最新刊期
      卷 0 ， 期 0 ， 2020
      • Weixin Ye
        Vol. 12, Issue 7, (1989)
        摘要：This review presents the influences of hybridoma techniques on the development of radioimmunoassay, radioimmunoimaging and radioimmunotherapy in nuclear medicine.  
        关键词：Hybridoma techniques;Monoclonal antibodies;Radioimmunoassay;Radioimmunoimaging;Radioimmunotherapy   
        10
        |
        13
        |
        0
        <HTML>
        <L-PDF><Meta-XML>
        <引用本文> <批量引用> 28340301 false
        发布时间：2022-08-16
      • 传琛 孙,成荣 卢,志宇 费,道生 袁,福家 杨
        Vol. 12, Issue 7, (1989)
        摘要：一台美国国家静电公司 (NEC) 制造的、端电压为3MV的9SDH-2型串列加速器于1987年在复旦大学安装并投入运行. 本文叙述了机器本身以及在第一年运转中所出现的问题和经验. 加速器建立了三条束流管线: 一条是超高真空靶室系统, 用它已进行了A1 (100) 清洁表面的研究; 另一条是微米束系统, 已能提供2µm的质子束; 第三条为通用束线, 已用它研究了56Fe的核共振对KX射线产额的影响. 目前, 在该束线上还进行离子束分析, 如用8.8MeV He++进行高Tc超导体非卢瑟福散射实验等.  
        关键词：珠链式静电加速器;电荷交换负离子源;溅射负离子源;电荷交换室;超高真空室微束系统;弛豫   
        7
        |
        12
        |
        1
        <HTML>
        <L-PDF><Meta-XML>
        <引用本文> <批量引用> 28340324 false
        发布时间：2022-08-16
      • Zhongheng Song
        Vol. 12, Issue 7, (1989)
        摘要：Starting with energy gain equation, the relations among various parameters in accelerating structure operated on both steady state and pulse state in both standing wave (SW) and travelling wave (TW) electron linac are discussed.  
        关键词：Standing wave;Travelling wave;Steady state;Storage state   
        8
        |
        11
        |
        2
        <HTML>
        <L-PDF><Meta-XML>
        <引用本文> <批量引用> 28340300 false
        发布时间：2022-08-16
      • Jiahua Zhang,Borong Bao,Yuanxian Xia
        Vol. 12, Issue 7, (1989)
        摘要：Four series of ThO2 samples in pellet form have been irradiated in high flux reactor under various conditions. After cooling and dissolution of each sample separately, the interrelations between 233U, 232U, 233Pa, certain fission fragment nuclides and фf, фth have been determined. Based on these experimental results, the ranges of some physical parameters which might be useful to the design of Th-U nuclear reactor have been presented. Namely, 1. Ratio of fast neutron flux to thermal neutron flux, фf/фth<1;2. Intensity of thermal neutron flux, 5×1013<фth<2.5×1014（n/cm2）; 3. Ratio of thorium to uranium, 1<Th/U<80; 4. Ratio of fissionable fuel to non-fissionable fuel, 0.012<（235U＋233U）/(238U+232Th)<0.03.  
        关键词：Thorium;Uranium;Fission product;Nuclear fuel   
        8
        |
        13
        |
        1
        <HTML>
        <L-PDF><Meta-XML>
        <引用本文> <批量引用> 28340304 false
        发布时间：2022-08-16
      • Yongxian Wang,Junfa Qin,Yueliang Xiu,Shimin Wu,Liebao Yian,Jitao Du,Runie Gao
        Vol. 12, Issue 7, (1989)
        摘要：This work was to make use of the Chongming island as a high prevalence area of liver cancer and its uneven geographical distribution to study the relation between trace elements and high liver cancer incidence. Fe, Pb, Sr, Mn, Ti, Mo, Zn, Cu and Se contents in scalp hair of healthy adults from the areas with lower and higher cancer mortality respectively were determined and 100 pairs of case-control investigation was made. The selenium hair content of healthy adult on the island is in the range of 0.222-0.378 ppm. The average is about 0.309 ppm. This is lower compared with other places in China, wnich might indicate a selenium deficiency, one of the risk factors responsible for liver. cancer. The Mn, Fe and Mo hair content showed a geographical differences significantly and had a negative correlation with liver cancer Mortality. Results of the case-control study indicate Mn and Fe hair content from liver cancer patients were significantly lower than normals.  
        关键词：Liver cancer;Trace element;Se;Mn;Fe;Mo   
        7
        |
        14
        |
        0
        <HTML>
        <L-PDF><Meta-XML>
        <引用本文> <批量引用> 28340384 false
        发布时间：2022-08-16
      • Wenliang Zou,Jujing Zhang
        Vol. 12, Issue 7, (1989)
        摘要：The investigation on hereditary disease and congenital malformation, on the children below eleven years old and living in the surrounding area of the nuclear test site and control area is reported. The total prevalence rate of the ninteen kinds of hereditary disease and congenital malformation in both areas are 7.12‰ and 7.28‰, respectively. The prevalence rate of congenital foolishness in investigagion area is 0.64‰; while in control area, it is 0.54‰. There is no significant difference between the two areas. However, it is found that the prevalence rate of harelip in investigation area is higher than in control area, whereas the prevalence rate of congenital heart disease in control area is higher than in investigation area. As for the rests there is no significant difference. There is no significant difference between the two areas. So we have not observed that nuclear test in our country can cause hereditary disease and congenital malformation for the children who live in surrounding area, of the nuclear test site.  
        关键词：Nuclear test;Hereditary disease;Congenital malformation   
        8
        |
        15
        |
        1
        <HTML>
        <L-PDF><Meta-XML>
        <引用本文> <批量引用> 28340359 false
        发布时间：2022-08-16
      • Jinhe Sun,Jianying Gan,Xingming Li,Ziyuan Chen
        Vol. 12, Issue 7, (1989)
        摘要：The residue of 14C-carbofuran in water was very low though the application rate was five times of that in the common case.Only a small part of the 14C-residues in water were organic soluble products, in which most of them were carbofuran. The majority of 14C-residues recovered in soil, fish and plant （cargo rice, husk, straw and roots） were unextractable （bound） and the percentages of bound residues were 86.55%, 79.91% and 70.45%（73.26%, 67.90%, 64.22% and 76.41%）at harvest respectively The bound residues could be hydrolysed with HC1, and released significant amounts of the bound 14C. The percentages of 14C released from fish cargo rice, straw, roots, husk and soil at harvest were 91.60%, 82.13%, 30.47%, 24.69%, 18.67% and 17.30% respectively. Tne organic soluble portion of the 14C released in all items analysed were small, and in which, the parent compound carbofuran was found as the greatest in quantity and decreased with time, next came to 3-hydroxy-carbofuran, 3-keto-carbofuran and others （unknown） for soil. 14C in hydrolysed soil could be further released under high temperature distillation （330℃, 500℃ and 750℃）. Percentages of 14C released were 21.44% to 28.49%30 to 76 days after the treatment, among which, the majority was organic soluble 14C at 330℃, while 14CO2 was predominant at 500℃ and 750℃.  
        关键词：Bound residue;Carbofuran;Paddyrice;Fish   
        7
        |
        14
        |
        1
        <HTML>
        <L-PDF><Meta-XML>
        <引用本文> <批量引用> 28340379 false
        发布时间：2022-08-16
      • Baifen Shi,Shuqin Zhou,Jingpei Li,Jingsheng Zhu
        Vol. 12, Issue 7, (1989)
        摘要：Positron annihilation lifetime spectra were measured for the Hep-2 cell cultures treated with the interferon (3.6×107Iu/mg Pr.) and control cells. The positron lifetime spectra were resolved into three lifetime components. The clear difference of the long-lifetime components related to the pick-off annihilation of ortho positronium between the interferon affected cells and the control cells was observed. The result showed that τ3 in the interferon treated cells was longer than that in control cells, and I3 in the former was lower than that in the latter, but the product of τ3 I3 was augmented. As to free volume model, the result suggested that biological macromolecular conformation volume of the interferon affected cells was increased. The relation between such change and the anti-virus condition of the cell calls for more fuather studies.  
        关键词：Hep-2 cell;Interferon;Positron annihilation   
        9
        |
        13
        |
        0
        <HTML>
        <L-PDF><Meta-XML>
        <引用本文> <批量引用> 28340386 false
        发布时间：2022-08-16
      • Jingcheng Wang,Zichang Shao,Jialing Jin
        Vol. 12, Issue 7, (1989)
        摘要：The positron annihilation parameters increase initially with increasing reduction of thickness, then are saturated for the common samples of metals and alloys, so far as we have known. In studying Cu-Zn-A1 shape memory effect, however, we found no increase of S-parameter about 5% thickness reduction when the sample is cold-rolled. The anomaly may be due to the self-accommodating mechanism of martensite plates in initially deforming, not the sliding, thus resulting in no increase of defects to which positron are sensitive.  
        关键词：Positron annihilation;Shape memory effect;Copper-zincaluminum alloy   
        9
        |
        12
        |
        0
        <HTML>
        <L-PDF><Meta-XML>
        <引用本文> <批量引用> 28340397 false
        发布时间：2022-08-16
      • Qiliang Wang
        Vol. 12, Issue 7, (1989)
        摘要：This paper reports seasonal variations of environmental gamma radiation level measured by high pressure ionization chamber, scintillation radiometer and thermoluminescent dosimeter at different locations. The results measured showed that seasonal variations of environmental gamma radiation level at different sites ranged about from 0 to 27%.  
        关键词：Environment;Gamma radiation variation   
        8
        |
        14
        |
        0
        <HTML>
        <L-PDF><Meta-XML>
        <引用本文> <批量引用> 28340387 false
        发布时间：2022-08-16
      • Ling Wang
        Vol. 12, Issue 7, (1989)
        摘要：In this paper is described a method of simultaneous determination of the total alpha and total beta radioactive level in bodies of water. This method uses low background measuring apparatus with an anticoincidence shield and an Au-Si surface barrie detector. The samples are prepared using the vaporization method for one litre environmental water. The measurement sensitivity is 4.8×10-2Bq/1 for total alpha and 1.9×10-2Bq/1 for total beta. The lowest detection limit is 2.4×10-2Bq/1 for total alpha and 1.9×10-3Bq/1 for total beta.  
        关键词：Radioactive level in bodies of water;Total alpha and total beta level;Vaporization method for sample preparation;Determination by comparative method   
        9
        |
        14
        |
        0
        <HTML>
        <L-PDF><Meta-XML>
        <引用本文> <批量引用> 28340414 false
        发布时间：2022-08-16
      • Yali Zhao,Yizhong Wang,Zishu Wang,Wenyuan Chen,Maolun Zhou,Daoquan Xu,Shuyuan Zhang
        Vol. 12, Issue 7, (1989)
        摘要：The effect of 211At-tellurium colloid on the frequency of lymphocytes Ag-NORs culture in vitro was studied. The result showed that the alpha-radiation had no effect upon the frequency of Ag-NORs of lymphocytes which had been stimulated by PHA and entered in succession proliferation cycle of cell; but for the lymphocytes in transforming immediately being stimulated by PHA, in low irradiation does, the frequency of Ag-NORs was obviously increased, it seemed to be capable of stimulating the activation of rRNA gene and increasing transcription, while in high irradiation dose, it had some restraining effect.  
        关键词：211At-tellurium colloid;Frequency of Ag-NORs   
        9
        |
        12
        |
        1
        <HTML>
        <L-PDF><Meta-XML>
        <引用本文> <批量引用> 28340415 false
        发布时间：2022-08-16

        研究论文

      • Shaojie Wang,Xiaohua Li,Yilong Chen,Shiqing Li,Guohua Feng,Zhu Wang,Ang Chen,Biaorong Li
        Vol. 12, Issue 7, (1989)
        摘要：The positron lifetime and Doppler broadening were measured as a function of temperature between 100K and 300K for Y-Ba-Cu-O superconductor. There are anomalous changes in the positron lifetimes and S parameters near 130K and 260K which imply that some phase transitions related to superconductivity happenned there. The results were discussed in terms of the lattice instabilities which may caused by the ordering readjustment of oxygen vacancies.  
        关键词：High-Tc superconductor;Y-Ba-Cu-O;Positron annihilation   
        7
        |
        11
        |
        0
        <HTML>
        <L-PDF><Meta-XML>
        <引用本文> <批量引用> 28340347 false
        发布时间：2022-08-16
      0