ION BEAM AND SIMS ANALYSIS ON DAMAGE OF GaAs DOPED WITH N^＋

ＩＯＮ　ＢＥＡＭ　ＡＮＤ　ＳＩＭＳ　ＡＮＡＬＹＳＩＳ　ＯＮ　ＤＡＭＡＧＥ　ＯＦ　ＧａＡｓ　ＤＯＰＥＤ　ＷＩＴＨ　Ｎ~＋ＷｕＸｉａｏｓｈａｎ；ＬｉｎＺｈｅｎｊｉｎ；ＪｉＣｈｅｎｇｚｈｏｕ；ａｎｄＹａｎｇＸｉｚｈｅｎ（ＤｅｐａｒｔｍｅｎｔｏｆＰｈｙｓｉｃ?..     

DETERMINATION OF SUPERFICAL ABSORBED DOSE FROMEXTERNAL EXPOSURE OF WEAKLY PENETRATING RADEATIONS

ＤＥＴＥＲＭＩＮＡＴＩＯＮＯＦＳＵＰＥＲＦＩＣＡＬＡＢＳＯＲＢＥＤＤＯＳＥＦＲＯＭＥＸＴＥＲＮＡＬＥＸＰＯＳＵＲＥＯＦＷＥＡＫＬＹＰＥＮＥＴＲＡＴＩＮＧＲＡＤＥＡＴＩＯＮＳＣｈｅｎＬｉｓｈｕ（陈丽姝）（ＣｈｉｎａＩｎｓｔｉｔｕｔｅｏｆＡｔｏｍｉｃＥｎ...     

SEASONAL CHANGES OF PROGESTERONE AND TESTOSTERONE CONTENTS IN HAIR OF GIANT PANDAS

ＳＥＡＳＯＮＡＬＣＨＡＮＧＥＳＯＦＰＲＯＧＥＳＴＥＲＯＮＥＡＮＤＴＥＳＴＯＳＴＥＲＯＮＥＣＯＮＴＥＮＴＳＩＮＨＡＩＲＯＦＧＩＡＮＴＰＡＮＤＡＳＧｕｏＤａｚｈｉ（郭大智）；ＬｉｕＸｉａｎｙｉ（刘显义）；ＣｈｅｎＦａｉｎ（陈发菊）；ＳｏｎｇＸｕｅｈｕａ（...     

DEPTH PROFILING OF DEUTERIUM IN Al2O3

ＤＥＰＴＨ　ＰＲＯＦＩＬＩＮＧ　ＯＦ　ＤＥＵＴＥＲＩＵＭ　ＩＮ　Ａｌ_２Ｏ_３￥ＴａｎＸｉａｏｈｕａ（谈效华）；ＬｕｏＳｉｗｅｉ（罗四维）；ＳｏｎｇＺｈｅｍｉｎｇ（宋哲明）（ＩｎｓｔｉｔｕｔｅｏｆＡｐｐｌｉｅｄＥｌｅｃｔｒｏｎｉｃｓｏｆＣＡＥＰ，Ｃｈｅ...     

BODY SURFACE EXPOSURE DISTRIBUTION OF EXAMINEES RECEIVED UPPER G．I．T．X－RAY EXAMINATION

ＢＯＤＹ　ＳＵＲＦＡＣＥ　ＥＸＰＯＳＵＲＥ　ＤＩＳＴＲＩＢＵＴＩＯＮ　ＯＦ　ＥＸＡＭＩＮＥＥＳ　ＲＥＣＥＩＶＥＤ　ＵＰＰＥＲ　Ｇ．Ｉ．Ｔ．Ｘ－ＲＡＹ　ＥＸＡＭＩＮＡＴＩＯＮＦｅｎｇＤｉｎｇｈｕａ（冯定华）ａｎｄＣｈｅｎｇＱｉｊｕｎ（程祺钧）（Ｆａｃｕ...     

STUDY ON OCCURENCE FORM OF PLATINUM IN XINJIE Cu－Pt DEPOSIT BY NAA AND SCANNING PROTON MICROPROBE

ＳＴＵＤＹＯＮＯＣＣＵＲＥＮＣＥＦＯＲＭＯＦＰＬＡＴＩＮＵＭＩＮＸＩＮＪＩＥＣｕ－ＰｔＤＥＰＯＳＩＴＢＹＮＡＡＡＮＤＳＣＡＮＮＩＮＧＰＲＯＴＯＮＭＩＣＲＯＰＲＯＢＥＬｉＸｉａｏｌｉｎ，ＺｈｕＪｉｅｑｉｎｇ，ＧｕＹｉｎｇｍｅｉ，ｗｕＸｉａｎＫａｎｇ（Ｓ...     

LARGE VOLUME IONIZATION CHAMBER USED AS LABORATORY REFERENCE FOR LOW ENERGY X－RAY MEASUREMENT

ＬＡＲＧＥ　ＶＯＬＵＭＥ　ＩＯＮＩＺＡＴＩＯＮ　ＣＨＡＭＢＥＲ　ＵＳＥＤ　ＡＳ　ＬＡＢＯＲＡＴＯＲＹ　ＲＥＦＥＲＥＮＣＥ　ＦＯＲ　ＬＯＷ　ＥＮＥＲＧＹ　Ｘ－ＲＡＹ　ＭＥＡＳＵＲＥＭＥＮＴＹａｎｇＧｕｏｓｈａｎ；ＸｕｅＹｏｎｇｋｕａｎｄＣａｉＦａｎｇｏ...     

EFFECT OF TOTAL IRRADIATION DOSE ON MOSFETs／SOI

ＥＦＦＥＣＴＯＦＴＯＴＡＬＩＲＲＡＤＩＡＴＩＯＮＤＯＳＥＯＮＭＯＳＦＥＴｓ／ＳＯＩＧａｏＪｉａｎｘｉａ（高剑侠）；ＹａｎＲｏｎｇｌｉａｎｇ（严荣良）；ＲｅｎＤｉｙｕａｎ（任迪远）（ＸｉｎｊｉａｎｇＩｎｓｔｉｔｕｔｅｏｆＰｈｙｓｉｃｓ，ｔｈｅＣｈｉｎｅ...     

MEASUREMENT OF NEUTRON SPECTRA FROM THICK Be TARGET BOMBARDED WITH DEUTERONS

ＭＥＡＳＵＲＥＭＥＮＴＯＦＮＥＵＴＲＯＮＳＰＥＣＴＲＡＦＲＯＭＴＨＩＣＫＢｅＴＡＲＧＥＴＢＯＭＢＡＲＤＥＤＷＩＴＨＤＥＵＴＥＲＯＮＳＷａｎｇＸｉａｏｚｈｏｎｇ（王效忠）；ＢａｉＸｉｘｉａｎｇ（白希祥）；ＬｉＡｎｌｉ（李安利）；ＬｉｕＷｅｉｐｉｎｇ（柳...     

广东核电站ATWS事故分析研究

针对广东核电站给出了具有包络意义的三类ＡＴＷＳ分析结果，它们是：失去主给水ＡＴＷＳ（ＬＯＦＷ－ＡＴＷＳ）、失去非应急交流电源ＡＴＷＳ（ＬＯＮＥＰ－ＡＴＷＳ）、控制棒失控提升ＡＴＷＳ（ＵＣＲＷ－ＡＴＷＳ），并与广东最终安全分析报告所提供的ＡＴＷＳ分析做了比较，最后对其中后果较为严重的ＬＯＦＷ－ＡＴＷＳ作了部分参数的敏感性分析，并对低于３０％功率下的ＬＯＦＷ－ＡＴＷＳ作了讨论。     

X射线荧光光谱分析法测定235U冶金炉渣中微量U

针对＾２３５Ｕ冶金炉查建立了微量Ｕ的分析方法。利用Ｘ射线荧光分析的薄试样制备技术,测定了＾２３５Ｕ冶金炉渣酸浸溶液中的Ｕ,用标准添加法对酸浸溶液余渣中的Ｕ进行了测定,给出了＾２３５Ｕ冶金炉渣中Ｕ的总量,并与流动注射法,高效液相色谱法的结果进行了比较,结果一致。     

分段γ扫描自吸收校正法分析残渣和废物中的铀,钚含量

叙述了用于非破坏分析残渣和废物中的铀、钚含量的分段γ扫描自吸收校正法（简称分段γ扫描法）。研究了分段γ扫描测量核工厂实物盘点中含铀、钚各类非均匀样品的刻度方法，分析了各种测量条件对γ自吸收校正及测量结果的影响。本方法与化学破坏分析法进行了比对分析，结果表明分段γ扫描自吸收校正法与化学破坏分析法的偏差为－３．６％，在分析误差范围内符合得很好。本分析方法成功地应用于核工厂实物盘点现场分析，测量了４类中低密度含铀、钚的残渣和废物样品，测量结果的不确定度为５％。     

分段γ扫描标样的非破坏性分析法检验

利用非破坏性分析法检验用于刻度分段γ扫描（SGS）装置的标样。采用分段γ扫描技术测量了8个装有U₃O₈的铀标样、8个装有PuO₂的钚标样。检测铀标样和钚标样装钚量的准确性以及铀标样中U₃O₈和钚标样中PuO₂与介质混合的均匀性。检测结果表明：SGS标样的装料量的准确性好于1％，标样中料样和介质混合的均匀性好于3%。     

Development of PRIDE UNDA for safeguards application

In order to enhance the safeguardability of a pyroprocessing facility, the Korea Atomic Energy Research Institute (KAERI) has been endeavoring to develop more efficient and effective safeguards technologies for nuclear material accountancy (NMA), process monitoring, and containment and surveillance (C/S). NMA has two components: destructive analysis (DA) and non-destructive assay (NDA). Although DA is more accurate, it is typically time-consuming and cost-intensive. NDA, on the other hand, can provide reasonable accuracy on a real-time or near-real-time basis, which maximizes the utilization efficiency of a facility. In this study, the PRIDE (PyRoprocessing Integrated inactive DEmonstration) UNDA (unified non-destructive assay) was developed for testing NDA techniques at PRIDE, a demonstration facility within KAERI for integrated pyroprocessing using depleted uranium and surrogate materials. Each component of the PRIDE UNDA (i.e., neutron, gamma-ray, and mass measurement systems) was characterized and calibrated using calibration sources and standard weights as well as nuclear material used in the facility (depleted uranium). It is expected that in the near future, the PRIDE UNDA will be installed and tested with various types of process materials.     

O钝化对铀铌合金电化学腐蚀行为的影响

采用电化学方法研究了铀铌合金经CO（0.3MPa)钝化前后的电化学耐蚀性能,并用X射线光电子能谱（XPS）分析了铀铌合金经CO钝化后表面层的组成。研究结果表明：铀铌合金经CO钝化后表面生成了致密的钝化膜,这层钝化膜增大了腐蚀过程的阳极阻力,提高了铀铌合金的电化学耐蚀性能。     

CZT探测器测量核燃料组件铀丰度实验研究

采用CZT探测器、数字谱仪、准直器等组成了1套便携式CZT探测器铀丰度测量装置。该装置可对燃料组件铀丰度进行测定,以便确定相应铀产品丰度符合规定要求。实验研究中,对几类燃料组件丰度进了测量,建立了CZT探测器测量燃料组件铀丰度的方法。现场测量结果表明,铀丰度测量结果相对偏差小于3%,方法简单可靠,装置简便,能满足核材料保障监督和核设施现场测量中的需求。     

铀矿伽马能谱测井核脉冲信号数字化处理技术

在铀矿勘查中,可采用伽马能谱测井获取钻孔地层的铀、钍含量。相对于传统的模拟构架,基于数字化核脉冲信号处理技术构建的伽马能谱测井仪具有计数率高、信号噪声低和稳定性好等优点。通过采用核脉冲信号数字化处理技术,实现了伽马能谱的数字化采集,在放射性勘查模型井上进行了测试。混合模型的能谱测量铀、钍含量与标称含量的误差均小于5%,符合铀矿伽马能谱测井相关规范要求。     

An application of gamma/X-ray/weighing methods for the complete in field assay of nuclear materials

The simultaneous determination of the isotopic vector and mass fraction from a single gamma/X-ray spectrum would represent an important step forward allowing the determination of the mass of both uranium and plutonium bearing materials more easily, reliably and accurately than existing NDA methods. The availability of a complete NDA assay on site would strongly reduce the necessity for shipment and further expensive analyses of samples, improve the timeliness of measurements and reduce the cost of Safeguards sample analyses.The paper describes a modular programming approach aiming at the implementation of a software package holding all different gamma/X-ray and weighing (GXW) subprograms for analysis of special nuclear materials (liquid U, solid U, liquid Pu, solid Pu, MOX).     

一个在堆中子活化分析测量中多用途的自动换样器

用缓发中子计数法测铀时,每隔90秒左右就要换一次样品,用堆中子短照作纯仪器多元素活化分析时每隔5—6分钟也要更换一次样品,即使在测量长半衰期核素时,每天也要更换几十次样品。显然,靠人工换样,对工作人员不仅劳动强度大而且还要受到较强     

燃料元件厂可燃含铀废物γ扫描装置系统软件的研制

本文叙述了燃料元件厂可燃合铀废物γ扫描装置系统软件的研制成果。较详尽地分析了软件的结构、用户界面、能谱获取和数据处理以及刻度曲线的实现方法。刻度实验和工厂的实际运行表明,系统的研制成功既为工厂提供了现场使用的原型装置软件,也为开发元件制造厂和后处理厂其他无损分析装置的系统软件打下了基础。