京 211106
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2017,128:237-248., articleTitle=Applying Monte-Carlo simulations to optimize an inelastic neutron scattering system for soil carbon analysis, refAbstract=null)], funds=[Fund(id=1179500632890295258, tenantId=1146029695717560320, journalId=1146123346816638986, articleId=1147999680086139506, awardId=12105143, language=CN, fundingSource=国家自然科学基金(12105143), fundOrder=null, country=null), Fund(id=1179500632957404123, tenantId=1146029695717560320, journalId=1146123346816638986, articleId=1147999680086139506, awardId=42374226, language=CN, fundingSource=国家自然科学基金(42374226), fundOrder=null, country=null), Fund(id=1179500633053873116, tenantId=1146029695717560320, journalId=1146123346816638986, articleId=1147999680086139506, awardId=2023YFF0717003, language=CN, fundingSource=国家重点研发计划(2023YFF0717003), fundOrder=null, country=null), Fund(id=1179500633120981981, tenantId=1146029695717560320, journalId=1146123346816638986, articleId=1147999680086139506, awardId=20232BAB201043, language=CN, fundingSource=江西省自然科学基金项目(20232BAB201043), fundOrder=null, country=null), Fund(id=1179500633192285150, tenantId=1146029695717560320, journalId=1146123346816638986, articleId=1147999680086139506, awardId=20232BCJ23006, language=CN, fundingSource=江西省自然科学基金项目(20232BCJ23006), fundOrder=null, country=null), Fund(id=1179500633280365535, tenantId=1146029695717560320, journalId=1146123346816638986, articleId=1147999680086139506, awardId=KJ2024009, language=CN, fundingSource=江苏省市场监督管理局科技计划项目(KJ2024009), fundOrder=null, country=null), Fund(id=1179500633339085792, tenantId=1146029695717560320, journalId=1146123346816638986, articleId=1147999680086139506, awardId=KJ2024044, language=CN, fundingSource=江苏省市场监督管理局科技计划项目(KJ2024044), fundOrder=null, country=null), Fund(id=1179500633389417441, tenantId=1146029695717560320, journalId=1146123346816638986, articleId=1147999680086139506, awardId=KJ2023015, language=CN, fundingSource=江苏省市场监督管理局科技计划项目(KJ2023015), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1179500628956038034, tenantId=1146029695717560320, journalId=1146123346816638986, articleId=1147999680086139506, xref=1, ext=[AuthorCompanyExt(id=1179500628964426643, tenantId=1146029695717560320, journalId=1146123346816638986, articleId=1147999680086139506, companyId=1179500628956038034, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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3 East China University of Technology, Nanchang 330013, China), AuthorCompanyExt(id=1179500629136393114, tenantId=1146029695717560320, journalId=1146123346816638986, articleId=1147999680086139506, companyId=1179500629119615896, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3 东华理工大学, 南昌 330013)])], figs=[ArticleFig(id=1179500631564895176, tenantId=1146029695717560320, journalId=1146123346816638986, articleId=1147999680086139506, language=EN, label=Fig. 1, caption=
Measurement device based on the AmBe neutron source and high-purity germanium, figureFileSmall=+nCF8QSS+GW3b08INXJpwA==, figureFileBig=v6lfHre1vdLYFIUoTfVYMQ==, tableContent=null), ArticleFig(id=1179500631623615433, tenantId=1146029695717560320, journalId=1146123346816638986, articleId=1147999680086139506, language=CN, label=图1, caption=
基于AmBe中子源和高纯锗的测量装置, figureFileSmall=+nCF8QSS+GW3b08INXJpwA==, figureFileBig=v6lfHre1vdLYFIUoTfVYMQ==, tableContent=null), ArticleFig(id=1179500631678141386, tenantId=1146029695717560320, journalId=1146123346816638986, articleId=1147999680086139506, language=EN, label=Fig. 2, caption=
Instantaneous gamma spectra and fitting peaks of the sample, figureFileSmall=xQu3gw6UndzLa3ziqLaPiQ==, figureFileBig=Jd+WDRl+K7oW8O6nFrNp0w==, tableContent=null), ArticleFig(id=1179500631757833163, tenantId=1146029695717560320, journalId=1146123346816638986, articleId=1147999680086139506, language=CN, label=图2, caption=
样品瞬发伽马能谱及其拟合结果, figureFileSmall=xQu3gw6UndzLa3ziqLaPiQ==, figureFileBig=Jd+WDRl+K7oW8O6nFrNp0w==, tableContent=null), ArticleFig(id=1179500631875273676, tenantId=1146029695717560320, journalId=1146123346816638986, articleId=1147999680086139506, language=EN, label=Fig. 3, caption=
Thermal neutron spectra at the sample and reaction cross-section of the Er element, figureFileSmall=/Bxv5jutapbukZSVaFxC4A==, figureFileBig=lO2RrpMtT/KyM8fmoTX5lg==, tableContent=null), ArticleFig(id=1179500631963354061, tenantId=1146029695717560320, journalId=1146123346816638986, articleId=1147999680086139506, language=CN, label=图3, caption=
样品内的中子能谱和各能量下的反应截面, figureFileSmall=/Bxv5jutapbukZSVaFxC4A==, figureFileBig=lO2RrpMtT/KyM8fmoTX5lg==, tableContent=null), ArticleFig(id=1179500632013685710, tenantId=1146029695717560320, journalId=1146123346816638986, articleId=1147999680086139506, language=EN, label=Fig. 4, caption=
Relationship between modified characteristic peak area and sample mass, figureFileSmall=57bvBxPQJ6lulk2Ca2pY6A==, figureFileBig=FBd8mTOjWGVjYqI1bzVrBA==, tableContent=null), ArticleFig(id=1179500632093377487, tenantId=1146029695717560320, journalId=1146123346816638986, articleId=1147999680086139506, language=CN, label=图4, caption=
修正后特征峰面积与样品质量关系, figureFileSmall=57bvBxPQJ6lulk2Ca2pY6A==, figureFileBig=FBd8mTOjWGVjYqI1bzVrBA==, tableContent=null), ArticleFig(id=1179500632147903440, tenantId=1146029695717560320, journalId=1146123346816638986, articleId=1147999680086139506, language=EN, label=Table 1, caption=
Gamma-ray energy and cross-section of 167Er(n,γ)168Er thermal neutron capture reaction
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| 伽马射线能量/keV | 反应截面/b |
| 184.3 | 56.0 |
| 198.3 | 29.9 |
| 284.6 | 13.7 |
| 815.9 | 42.5 |
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167Er(n,γ)168Er热中子俘获反应伽马射线能量及截面
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| 伽马射线能量/keV | 反应截面/b |
| 184.3 | 56.0 |
| 198.3 | 29.9 |
| 284.6 | 13.7 |
| 815.9 | 42.5 |
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Parameters of the sample
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| 样品编号 | 样品直径(cm)×高(cm) | 铒(Er)元素质量/g |
| 1 | 2.5×4.5 | 38 |
| 2 | 3.2×4.5 | 77 |
| 3 | 4.0×4.5 | 102 |
| 4 | 5.0×4.5 | 188 |
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样品参数
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| 样品编号 | 样品直径(cm)×高(cm) | 铒(Er)元素质量/g |
| 1 | 2.5×4.5 | 38 |
| 2 | 3.2×4.5 | 77 |
| 3 | 4.0×4.5 | 102 |
| 4 | 5.0×4.5 | 188 |
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Neutron fluxes and reaction rates of the Er under different reactions
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| 反应类型 | 中子通量/cm-2 | 反应率 |
| 热中子俘获反应 | 4.52×10-5 | 1.9×10-27 |
| 快中子非弹性散射反应 | 1.72×10-4 | 2.53×10-30 |
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Er元素在不同反应下的中子通量和反应率
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| 反应类型 | 中子通量/cm-2 | 反应率 |
| 热中子俘获反应 | 4.52×10-5 | 1.9×10-27 |
| 快中子非弹性散射反应 | 1.72×10-4 | 2.53×10-30 |
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Characteristic peak area and thermal neutron fluxes
, figureFileSmall=null, figureFileBig=null, tableContent=
| 样品编号 | 初始特征峰面积 | 热中子通量/cm-2 | 探测效率 | 修正后的特征峰面积 |
| 1 | 0.84×103 | 4.52×10-5 | 8.26×10-3 | 0.84×103 |
| 2 | 1.64×103 | 3.93×10-5 | 7.93×10-3 | 1.97×103 |
| 3 | 1.61×103 | 3.51×10-5 | 7.65×10-3 | 2.24×103 |
| 4 | 2.85×103 | 3.22×10-5 | 7.43×10-3 | 4.45×103 |
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样品测量特征峰面积和热中子通量
, figureFileSmall=null, figureFileBig=null, tableContent=
| 样品编号 | 初始特征峰面积 | 热中子通量/cm-2 | 探测效率 | 修正后的特征峰面积 |
| 1 | 0.84×103 | 4.52×10-5 | 8.26×10-3 | 0.84×103 |
| 2 | 1.64×103 | 3.93×10-5 | 7.93×10-3 | 1.97×103 |
| 3 | 1.61×103 | 3.51×10-5 | 7.65×10-3 | 2.24×103 |
| 4 | 2.85×103 | 3.22×10-5 | 7.43×10-3 | 4.45×103 |
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Results of precision and accuracy
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| 编号 | 特征峰面积 | 推测的样品值/g | 相对标准偏差/% | 相对误差/% |
| 1 | 2 338 | 155.2 | 3.65 | 3.47 |
| 2 | 2 526 |
| 3 | 2 328 |
| 4 | 2 470 |
| 5 | 2 472 |
), ArticleFig(id=1179500632772854745, tenantId=1146029695717560320, journalId=1146123346816638986, articleId=1147999680086139506, language=CN, label=表5, caption=
精密度与准确度试验结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 编号 | 特征峰面积 | 推测的样品值/g | 相对标准偏差/% | 相对误差/% |
| 1 | 2 338 | 155.2 | 3.65 | 3.47 |
| 2 | 2 526 |
| 3 | 2 328 |
| 4 | 2 470 |
| 5 | 2 472 |
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