1995年 第12卷 第3期
本文简要评述了中能重离子碰撞中可能存在的奇异密度分布形状──气泡核和环形核的形成，并论述了实验观测方面的可能特征． Possible existence of the exotic density shapes-the formation of nuclear bubbles and rings-in the domain of intermediate energy heavy ion collisions have been briefly reviewed. Some experimental consequences were dicussed.
本文简述了新重丰中子同位素２３９Ｐａ的首次合成和鉴别，并测定其半衰期为１０６±３０ｍｉｎ． This paper reports that the new heavy neutron-rich isotope 239Pa has been observed for the first time and its half life has been determined to be 106±30min.
本文对高能核核碰撞中相对论性α粒子的双温度发射现象提出了一种解释，给出了α粒子的角分布，并与２．１ＤｅＶ／ｕ１６Ｏ和１．７ＧｅＶ／ｕ５６Ｆｅ与核乳胶相互作用的有关实验结果作了比较． An explanation on the two-temperature emission of relativistic a particles in high energy nucleus-nucleus collsisions is presented. The angular distributions of a particles are obtained and compared with the exprimental results of 2. 1GeV/u 16O-Em and 1. 7GeV/u 56Fe-Em interactions.
本文用瓜分客体的方法，得到了１６Ｏ和３２Ｓ碎裂中碎片电荷分布的条件矩．结果表明条件矩间呈对数关联，且对关联行为本身来说，电磁离解和核反应相应的结果类似，氧核与硫核相应的结果类似．计算结果与３．７和２００ＧｅＶ／ｕ１６Ｏ及２００ＧｅＶ／ｕ３２Ｓ与核乳胶作用的实验数据符合． The conditional moments of the charge distributions of the projectile fragments in 16O and 32S fragmentation behavior are botanied by using a partition method. The logarithmic correlations between the conditional are observed. The electromagnetic dissociations are similar to nuclear reactions for correlation behaviour itself and the correlation her behaviours for oxygen nuclei are in agreement with that for sufphur nuclei. The calculated results in agreement with the...
原子核结团现象是原子核运动中普遍存在的现象，本文评述了原子核结团模型研究的进展和结团思想在核结构性质、核衰变、核反应方面引人注目的发展． Clustering phenomena exist in all the field of the nucleus. In this paper the development of the cluster model and its use in nuclear structure, nuclear radioactivity, and nuclear reactions are described.
本文介绍了在考虑核的壳效应、对效应和集团效应等性质时对费米气体能级密度公式作唯象修正所产生的几种能级的唯象表示式． A discussion on the neuclear level desity phenomenological formulae originates from the Fermi-gas model formula considering the shell effects,pairing correlations and collectivity of the nuclei.
本文采用直接作用模型和扭曲波玻恩近似（ＤＷＢＡ）理论，计算了１１Ｂ的２．１４ＭｅＶ激发态在入射中子能量为７：５４～２０．０ＭｅＶ的非弹性散射的积分截面和角分布，计算结果与评价的实验值进行了比较，符合较好．对实验上所缺乏的数据作出了理论预期值． BY using the direct reaction mode and the DWBA theory, We calculate the integrated sections and angular distributions of inelastic neutron scattering of 11B(n, n )11B 2. 14MeV excited state in energy range from 7. 54MeV to 20. 0MeV. The calculated results are comparaed with the experimental values, and a good agreement has been obtained. The theory values are given for absent experimental data.
近年来，全反射Ｘ荧光分析技术获得突破性进展．从表面及近表层微量、超微量元素分析发展到结构、深度及深度分布的探测．其检测限已达ｐｇ级，硅片杂质检测限达１０８ａｔｏｍｓ／ｃｍ２．文章介绍了该技术的基本理论、特点、国内外最新发展情况及对其今后发展的展望． In recent years a remarkable development has been achieved in total-reflection X-ray fluorescence (TXRF) analysis techniques. The trace and ulera-trace analysis of elements has been made out from surface and near-surface layer to depth and depth profiling as well as layered structures. Absolute detectoion limits has come to pg-level and the least detection limits of 108atoms/cm2 can be reached for surface contamination on St wafers. The basic theory, characteristic, recent...
本文简要介绍近地空间辐射环境及其对飞行器材料、电子器件的影响．还扼要介绍了空间辐照效应的研究动态.This paper briefly dicusses the radiation environment in near-earth space and it s influences on material, and electronic devices using in space airship, also, the research developments in space radiation effects are introduced.
辐射涂层固化技术是一门有许多优点的高新技术，实现辐射团化首先需解决有关的化学问题．本文介绍了有关该领域的设备、工艺及获得的新进展．The radiation curing is a new and advanced technology which has some advantages, several products were made. Equipment of the field has been improved.
在中国原子能科学研究院的串列式静电加速器上建立了传送短寿命核的转轮装置，可用于鉴别和研究寿命短至几秒的核素．该装置已用于新的缺中子核素９０Ｒｕ的鉴别及其半衰期和衰变γ的测量． A wheel device for transporting short-lived nuclei has been constructed at the HI-13 tandem accelerator of CIAE. The device can be used in the identification and investigation of nuclides with life-times as short as a few seconds. With the aid of this device a new nutron-deficient nuclide 90Ru has been identified. Its half-life and decay γ-rays have been measured.
本文简要介绍数值模拟计算技术在核测井领域中的应用，理论计算数据与实验测量数据一致，表明理论计算在核测井中的地位越来越重要． The application of the numerical simulating methods in the nuclear well Logging is presented. Practical examples show that the data calculated with theoritical methods agree with the experimental data. This showes the great importance of the theoritical methods in the nuclear well Logging.
本文介绍了厚度为５．２、６、７和１０μｍ，有效面积为２８～１５４ｍｍ２的超薄型外延硅ｄＥ／ｄＸ探测器（对于８．７８ＭｅＶａ粒子的能损ΔＫ的分辨为４８～７６ｋｅＶ）及其研制工艺、主要用途、测试结果及在核物理实验中的应用． The epitaxial st-dE/dX surface barrier detectors with an active area of 28～154mm2 and thickness of 5. 2～10μm have been developed. This kind of detector can be used for measuring α-particle, proton with low energy and for distinguishing particles...
用气体放电法研究含氘金属异常现象时，发现有Ｘ射线产生．因此用吸收法、特征Ｘ射线法和ＮａＩ闪烁计数器测量了Ｘ射线能量，用７Ｌｉ热释光片估测了Ｘ射线强度．吸收法测出的Ｘ射线平均能量为（２６．９±２．２）ｋｅＶ和ＮａＩ闪烁计数器测出的（２６．０±２．４）ｋｅＶ单能Ｘ射线在测量误差内相符． X rays were observed to create when the anomalous phenomenon in the metal loaded with deuterium studied by the gas-discharge method. Therefore the X-ray energy spectra were measured by the absorption method, the specific X-ray approach and the NaI scintillation counter, while X-ray intensity was estimated by using 7Li thermoluminescent foils. The X-ray average energy measured by the absorption method is 27. 6±2. 1keV,whlch is fitted within the error extent to 26. 0±2. 4keV monoenergetic Xrays