//m.getgobooth.com/ 必威体育下载 daily 15 2024-09-05 15:36:23 apsoffice@iphy.ac.cn apsoffice@iphy.ac.cn 2024-09-05 15:36:23 zh Copyright ©Acta Physica Sinica All Rights Reserved. 京ICP备05002789号-1 Address: PostCode：100190 Phone: 010-82649829，82649241,82649863 Email: apsoffice@iphy.ac.cn Copyright ©Acta Physica Sinica All Rights Reserved apsoffice@iphy.ac.cn 1000-3290 //m.getgobooth.com/en/article/doi/10.7498/aps.32.423 Author(s): Xia Yue-yuan, Yang Hong, Tan Chun-yu, Li Jin-hua <br/><p>Project range and range distribution moments up to third order for twelve ion species implanted into five different substrates (such as amorphous A12O3, SiO2, UO2, LiNbO3 and 20/25/Nb stainless steel) are calculated using an improved nuclear scattering function developed recently. Some results are given for the ions considered with energy range from 5 keV to 1 MeV. The present theoretical results are compared with those published by Gibbons et al. and Winterbon, and our results are proved to agree with the recent experimental measurements more closely. The calculation method which deals with the range distribution moments in amorphous compounds and alloys is presented in some detail, and a brief discussion on the calculation accuracy is given.</p> <br/>Acta Physica Sinica. 1983 32(4): 423-445. Published 1983-02-05 Author(s): Xia Yue-yuan, Yang Hong, Tan Chun-yu, Li Jin-hua <br/><p>Project range and range distribution moments up to third order for twelve ion species implanted into five different substrates (such as amorphous A12O3, SiO2, UO2, LiNbO3 and 20/25/Nb stainless steel) are calculated using an improved nuclear scattering function developed recently. Some results are given for the ions considered with energy range from 5 keV to 1 MeV. The present theoretical results are compared with those published by Gibbons et al. and Winterbon, and our results are proved to agree with the recent experimental measurements more closely. The calculation method which deals with the range distribution moments in amorphous compounds and alloys is presented in some detail, and a brief discussion on the calculation accuracy is given.</p> <br/>Acta Physica Sinica. 1983 32(4): 423-445. Published 1983-02-05 CALCULATION OF PROJECT ION-RANGE DISTRIBUTION MOMENTS IN COMPOUNDS AND ALLOYS (I)——RANGE DISTRIBUTION MOMENTS FOR HEAVY IONS (Z1&lt;10) Xia Yue-yuan, Yang Hong, Tan Chun-yu, Li Jin-hua 1983-02-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1983 32(4): 423-445. article doi:10.7498/aps.32.423 10.7498/aps.32.423 Acta Physica Sinica 32 4 1983-02-05 //m.getgobooth.com/en/article/doi/10.7498/aps.32.423 423-445 //m.getgobooth.com/en/article/doi/10.7498/aps.32.446 Author(s): Chen Xi-chen, Guan Wei-yan, Yi Sun-sheng, Wang Zu-lun, Lin Ying <br/><p>The effect of heat treatment on the microstructure and superconducting properties of the alloy Al-8.3 at% Si-8.5 at% Ge prepared by the splat quenching technique has been studied. The results of structure analyses indicate that the rapidly cooled alloy consists of two phases: a supersaturated α-Al (Si, Ge) solid solution (matrix) and amorphous Al-Si-Ge spheres, these spheres connect with each other and form a continuous canal. After annealing at 100℃ for 50 h., the spheres decrease in size and the continuous canal disappear and some dispersive Si (Ge) granules separate out from the amorphous phase. Two superconducting-normal transitions have been found in the resistance-temperature and resistance-magnetic feild curves of the sample after annealing at 100℃ for 50 h. These results can be interpreted by the existence of two superconducting phases in this sample.</p> <br/>Acta Physica Sinica. 1983 32(4): 446-459. Published 1983-02-05 Author(s): Chen Xi-chen, Guan Wei-yan, Yi Sun-sheng, Wang Zu-lun, Lin Ying <br/><p>The effect of heat treatment on the microstructure and superconducting properties of the alloy Al-8.3 at% Si-8.5 at% Ge prepared by the splat quenching technique has been studied. The results of structure analyses indicate that the rapidly cooled alloy consists of two phases: a supersaturated α-Al (Si, Ge) solid solution (matrix) and amorphous Al-Si-Ge spheres, these spheres connect with each other and form a continuous canal. After annealing at 100℃ for 50 h., the spheres decrease in size and the continuous canal disappear and some dispersive Si (Ge) granules separate out from the amorphous phase. Two superconducting-normal transitions have been found in the resistance-temperature and resistance-magnetic feild curves of the sample after annealing at 100℃ for 50 h. These results can be interpreted by the existence of two superconducting phases in this sample.</p> <br/>Acta Physica Sinica. 1983 32(4): 446-459. Published 1983-02-05 A STUDY ON THE SUPERCONDUCTIVITY OF FAST QUENCHED Al-Si-Ge ALLOY Chen Xi-chen, Guan Wei-yan, Yi Sun-sheng, Wang Zu-lun, Lin Ying 1983-02-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1983 32(4): 446-459. article doi:10.7498/aps.32.446 10.7498/aps.32.446 Acta Physica Sinica 32 4 1983-02-05 //m.getgobooth.com/en/article/doi/10.7498/aps.32.446 446-459 //m.getgobooth.com/en/article/doi/10.7498/aps.32.460 Author(s): Li Fang-hua, Fan Han-jie, Zhang Pei-shan, Wang Yi-hua <br/><p>A simple qnantitative method for X-ray energy dispersive analysis in investigating barium-rare earth fluorocarbonate minerals has been proposed. The reliability of this method has been tested. It is pointed out that the method might be useful in discovering new members belonging to this series of minerals.</p> <br/>Acta Physica Sinica. 1983 32(4): 460-465. Published 1983-02-05 Author(s): Li Fang-hua, Fan Han-jie, Zhang Pei-shan, Wang Yi-hua <br/><p>A simple qnantitative method for X-ray energy dispersive analysis in investigating barium-rare earth fluorocarbonate minerals has been proposed. The reliability of this method has been tested. It is pointed out that the method might be useful in discovering new members belonging to this series of minerals.</p> <br/>Acta Physica Sinica. 1983 32(4): 460-465. Published 1983-02-05 THE APPLICATION OF MICRO-AREA X-RAY ENERGY DISPERSIVE ANALYSIS IN INVESTIGATING BARIUM-RARE EARTH FLUOROCARBONATE MINERALS Li Fang-hua, Fan Han-jie, Zhang Pei-shan, Wang Yi-hua 1983-02-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1983 32(4): 460-465. article doi:10.7498/aps.32.460 10.7498/aps.32.460 Acta Physica Sinica 32 4 1983-02-05 //m.getgobooth.com/en/article/doi/10.7498/aps.32.460 460-465 //m.getgobooth.com/en/article/doi/10.7498/aps.32.466 Author(s): He Shou-an, Zhao You-xiang, Liu Jia-rui, Li Yin-yuan <br/><p>Using the X-ray diffraction method, we have investigated the effects of high pressure and H+ impregnation on β→α transition in β-LiIO3 crystals. The samples had been subjected to high pressure treatment (up to 80kb)at room temperature and then preserved in ordinary environmental condition for different periods of time. The experimental results show that in β→α transition in the samples treated as above the pressure can be understood to play a role of promoting the nucleation of a -phase in β-matrix, and the pressure dependence of the rate of nucleation N can be expressed in the form of N ∝ekp (k= 26.8/bar). The significant increase of quantity of α-phase in such samples may be attributed to the rapid growth of α-LiIO3 nucleus under the influenle of H+ formed through the dissociation of adsorped water molecules on the surface of a nucleus. This conclusion is supported by the similar effects in the experiment of H+ impregnation of pressurized β-LiIO3 samples.</p> <br/>Acta Physica Sinica. 1983 32(4): 466-472. Published 1983-02-05 Author(s): He Shou-an, Zhao You-xiang, Liu Jia-rui, Li Yin-yuan <br/><p>Using the X-ray diffraction method, we have investigated the effects of high pressure and H+ impregnation on β→α transition in β-LiIO3 crystals. The samples had been subjected to high pressure treatment (up to 80kb)at room temperature and then preserved in ordinary environmental condition for different periods of time. The experimental results show that in β→α transition in the samples treated as above the pressure can be understood to play a role of promoting the nucleation of a -phase in β-matrix, and the pressure dependence of the rate of nucleation N can be expressed in the form of N ∝ekp (k= 26.8/bar). The significant increase of quantity of α-phase in such samples may be attributed to the rapid growth of α-LiIO3 nucleus under the influenle of H+ formed through the dissociation of adsorped water molecules on the surface of a nucleus. This conclusion is supported by the similar effects in the experiment of H+ impregnation of pressurized β-LiIO3 samples.</p> <br/>Acta Physica Sinica. 1983 32(4): 466-472. Published 1983-02-05 EFFECT OF H+ ON THE β→α TRANSITION IN β-LiIO3 AFTER HIGH PRESSURE TREATMENT He Shou-an, Zhao You-xiang, Liu Jia-rui, Li Yin-yuan 1983-02-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1983 32(4): 466-472. article doi:10.7498/aps.32.466 10.7498/aps.32.466 Acta Physica Sinica 32 4 1983-02-05 //m.getgobooth.com/en/article/doi/10.7498/aps.32.466 466-472 //m.getgobooth.com/en/article/doi/10.7498/aps.32.473 Author(s): Liu Jin-long, Li Hui-zhang, Shi Zhong-jian, Yang Yin-lan, Weng Wen-sheng <br/><p>With pulling direction along [0001] axis and normal of (1014) plane, respectively, growth of large LiNbO3 single crystals was achieved by using Czochraski technique. The dimension of the crystals was 100 mm in diameter and 50 mm long. Measurements of various properties were made. The quality of these crystals was found to be uniform. Thieir piezo-elastic-dielectric properties were the same as ordinary LiNbO3 single crystals.</p> <br/>Acta Physica Sinica. 1983 32(4): 473-480. Published 1983-02-05 Author(s): Liu Jin-long, Li Hui-zhang, Shi Zhong-jian, Yang Yin-lan, Weng Wen-sheng <br/><p>With pulling direction along [0001] axis and normal of (1014) plane, respectively, growth of large LiNbO3 single crystals was achieved by using Czochraski technique. The dimension of the crystals was 100 mm in diameter and 50 mm long. Measurements of various properties were made. The quality of these crystals was found to be uniform. Thieir piezo-elastic-dielectric properties were the same as ordinary LiNbO3 single crystals.</p> <br/>Acta Physica Sinica. 1983 32(4): 473-480. Published 1983-02-05 GROWTH AND PROPERTIES OF LARGE LiNbO3 CRYSTALS Liu Jin-long, Li Hui-zhang, Shi Zhong-jian, Yang Yin-lan, Weng Wen-sheng 1983-02-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1983 32(4): 473-480. article doi:10.7498/aps.32.473 10.7498/aps.32.473 Acta Physica Sinica 32 4 1983-02-05 //m.getgobooth.com/en/article/doi/10.7498/aps.32.473 473-480 //m.getgobooth.com/en/article/doi/10.7498/aps.32.481 Author(s): Xu Zhi-zhan, Yin Guang-yu, Zhang Yan-zhen, Lin Kang-chun <br/><p>Our investigation indicates that if the incident laser contains distinct pre-pulse, the occurrence of stimulated Brillouin scattering under the interaction of high intensity sub-ns pulse laser with plasmas can be self-consistently confirmed. The evidences include an anomalous increase of the fraction of incident laser energy which is backscattered into the focusing lens, the red shift and broadening of spectrum of back-reflected laser, the dramatic reduction of total ion energy and fast ion emission, the enhancement of sidescattered laser light at large scattering angles and so on.</p> <br/>Acta Physica Sinica. 1983 32(4): 481-489. Published 1983-02-05 Author(s): Xu Zhi-zhan, Yin Guang-yu, Zhang Yan-zhen, Lin Kang-chun <br/><p>Our investigation indicates that if the incident laser contains distinct pre-pulse, the occurrence of stimulated Brillouin scattering under the interaction of high intensity sub-ns pulse laser with plasmas can be self-consistently confirmed. The evidences include an anomalous increase of the fraction of incident laser energy which is backscattered into the focusing lens, the red shift and broadening of spectrum of back-reflected laser, the dramatic reduction of total ion energy and fast ion emission, the enhancement of sidescattered laser light at large scattering angles and so on.</p> <br/>Acta Physica Sinica. 1983 32(4): 481-489. Published 1983-02-05 STIMULATED BRILLOUIN SCATTERING DUE TO LASER-PLASMA INTERACTIONS Xu Zhi-zhan, Yin Guang-yu, Zhang Yan-zhen, Lin Kang-chun 1983-02-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1983 32(4): 481-489. article doi:10.7498/aps.32.481 10.7498/aps.32.481 Acta Physica Sinica 32 4 1983-02-05 //m.getgobooth.com/en/article/doi/10.7498/aps.32.481 481-489 //m.getgobooth.com/en/article/doi/10.7498/aps.32.490 Author(s): Zhang Ren-he, Zhu Bai-xian <br/><p>In this paper, the sound field of a more general directional radiator in a stratified medium is treated, and the concept of directivity is applied to calculation of the normal modes. The result shows that the normal-mode field of a directional radiator can be obtained by supplementing the normal-mode expression of a omnidirectional point source with the directivity-excitation-function, which is dependent on the position and directivity of the radiator. In addition, the normal-mode fields of the radiators with vertical-symmetrical, vertical-antisymmetrical, single-side and sharp directivity are calculated, respectively.For the vertical line array in a homogeneous water-layer, if the source distribution is proportional to the eigenfunction of some normal mode, the zeros of the directivity-excitation-function are just corresponding to the directions of eigen-rays of other normal modes.</p> <br/>Acta Physica Sinica. 1983 32(4): 490-496. Published 1983-02-05 Author(s): Zhang Ren-he, Zhu Bai-xian <br/><p>In this paper, the sound field of a more general directional radiator in a stratified medium is treated, and the concept of directivity is applied to calculation of the normal modes. The result shows that the normal-mode field of a directional radiator can be obtained by supplementing the normal-mode expression of a omnidirectional point source with the directivity-excitation-function, which is dependent on the position and directivity of the radiator. In addition, the normal-mode fields of the radiators with vertical-symmetrical, vertical-antisymmetrical, single-side and sharp directivity are calculated, respectively.For the vertical line array in a homogeneous water-layer, if the source distribution is proportional to the eigenfunction of some normal mode, the zeros of the directivity-excitation-function are just corresponding to the directions of eigen-rays of other normal modes.</p> <br/>Acta Physica Sinica. 1983 32(4): 490-496. Published 1983-02-05 NORMAL-MODE SOUND FIELD OF DIRECTIONAL RADIATOR Zhang Ren-he, Zhu Bai-xian 1983-02-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1983 32(4): 490-496. article doi:10.7498/aps.32.490 10.7498/aps.32.490 Acta Physica Sinica 32 4 1983-02-05 //m.getgobooth.com/en/article/doi/10.7498/aps.32.490 490-496 //m.getgobooth.com/en/article/doi/10.7498/aps.32.497 Author(s): Zhou Jie, Li Shu-ying, Tan Fei <br/><p>With dark capacitance transient method, electron emission and capture transient processes at deep level, which is located within an energy range of KT above EF in depteled region of zero-biased junction, have been observed in Pt diffused deep diffsion junction of n-Si and p-Si with different background doping density. These transient behaviors agree with the solution of electron variation rate equation of deep level for different initial conditions at that place.In this paper, a machanism is also proposed to explain the occurrence of emission transient. It is considered that the origin of emission transient is closely related to the structure in the deep diffusion junctions and the capture transient to the capture characteristic of different impurity.</p> <br/>Acta Physica Sinica. 1983 32(4): 497-506. Published 1983-02-05 Author(s): Zhou Jie, Li Shu-ying, Tan Fei <br/><p>With dark capacitance transient method, electron emission and capture transient processes at deep level, which is located within an energy range of KT above EF in depteled region of zero-biased junction, have been observed in Pt diffused deep diffsion junction of n-Si and p-Si with different background doping density. These transient behaviors agree with the solution of electron variation rate equation of deep level for different initial conditions at that place.In this paper, a machanism is also proposed to explain the occurrence of emission transient. It is considered that the origin of emission transient is closely related to the structure in the deep diffusion junctions and the capture transient to the capture characteristic of different impurity.</p> <br/>Acta Physica Sinica. 1983 32(4): 497-506. Published 1983-02-05 THE RECOMBINATION BEHAVIOR OF PLATIUM IN SILICON Zhou Jie, Li Shu-ying, Tan Fei 1983-02-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1983 32(4): 497-506. article doi:10.7498/aps.32.497 10.7498/aps.32.497 Acta Physica Sinica 32 4 1983-02-05 //m.getgobooth.com/en/article/doi/10.7498/aps.32.497 497-506 //m.getgobooth.com/en/article/doi/10.7498/aps.32.507 Author(s): Shi Bing-ren <br/><p>The toroidal equilibrium properties of relativistic electron beams with double- δ function distribution are considered. The approximate solutions of the magnetic flux and the electric potential equations expanded in terms of the inverse aspect ratio of the torus are obtained analytically. The drift surfaces of electrons in the beam are also described.</p> <br/>Acta Physica Sinica. 1983 32(4): 507-514. Published 1983-02-05 Author(s): Shi Bing-ren <br/><p>The toroidal equilibrium properties of relativistic electron beams with double- δ function distribution are considered. The approximate solutions of the magnetic flux and the electric potential equations expanded in terms of the inverse aspect ratio of the torus are obtained analytically. The drift surfaces of electrons in the beam are also described.</p> <br/>Acta Physica Sinica. 1983 32(4): 507-514. Published 1983-02-05 TOKAMAK-LIKE EQUILIBRIA OF RELATIVISTIC ELECTRON BEAMS Shi Bing-ren 1983-02-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1983 32(4): 507-514. article doi:10.7498/aps.32.507 10.7498/aps.32.507 Acta Physica Sinica 32 4 1983-02-05 //m.getgobooth.com/en/article/doi/10.7498/aps.32.507 507-514 //m.getgobooth.com/en/article/doi/10.7498/aps.32.515 Author(s): Liu Wen-sen <br/><p>The main statements of paper [1] are critically reviewed and the blunders in the deduction are indicated. It is showend that the total energy-momentum complex proposed in paper [1] and the energy of gravitational field in a finite part of space are not unique under pure spatial transformation and, therefore, are not possessed of a definite physical meaning.</p> <br/>Acta Physica Sinica. 1983 32(4): 515-519. Published 1983-02-05 Author(s): Liu Wen-sen <br/><p>The main statements of paper [1] are critically reviewed and the blunders in the deduction are indicated. It is showend that the total energy-momentum complex proposed in paper [1] and the energy of gravitational field in a finite part of space are not unique under pure spatial transformation and, therefore, are not possessed of a definite physical meaning.</p> <br/>Acta Physica Sinica. 1983 32(4): 515-519. Published 1983-02-05 LOCALISATION OF ENERGY IN GENERAL RELATIVITY Liu Wen-sen 1983-02-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1983 32(4): 515-519. article doi:10.7498/aps.32.515 10.7498/aps.32.515 Acta Physica Sinica 32 4 1983-02-05 //m.getgobooth.com/en/article/doi/10.7498/aps.32.515 515-519 //m.getgobooth.com/en/article/doi/10.7498/aps.32.520 Author(s): Wang Li-xuan <br/><p>A technique is proposed for determining the dispersion and measureing the thickness of epitaxial garnet films. Use is made fully of the transmission spectrum obtained by spe-ctrophotometer. When the wave length is greater than 2μm so that the absorption and dispersion become negligible, the refractive index at the corresponding wave length may be calculated from the extrema of the transmittance. According to the condition of in-terferrence, the order of interferrence is calculated and deduced for all interferrence extrema. The refractive indices of the film at the wave lengths corresponding to the interferrence extrema may be calculated. Finally the coefficience of Cauchy's dispersion formula are evaluated by the method of least squares, thus the dispersion relation is obtained for this film. Then, in making use of the dispersion relation, the thickness of the film may be calculated.</p> <br/>Acta Physica Sinica. 1983 32(4): 520-524. Published 1983-02-05 Author(s): Wang Li-xuan <br/><p>A technique is proposed for determining the dispersion and measureing the thickness of epitaxial garnet films. Use is made fully of the transmission spectrum obtained by spe-ctrophotometer. When the wave length is greater than 2μm so that the absorption and dispersion become negligible, the refractive index at the corresponding wave length may be calculated from the extrema of the transmittance. According to the condition of in-terferrence, the order of interferrence is calculated and deduced for all interferrence extrema. The refractive indices of the film at the wave lengths corresponding to the interferrence extrema may be calculated. Finally the coefficience of Cauchy's dispersion formula are evaluated by the method of least squares, thus the dispersion relation is obtained for this film. Then, in making use of the dispersion relation, the thickness of the film may be calculated.</p> <br/>Acta Physica Sinica. 1983 32(4): 520-524. Published 1983-02-05 DETERMINATION OF THE DISPERSION AND THE MEASURE-MENT OF THE THICKNESS OF EPITAXIAL GARNET FILMS Wang Li-xuan 1983-02-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1983 32(4): 520-524. article doi:10.7498/aps.32.520 10.7498/aps.32.520 Acta Physica Sinica 32 4 1983-02-05 //m.getgobooth.com/en/article/doi/10.7498/aps.32.520 520-524 //m.getgobooth.com/en/article/doi/10.7498/aps.32.525 Author(s): Meng Qing-an, Cao Qi-juan <br/><p>A structural phase transition in crystal LiKSO4 at Tc = 195 K was confirmed by NMR experiment previously. In this article, the temperature dependence of the electric field gradient tensor at lithium site in the range of 110-300 K is reported, and combined with a simplified ion crystal model the crystal structure is discussed. It is shown that even in the room temperature phase, the lithium position should be at (2/3, 1/3, 0.706) instead of the position at (2/3, 1/3, 0.849) suggested previously by Bradley. The phase transition is attributed to the displacement of lithium ions. The space group of the low temperature phase may be R3.</p> <br/>Acta Physica Sinica. 1983 32(4): 525-529. Published 1983-02-05 Author(s): Meng Qing-an, Cao Qi-juan <br/><p>A structural phase transition in crystal LiKSO4 at Tc = 195 K was confirmed by NMR experiment previously. In this article, the temperature dependence of the electric field gradient tensor at lithium site in the range of 110-300 K is reported, and combined with a simplified ion crystal model the crystal structure is discussed. It is shown that even in the room temperature phase, the lithium position should be at (2/3, 1/3, 0.706) instead of the position at (2/3, 1/3, 0.849) suggested previously by Bradley. The phase transition is attributed to the displacement of lithium ions. The space group of the low temperature phase may be R3.</p> <br/>Acta Physica Sinica. 1983 32(4): 525-529. Published 1983-02-05 THE Li SITES IN THE RT AND LOW TEMPERATURE PHASES OF LiKSO4 CRYSTALS Meng Qing-an, Cao Qi-juan 1983-02-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1983 32(4): 525-529. article doi:10.7498/aps.32.525 10.7498/aps.32.525 Acta Physica Sinica 32 4 1983-02-05 //m.getgobooth.com/en/article/doi/10.7498/aps.32.525 525-529 //m.getgobooth.com/en/article/doi/10.7498/aps.32.530 Author(s): Zhang Jin-xiu, Pan Zheng liang, Ge Ting-sui <br/><p>Free decay curves of slightly cold-worked Al-0.5 wt% Cu specimen aged at room temperature (20℃) for 24 hrs were determined by an automatic inverted torsion pendulum with computer control. A series of amplitude internal friction peaks were observed as the excitation amplitude was increased succestively even when the internal friction was very low.</p> <br/>Acta Physica Sinica. 1983 32(4): 530-533. Published 1983-02-05 Author(s): Zhang Jin-xiu, Pan Zheng liang, Ge Ting-sui <br/><p>Free decay curves of slightly cold-worked Al-0.5 wt% Cu specimen aged at room temperature (20℃) for 24 hrs were determined by an automatic inverted torsion pendulum with computer control. A series of amplitude internal friction peaks were observed as the excitation amplitude was increased succestively even when the internal friction was very low.</p> <br/>Acta Physica Sinica. 1983 32(4): 530-533. Published 1983-02-05 ANOMALOUS AMPLITUDE-DEPENDENCE EFFECT OBSERVED IN Al-0.5wt% Cu ALLOY WHEN THE INTERNAL FRICTION IS EXTREMELY LOW Zhang Jin-xiu, Pan Zheng liang, Ge Ting-sui 1983-02-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1983 32(4): 530-533. article doi:10.7498/aps.32.530 10.7498/aps.32.530 Acta Physica Sinica 32 4 1983-02-05 //m.getgobooth.com/en/article/doi/10.7498/aps.32.530 530-533 //m.getgobooth.com/en/article/doi/10.7498/aps.32.534 Author(s): Luo Qi-guang, Jin Duo, Liu Zhi-yi, Ran Qi-ze, Jin Zuo-wen, Ma Ming-rong, Zhao Zhong-xian, Ni Yong-ming <br/><p>This paper gives the relationship between the superconductive critical temperature and the composition of the alloys in Ti-Pd system, and discusses it in connection with the Ti-Pd phase diagram. It is pointed out that the superconductivity in the Ti-Pd system is due to the contribution of the titanium-palladium solid solution. It is also suggested that the limit of the palladium solubility in Ti-Pd system should be relatively large.</p> <br/>Acta Physica Sinica. 1983 32(4): 534-538. Published 1983-02-05 Author(s): Luo Qi-guang, Jin Duo, Liu Zhi-yi, Ran Qi-ze, Jin Zuo-wen, Ma Ming-rong, Zhao Zhong-xian, Ni Yong-ming <br/><p>This paper gives the relationship between the superconductive critical temperature and the composition of the alloys in Ti-Pd system, and discusses it in connection with the Ti-Pd phase diagram. It is pointed out that the superconductivity in the Ti-Pd system is due to the contribution of the titanium-palladium solid solution. It is also suggested that the limit of the palladium solubility in Ti-Pd system should be relatively large.</p> <br/>Acta Physica Sinica. 1983 32(4): 534-538. Published 1983-02-05 THE RESEARCH OF SUPERCONDUCTIVITY IN THE Ti-Pd SYSTEM Luo Qi-guang, Jin Duo, Liu Zhi-yi, Ran Qi-ze, Jin Zuo-wen, Ma Ming-rong, Zhao Zhong-xian, Ni Yong-ming 1983-02-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1983 32(4): 534-538. article doi:10.7498/aps.32.534 10.7498/aps.32.534 Acta Physica Sinica 32 4 1983-02-05 //m.getgobooth.com/en/article/doi/10.7498/aps.32.534 534-538 //m.getgobooth.com/en/article/doi/10.7498/aps.32.539 Author(s): Yang Hua-guang, Li Chen-xi, Xu Zheng-yi <br/><p>The "spillover" of the Raman spectral lines and the change of their intensities were observed in a- LiIO3 single crystal under the action of a DC field. They are due to the fluctuation of the polarizability tensor and the Raman tensor of α-LiIO3 single crystal during the transportation of ions. The former induces the o←→e scattering. Sequently, if this o←→e scattering light acts as an incident beam to produce Raman scattering, the phenomena mentioned above could occur. The latter brings about the phenomena directly. The former mechanism is predominant.</p> <br/>Acta Physica Sinica. 1983 32(4): 539-543. Published 1983-02-05 Author(s): Yang Hua-guang, Li Chen-xi, Xu Zheng-yi <br/><p>The "spillover" of the Raman spectral lines and the change of their intensities were observed in a- LiIO3 single crystal under the action of a DC field. They are due to the fluctuation of the polarizability tensor and the Raman tensor of α-LiIO3 single crystal during the transportation of ions. The former induces the o←→e scattering. Sequently, if this o←→e scattering light acts as an incident beam to produce Raman scattering, the phenomena mentioned above could occur. The latter brings about the phenomena directly. The former mechanism is predominant.</p> <br/>Acta Physica Sinica. 1983 32(4): 539-543. Published 1983-02-05 MECHANISM OF THE “SPILLOVER” OF RAMAN SPECTRAL LINES AND THE CHANGE OF THEIR INTENSITIES IN α-LiIO3 SINGLE CRYSTAL UNDER THE ACTION OF A DC FIELD Yang Hua-guang, Li Chen-xi, Xu Zheng-yi 1983-02-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1983 32(4): 539-543. article doi:10.7498/aps.32.539 10.7498/aps.32.539 Acta Physica Sinica 32 4 1983-02-05 //m.getgobooth.com/en/article/doi/10.7498/aps.32.539 539-543 //m.getgobooth.com/en/article/doi/10.7498/aps.32.544 Author(s): Chen Shi-sheng, Zhao Qin-chun, Bi Wu-ji, Wang Xiao-qin, He Xing-fa <br/><p>The measurment on the 3/2ω0. harmonic emission from laser plasma has been carried out. The experimental results show that harmonic spectra has a blue-shift of about 70? and is broadened by about 26? when power density on the target surface is about 1014W/cm2. There is a slight broadening of spectra following the increase of power density on the target surface.</p> <br/>Acta Physica Sinica. 1983 32(4): 544-547. Published 1983-02-05 Author(s): Chen Shi-sheng, Zhao Qin-chun, Bi Wu-ji, Wang Xiao-qin, He Xing-fa <br/><p>The measurment on the 3/2ω0. harmonic emission from laser plasma has been carried out. The experimental results show that harmonic spectra has a blue-shift of about 70? and is broadened by about 26? when power density on the target surface is about 1014W/cm2. There is a slight broadening of spectra following the increase of power density on the target surface.</p> <br/>Acta Physica Sinica. 1983 32(4): 544-547. Published 1983-02-05 EXPERIMENTAL OBSERVATION ON 3/2ω0 HARMONIC EMISSION FROM LASER PLASMA Chen Shi-sheng, Zhao Qin-chun, Bi Wu-ji, Wang Xiao-qin, He Xing-fa 1983-02-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1983 32(4): 544-547. article doi:10.7498/aps.32.544 10.7498/aps.32.544 Acta Physica Sinica 32 4 1983-02-05 //m.getgobooth.com/en/article/doi/10.7498/aps.32.544 544-547 //m.getgobooth.com/en/article/doi/10.7498/aps.32.548 Author(s): Chen Jian-wen, Xia Kang-min, Liu Miao-hong, Zhong Fan <br/><p>Technique on measuring discharge current of Blumlein circuit using magnet-light method is described briefly in this paper. The more exact method estimating distributive inductance of discharge circuit is presented. The circuit equations are solved and the analytic expression of distributive inductance is derived. Finally, the calculated result is discussed.</p> <br/>Acta Physica Sinica. 1983 32(4): 548-552. Published 1983-02-05 Author(s): Chen Jian-wen, Xia Kang-min, Liu Miao-hong, Zhong Fan <br/><p>Technique on measuring discharge current of Blumlein circuit using magnet-light method is described briefly in this paper. The more exact method estimating distributive inductance of discharge circuit is presented. The circuit equations are solved and the analytic expression of distributive inductance is derived. Finally, the calculated result is discussed.</p> <br/>Acta Physica Sinica. 1983 32(4): 548-552. Published 1983-02-05 MEASUREMENT OF DISCHARGE CIRCUIT DISTRIBUTIVE INDUCTANCE FOR BLUMLEIN EXCIMER LASER Chen Jian-wen, Xia Kang-min, Liu Miao-hong, Zhong Fan 1983-02-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1983 32(4): 548-552. article doi:10.7498/aps.32.548 10.7498/aps.32.548 Acta Physica Sinica 32 4 1983-02-05 //m.getgobooth.com/en/article/doi/10.7498/aps.32.548 548-552 //m.getgobooth.com/en/article/doi/10.7498/aps.32.553 Author(s): Lin Xiu-yun, Zhang Shu-de, Wu Shen <br/><p>This compound is a QINGHAOSU degradation product. The molecule consists of 14 carbon, 20 hydrogen, and 3 oxygen atoms. It crystallizes in the orthorhombic system with space group P21 21 21. There are four molecules in a unit cell, the lattice parameters are a = 16.997?, b = 10.298?, and c = 7.394?.The three-dimensional intensity data were collected by using PW-1100 four-circle diff-ractometer and the number of the independent diffractions amounts to 1377. The crystal structure was solved by direct methods. The positions of 14 atoms were given by E map and the additional carbon atom sites were obtained by cycle of Fourier synthses. The structure was refined by block-diagonal least square method. The final R-factor is 0.084.</p> <br/>Acta Physica Sinica. 1983 32(4): 553-558. Published 1983-02-05 Author(s): Lin Xiu-yun, Zhang Shu-de, Wu Shen <br/><p>This compound is a QINGHAOSU degradation product. The molecule consists of 14 carbon, 20 hydrogen, and 3 oxygen atoms. It crystallizes in the orthorhombic system with space group P21 21 21. There are four molecules in a unit cell, the lattice parameters are a = 16.997?, b = 10.298?, and c = 7.394?.The three-dimensional intensity data were collected by using PW-1100 four-circle diff-ractometer and the number of the independent diffractions amounts to 1377. The crystal structure was solved by direct methods. The positions of 14 atoms were given by E map and the additional carbon atom sites were obtained by cycle of Fourier synthses. The structure was refined by block-diagonal least square method. The final R-factor is 0.084.</p> <br/>Acta Physica Sinica. 1983 32(4): 553-558. Published 1983-02-05 THE MOLECULAR AND CRYSTAL STRUCTURE OF DEGRADATION PRODUCT ARTEMISININE-ENDOCYCLIC KETONE SESQUITERPENE LACTONE Lin Xiu-yun, Zhang Shu-de, Wu Shen 1983-02-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1983 32(4): 553-558. article doi:10.7498/aps.32.553 10.7498/aps.32.553 Acta Physica Sinica 32 4 1983-02-05 //m.getgobooth.com/en/article/doi/10.7498/aps.32.553 553-558