最新刊期
      2020 年 第 0 卷 0 期

        综述

      • Tsien Yun-lung
        1980, 03(2)
        摘要：The developments of cyclotrons are outlined. The principle and characteristics of AVF cyclotrons are discribed. The requirements and possibility for production of short-lived, neutron deficient radionuclides, for fast neutron therapy and activation analysis using cyclotrons are discussed briefly.  
          
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        发布时间：2022-08-16

        科研成果报告

      • Nuclear Reaction Group, Institute} of Atomic Energy, Academia Sinica
        1980, 03(2)
        摘要：The concentration and distribution of boron diffused in four groups of high purity silicon samples, which were manufactured under different technological conditions were determined by 11B (p, α)8Be* reaction.  
          
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        发布时间：2022-08-16
      • Cui Huan-hua,Wang Shi-cheng,Huang Mao-rong
        1980, 03(2)
        摘要：A method of determination of the relative sensitivities of cellulose nitrate track detector for the registration of protons is presented. By this method the optimum etching condition of the fuji film has been found. Under this etching condition the sensitivity and the efficiency of the fuji film for the registration of protons have been determined.  
          
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        发布时间：2022-08-16
      • Wang Wu-yu,Lin Wen-ye,Xu Shuang,Zhang Biao
        1980, 03(2)
        摘要：This paper describes a portable three-channel spectrometer, by which you can read the contents of Radium (Uranium) -Thorium directly. In this instrument pulse amplitude analysers are designed with CMOS devices. By using automatic spectral stabilization system, analogue calculation method and automatic compton stripping, the instrument has a set of features of advanced existing spectrometers. In addition, the construction of the instrument is simple, compact, the weight is light and it is easy to operate for the field survey.  
          
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        发布时间：2022-08-16
      • Zhao Xia-ling,Guo Zi-li,Liu Jing-zhi,Deng Qiao-qing
        1980, 03(2)
        摘要：D-glucose-6-14C was prepared by chemical synthesis from 14C-barium carbonate. The yield was 18.3%, with specific activity of 4.6mCi/mM. The product was of high purity. The labeled position of l4C atom was proved by the degradation method. The stability of product in storing was also studied.  
          
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        发布时间：2022-08-16
      • Gu Guang-wei
        1980, 03(2)
        摘要：These studies deal with the induced mutation of short straw wheat with 60Co γ-rays. We used to use these doses of induced mutation that standard deviation of M1 plant height was twice or three times the controls'. Thus we had been selecting different mutants of 50-120 cm in M2 generation. Most mutants occured in unstable form except a little mutants which were stable. The unstable form of mutants probably was ascri bable to reverse mutation of cells in the process of growth and development. The results in the experiment of induced mutation show that using 60Co γ-rays. is effective means for the purpose of inducing useful mutants of short straw  
          
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        发布时间：2022-08-16
      • Li Xi-qi,Fan Xm-shun
        1980, 03(2)
        摘要：This paper presents a method for preparing labelled sand by pouring 113mIn eluate over treated sand sample, dripping some sodium hydroxide solution into it, stiring throughly under optimum condition of the solution (pH=7 as indicated by our experiments) so as to make 113mIn (OH) 3 adsorbed on sand grain surface and finally obtaining 113mIn labelled sand for experimental use through decanting waste solution. The labelling efficiency is in the range of 67-99%, the specific activity 200-1300μCi/g and the dismantling efficiency less than 5%.  
          
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        发布时间：2022-08-16
      • Neutron laboratory, Nanjing University
        1980, 03(2)
        摘要：In the process of the concrete production, water and cement must be kept at suitable proportion; therefore, in order to adjust the quantity of water required, we must measure the moisture of the sand at any moment. The neutron moisture gauge may fulfil this task. The precision of measuring moisture is <0.4% (weight) . In this paper the neutron moisture gauge for concrete mixer and its calibrations and applications are reported.  
          
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        发布时间：2022-08-16
      • Huang Yao-zhang,Wang Yong-xin,Wu Ya-nong,Zhang Jian-shi,Wu Bo-hui
        1980, 03(2)
        摘要：The 99mTc-gluconate complex renal scanning agent produced by the electrolytic method was used in the animal experiment and in preliminary clinical study. It gave a better renal scintigraphy. No side effects were observed during our clinical uses. The method is simple and easy to master as compared with other types of 99mTc labeled complex renal scanning agent.  
          
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        发布时间：2022-08-16
      • Lin Fen-zhi,Shen De-fu
        1980, 03(2)
        摘要：Tritiated adenosine-5-triphosphate was prepared by heterogeneous catalytical isotopic exchange in solution with tritium gas. The specific activity of product was 27 Ci/mmol with radiochemical purity over 95%.  
          
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        发布时间：2022-08-16
      • 重华 张
        1980, 03(2)
        摘要：上海电子管厂和57607部队共同研制成功了一种新型射线探测器件——小型卤素计数管，这是一种盖革计数管。它的阴极是用薄壁不锈钢管做成，阳极是用不锈钢丝做成，内充高纯氖气，并充高纯溴作为猝灭气体，它的结构如图1所示。  
          
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        发布时间：2022-08-16

        工作简报

      • Xu Jin-long,Xie Kuan-zhong,Pan Hong-jin,Liu Cun-xiang
        1980, 03(2)
        摘要：This paper provides a method of rapid non-destructive determination of some major elements in igneous rocks. The method is useful for exploration of mineral. Our results agree with those of chemical analysis within experimental error.  
          
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        发布时间：2022-08-16

        知识介绍

      • 慧顺 毛
        1980, 03(2)
        摘要：自1968年恰巴克（G. Charpak）在正比计数管基础上首次提出多丝正比室（下略为丝室）以来，至今仅十年时间，但它已成为高能物理实验必不可少的探测器，并广泛应用于其他领域。本文介绍丝室在基本粒子、核物理、天文学及宇宙线物理等方面的应用。着重介绍目前在国外把多丝正比室应用于医学和生物学中的情况（丝室在X射线、正电子、质子、中子照像等诊断学中的应用）。  
          
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        发布时间：2022-08-16

        书评

      • 家龙 朱
        1980, 03(2)
        摘要：ICRP第26号出版物是该组织最新的辐射防护基本建议书，于1977年1月通过，用以取代此前的基本建议书——第9号出版物。本文试图评述新建议书的主要内容与特征，将从它的基本考虑方法、剂量当量极限和防护标准等三方面加以讨论。  
          
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