最新刊期
      卷 0 ， 期 0 ， 2020
      • Yan Pengxun Chen Fagui
        Issue 12, (1992)
        摘要：The structure of carbon layer deposited on metal surface in ion implantation process and its effects on the properties of implantation layers were investigated . The mechanisms about both the formation of the carbon contamination and the above effects were discussed.  
          
        8
        |
        44
        |
        2
        <HTML>
        <L-PDF><Meta-XML>
        <引用本文> <批量引用> 8401289 false
        发布时间：2021-04-09
      • Zhao Jie Li Dejun
        Issue 12, (1992)
        摘要：The biological and chemical properties of Si+ implanted medical polyurethane were studied. It was shown that both wettability and blood adsorption of surface were improved. The results of SEM, ESCA and FTP - IR - ATR analysis indicated that C - H and C - O bonds on the surface were broken up and the degree of phase separation was increased after Si ion bombardment.  
          
        8
        |
        24
        |
        0
        <HTML>
        <L-PDF><Meta-XML>
        <引用本文> <批量引用> 8401299 false
        发布时间：2021-04-09
      • Zhang Jiping Wang Zhenxia Tao Zhenlan Pan Jisheng
        Issue 12, (1992)
        摘要：The effect of dopant boron in nickel and copper bulk on sputtering yields has been investigated by the Rutherford backscattering spectroscopy. It is shown that the extent of decrease in sputtering yield of Ni from Ni - B alloy with respect of the electronic structure has been discussed. This experimental result qualitatively conforms to Painter’s computation, and the quantitative difference may be attributed to the effect of grain boundaries and the surface topography formed during ion -bombardment.  
          
        17
        |
        34
        |
        0
        <HTML>
        <L-PDF><Meta-XML>
        <引用本文> <批量引用> 8401317 false
        发布时间：2021-04-09
      • Yang Zhihu Zhao Mengchun Ma Xinwen Wang Youde Xu Qian Liu Huiping
        Issue 12, (1992)
        摘要：The results of lifetime for N I and Ne I using the beam - foil technique were compared with those obtained by others using the phase shift technique and the intensity measurement technique on a He -Ne plasma. The experimental data were analysed with a multi -exponential curve - fitting program CANDY.  
          
        8
        |
        50
        |
        1
        <HTML>
        <L-PDF><Meta-XML>
        <引用本文> <批量引用> 8401371 false
        发布时间：2021-04-09
      • Zheng Jinshan Liu Jie
        Issue 12, (1992)
        摘要：The phases of corrosion products on underground steel tube and their changes with depth of rust layer were analysed using Mossbauer effect, X - ray diffraction and proton X -ray fluorescence analysis. The procedure of rust formation was discussed.  
          
        8
        |
        37
        |
        0
        <HTML>
        <L-PDF><Meta-XML>
        <引用本文> <批量引用> 8401343 false
        发布时间：2021-04-09
      • Li Shiqing Zhang Nengli
        Issue 12, (1992)
        摘要：7 irradiation damage of photo -diodes and photo - transistors has been studied. The irradiation doses were 104, 105 and 106Gy（Si）, respectively. The experimental results showed that the light current Ip, current amplification factor β and response time to photo -devices were all decreased while dark current Id increased and junction capacitance C unchanged basically. After 72 h of annealing at 180 ℃ ,the electro - parameters of the photo -devices stored for 180 days were not well restored, which indicated that 7 irradiation would induce not only instant but also partially permanent damage.  
          
        8
        |
        45
        |
        2
        <HTML>
        <L-PDF><Meta-XML>
        <引用本文> <批量引用> 8401333 false
        发布时间：2021-04-09
      • Yao Zeen Su Tongling Jiang Bianying
        Issue 12, (1992)
        摘要：A method of an arbitrary neutron spectrum equivalence for damage in semiconductor by multisource synthesis was described . An arbitrary spectrum was simulated by the least squares fit, using the D-T spectrum and the 200# spectrum as known spectra. Some 3DK2 transistors were selected for the irradiation experiment and primary neutron spectrum equivalence results were obtained.  
          
        8
        |
        46
        |
        3
        <HTML>
        <L-PDF><Meta-XML>
        <引用本文> <批量引用> 8401504 false
        发布时间：2021-04-09
      • Zhu Benren Cai Ximing
        Issue 12, (1992)
        摘要：Using chemical tracer KC1 and combined with FAAS method to determine the variation regulation of potassium concentration, the situation of fluid intermixing and the influence of time - lag in the cavity of the pressure vessel for a nuclear power reactor were studied. The tracer method has many advantages over the radioisotope technique, such as simple sample preparation,non -toxic and pollution - free draining, low cost （KCl）,and very convenient and reliable determination of potassium concentration by FAAS method.  
          
        7
        |
        49
        |
        1
        <HTML>
        <L-PDF><Meta-XML>
        <引用本文> <批量引用> 8401354 false
        发布时间：2021-04-09
      • Pan Wensong Zhou Zhixin
        Issue 12, (1992)
        摘要：The preparation method and TL glow curve of a new TL materials namely CaSO4:Na, Dy were described. The area ratio of low and high temperature glow peaks has been used to estimate the elapsed time after β irradiation. A good estimate of elapsed time after an accidental exposure within 3 months can be made for a dosimeter stored at 10℃.  
          
        6
        |
        16
        |
        1
        <HTML>
        <L-PDF><Meta-XML>
        <引用本文> <批量引用> 8401362 false
        发布时间：2021-04-09
      • Cai Fulong Chen Ying Xu Pian Lai Zhaocai
        Issue 12, (1992)
        摘要：A sea weed （Scirpus grossus Linn ） was taken as an experimental plant to indicate radioactive pollution in estuaries. The results showed that the accumulation of 137Cs,65Zn, 60Co, 50Fe and 54Mn hy Scirpus grossus was proportional to their concentration in the soil. After the nuclidcs in the soil were washed out for one month, more than 9. 2% of the nuclides in Sctrpus grossus still remained , within the detection limit . Absorption of the nuclides from water by the stem above soil was larger than that from soil by the root. The concentration factors of the root . the stem underneath soil and stem above soil for the nuclides were determined. Radioactive pollution degrees of both the sea water and the soil can be deduced by means of conversion of the concentration factor’s formula.  
          
        6
        |
        62
        |
        1
        <HTML>
        <L-PDF><Meta-XML>
        <引用本文> <批量引用> 8401385 false
        发布时间：2021-04-09
      • Issue 12, (1992)
        摘要：Uranium contents of drinking water, ground water and underground water were determined . covering 668 water samples taken from 25 sampling sites in Jiangsu, Zhejiang and Shanghai area. The result showed that uranium content in water sampler from this area was 0. 07 - 0. 72μg/l. within the range of the normal background for natural water in China.  
          
        7
        |
        46
        |
        2
        <HTML>
        <L-PDF><Meta-XML>
        <引用本文> <批量引用> 8401397 false
        发布时间：2021-04-09
      • Liu Nianqing Yan Lingna Zhang Xiaofeng Zhao Shunying Feng Songlin Zhong Ming
        Issue 12, (1992)
        摘要：Rubidium concentration in erythrocyte collected from children living in four different areas of Sichuan Province has been determined with PIXE. The results showed that Rb content in erythrocyte for children in Keshan disease（KD）area （Dechang County）was three times higher than that of child in other three non - KD areas. The abnormal high Rb concentration in erythrocyte might be another risk factor other than Se deficiency.  
          
        8
        |
        32
        |
        1
        <HTML>
        <L-PDF><Meta-XML>
        <引用本文> <批量引用> 8401449 false
        发布时间：2021-04-09
      • Zhong Shenghao Shen Qinsong Zhang Youliang
        Issue 12, (1992)
        摘要：The concentration of radon and its progenies was surveyed by using the two - filter method and the three - phase total alpha measurement respectively. The concentrations of radon and its progenies （RaA, RaB and RaC）in some underground buildings in Shanghai were found to be 80. 6,48. 8.47. 9 and 34. 0Bq · m-3, respectively. The potential energy and equivalent equilibrium factor of radon progenies were 11. 3×10-3WL and 0. 43 respectively. It was also evaluated that the annual effective equivalent dose from radon progenies inhaled by people living in these underground buildings was 1. 24mSv. Finally, measures for lowering the level of radon and its progenies in underground buildings were discussed.  
          
        9
        |
        54
        |
        3
        <HTML>
        <L-PDF><Meta-XML>
        <引用本文> <批量引用> 8401516 false
        发布时间：2021-04-09
      • Shi Shuanghui Huang Wenda Li Yan Yin Duanzhi Gu Jiahui Tian Jiaqi
        Issue 12, (1992)
        摘要：A new 202Pt isotope was found by irradiation of mercury compounds with fast neutrons in the cyclotron. The 202 Pt activities were separated from the mixture by precipitations as （NH4）2PtCl6. In this fraction, a T1/2 43. 6±15. 2h activity has been attributed to 202 Pt, produced by 204Hg（n,2pn）202Pt.  
          
        7
        |
        25
        |
        1
        <HTML>
        <L-PDF><Meta-XML>
        <引用本文> <批量引用> 8401409 false
        发布时间：2021-04-09
      0