//www.getgobooth.com/ 必威体育下载 daily 15 2024-08-20 10:33:39 apsoffice@iphy.ac.cn apsoffice@iphy.ac.cn 2024-08-20 10:33:39 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 //www.getgobooth.com/en/article/doi/10.7498/aps.26.93 Author(s): LASER CRYSTALS RESEARCH GROUP <br/><p>The principal axes of thermally induced birefringence in YAG laser rods generally do not possess axial symmetry because the strain-optic tensor of YAG crystals is different from that of isotropic materials A calculation is given for the (001) direction, the results of which are supported by experiments in which it was found that for CW or high repetition rate pulsed operation the transmission loss of (001) rods is lower than that of (111) rods. The polarized output of YAG lasers in which a polarizer was placed in the cavity was maximum where the transmission loss was minimum.</p> <br/>Acta Physica Sinica. 1977 26(2): 93-99. Published 1977-01-05 Author(s): LASER CRYSTALS RESEARCH GROUP <br/><p>The principal axes of thermally induced birefringence in YAG laser rods generally do not possess axial symmetry because the strain-optic tensor of YAG crystals is different from that of isotropic materials A calculation is given for the (001) direction, the results of which are supported by experiments in which it was found that for CW or high repetition rate pulsed operation the transmission loss of (001) rods is lower than that of (111) rods. The polarized output of YAG lasers in which a polarizer was placed in the cavity was maximum where the transmission loss was minimum.</p> <br/>Acta Physica Sinica. 1977 26(2): 93-99. Published 1977-01-05 THERMALLY INDUCED BIREFRINGENCE IN YAG RODS IN THE (001) DIRECTION LASER CRYSTALS RESEARCH GROUP 1977-01-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1977 26(2): 93-99. article doi:10.7498/aps.26.93 10.7498/aps.26.93 Acta Physica Sinica 26 2 1977-01-05 //www.getgobooth.com/en/article/doi/10.7498/aps.26.93 93-99 //www.getgobooth.com/en/article/doi/10.7498/aps.26.100 Author(s): HE SHOU-AN, LI JIA-LIN, CHENG XIANG-RONG, WANG WEN-JUN, SHEN ZHU-TONG <br/><p>A brief description of the methods and results of high pressure measurement with quasihydrostatic high pressure apparatus is given. The effects of the frictional layer of the sealing padding and the size of the pyrophillite tetrahedron on the pressure generation, also the pressure dependence of the thermal and mechanical properties of the pressure-transmitting medium under high pressure have been determined and the results discussed.</p> <br/>Acta Physica Sinica. 1977 26(2): 100-114. Published 1977-01-05 Author(s): HE SHOU-AN, LI JIA-LIN, CHENG XIANG-RONG, WANG WEN-JUN, SHEN ZHU-TONG <br/><p>A brief description of the methods and results of high pressure measurement with quasihydrostatic high pressure apparatus is given. The effects of the frictional layer of the sealing padding and the size of the pyrophillite tetrahedron on the pressure generation, also the pressure dependence of the thermal and mechanical properties of the pressure-transmitting medium under high pressure have been determined and the results discussed.</p> <br/>Acta Physica Sinica. 1977 26(2): 100-114. Published 1977-01-05 SOME ASPECTS IN HIGH PRESSURE HIGH TEMPERATURE TECHNOLOGY HE SHOU-AN, LI JIA-LIN, CHENG XIANG-RONG, WANG WEN-JUN, SHEN ZHU-TONG 1977-01-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1977 26(2): 100-114. article doi:10.7498/aps.26.100 10.7498/aps.26.100 Acta Physica Sinica 26 2 1977-01-05 //www.getgobooth.com/en/article/doi/10.7498/aps.26.100 100-114 //www.getgobooth.com/en/article/doi/10.7498/aps.26.115 Author(s): ZHU YONG, ZHANG DAO-FAN, CHENG XI-MIN <br/><p>The characteristic curves, measured with a 10 kHz signal of the apparent dielectric constants ε′c and ε′a were obtained for a bias electrostatic potential of various voltages applied on an α-LiIO3 single crystal z-cut plate, the potential being either in the homogeneous or in the heterogeneous direction relative to the crystal's electrical polarity. Results show that there do not exist Schottky barrier layers in the crystal. A relaxation phenomen on of ε′c as the result of application of the bias d-c field was observed similar to that which had been detected in the case of the enhancement of neutron diffraction. It was experimentally verified that the current carriers in this crystal are chiefly, if not entirely, lithium ions, and that the conductivity may be approximately described as one-dimensional along the c-axis. The characteristic curves of ρc against V+ (homogeneous direction) and V-(heterogeneous) were also obtained.</p> <br/>Acta Physica Sinica. 1977 26(2): 115-123. Published 1977-01-05 Author(s): ZHU YONG, ZHANG DAO-FAN, CHENG XI-MIN <br/><p>The characteristic curves, measured with a 10 kHz signal of the apparent dielectric constants ε′c and ε′a were obtained for a bias electrostatic potential of various voltages applied on an α-LiIO3 single crystal z-cut plate, the potential being either in the homogeneous or in the heterogeneous direction relative to the crystal's electrical polarity. Results show that there do not exist Schottky barrier layers in the crystal. A relaxation phenomen on of ε′c as the result of application of the bias d-c field was observed similar to that which had been detected in the case of the enhancement of neutron diffraction. It was experimentally verified that the current carriers in this crystal are chiefly, if not entirely, lithium ions, and that the conductivity may be approximately described as one-dimensional along the c-axis. The characteristic curves of ρc against V+ (homogeneous direction) and V-(heterogeneous) were also obtained.</p> <br/>Acta Physica Sinica. 1977 26(2): 115-123. Published 1977-01-05 THE BEHAVIOURS OF THE DIELECTRIC CONSTANT AND ELECTRICAL CONDUCTIVITY OF α-LiIO&lt;sub&lt;3&lt;/sub&lt; SINGLE CRYSTALS ZHU YONG, ZHANG DAO-FAN, CHENG XI-MIN 1977-01-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1977 26(2): 115-123. article doi:10.7498/aps.26.115 10.7498/aps.26.115 Acta Physica Sinica 26 2 1977-01-05 //www.getgobooth.com/en/article/doi/10.7498/aps.26.115 115-123 //www.getgobooth.com/en/article/doi/10.7498/aps.26.124 Author(s): CHEN CHUANG-TIAN <br/><p>A highly deformed oxygen-octahedra group (IO3)-1 such as that found in the iodate has been adapted te explain the second harmonic optical coefficients of the LiIO3 crystal. Calculations have been made on the basis of such an ionic grouping model. Calculated values are in good agreement with the experimental ones, hence the following conclusions:1) The second harmonic optical effects of the iodate crystal arise mainly from the covalent-bond contribution of the ionic grouping (IO3)-1. 2) Within this (IO3)-1 grouping it is the lone-pair electronic orbitals and the |2σ&lt;, |2Py&lt; orbitals of oxygen which have particulas influence on these second harmonic optical effects.</p> <br/>Acta Physica Sinica. 1977 26(2): 124-132. Published 1977-01-05 Author(s): CHEN CHUANG-TIAN <br/><p>A highly deformed oxygen-octahedra group (IO3)-1 such as that found in the iodate has been adapted te explain the second harmonic optical coefficients of the LiIO3 crystal. Calculations have been made on the basis of such an ionic grouping model. Calculated values are in good agreement with the experimental ones, hence the following conclusions:1) The second harmonic optical effects of the iodate crystal arise mainly from the covalent-bond contribution of the ionic grouping (IO3)-1. 2) Within this (IO3)-1 grouping it is the lone-pair electronic orbitals and the |2σ&lt;, |2Py&lt; orbitals of oxygen which have particulas influence on these second harmonic optical effects.</p> <br/>Acta Physica Sinica. 1977 26(2): 124-132. Published 1977-01-05 AN IONIC GROUPING THEORY OF THE ELECTRO-OPTICAI AND NON-LINEAR OPTICAL EFFECTS OF CRYSTALS (Ⅱ)——A THEORETICAL CALCULATION OF THE SECOND HARMONIC OPTICAL COEFFICIENTS OF THE LITHIUM IODATE CRYSTAL BASED ON A HIGHLY DEFORMED OXYGEN-OCTAHEDRA MODEL I CHEN CHUANG-TIAN 1977-01-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1977 26(2): 124-132. article doi:10.7498/aps.26.124 10.7498/aps.26.124 Acta Physica Sinica 26 2 1977-01-05 //www.getgobooth.com/en/article/doi/10.7498/aps.26.124 124-132 //www.getgobooth.com/en/article/doi/10.7498/aps.26.133 Author(s): TAN WEI-HAN, XU ZHI-ZHAN <br/><p>In this paper accurate solutions for the single frequency heating conditions have been obtained based on equations derived for laser plasma electron-ion coupling. The threshold values and rate of increase of various unstable oscillations under double frequency resonance heating conditions have also been obtained and compared with those under single frequency heating conditions.</p> <br/>Acta Physica Sinica. 1977 26(2): 133-148. Published 1977-01-05 Author(s): TAN WEI-HAN, XU ZHI-ZHAN <br/><p>In this paper accurate solutions for the single frequency heating conditions have been obtained based on equations derived for laser plasma electron-ion coupling. The threshold values and rate of increase of various unstable oscillations under double frequency resonance heating conditions have also been obtained and compared with those under single frequency heating conditions.</p> <br/>Acta Physica Sinica. 1977 26(2): 133-148. Published 1977-01-05 SINGLE AND DOUBLE FREQUENCY RESONANCE HEATING IN LASER-IRRADIATED PLASMAS TAN WEI-HAN, XU ZHI-ZHAN 1977-01-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1977 26(2): 133-148. article doi:10.7498/aps.26.133 10.7498/aps.26.133 Acta Physica Sinica 26 2 1977-01-05 //www.getgobooth.com/en/article/doi/10.7498/aps.26.133 133-148 //www.getgobooth.com/en/article/doi/10.7498/aps.26.149 Author(s): HUO YU-PING <br/><p>In this article, the effects of the small magnetic field perturbation on the equilibrium of plasma are discussed (the problem of the static stability of plasma). It is pointed out that a large variation in the equilibrium configuration may take place only when the small magnetic perturbations couple with the plasma modes which are almost neutally stable. Accordingly, the effects of the main classes of the stray field in Tokamak devices are analysed.</p> <br/>Acta Physica Sinica. 1977 26(2): 149-154. Published 1977-01-05 Author(s): HUO YU-PING <br/><p>In this article, the effects of the small magnetic field perturbation on the equilibrium of plasma are discussed (the problem of the static stability of plasma). It is pointed out that a large variation in the equilibrium configuration may take place only when the small magnetic perturbations couple with the plasma modes which are almost neutally stable. Accordingly, the effects of the main classes of the stray field in Tokamak devices are analysed.</p> <br/>Acta Physica Sinica. 1977 26(2): 149-154. Published 1977-01-05 THE STATIC STABILITY OF PLASMA HUO YU-PING 1977-01-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1977 26(2): 149-154. article doi:10.7498/aps.26.149 10.7498/aps.26.149 Acta Physica Sinica 26 2 1977-01-05 //www.getgobooth.com/en/article/doi/10.7498/aps.26.149 149-154 //www.getgobooth.com/en/article/doi/10.7498/aps.26.155 Author(s): GU CHAO-HAO, HU HE-SHENG <br/><p>In this paper we consider some general properties of spherically symmetric SU2 gauge fields. We prove that the SU2 gauge fields which are spherically symmetric in the most general sense may be divided into three basic types only: (1) synchro-spherieally symmetric SU2 gauge fields, (2) strict-spherically symmetric SU2 gauge fields, (3) spherically symmetric SU2 gauge fields reducible to U1 gauge fields.The spherically symmetric SU2 gauge fields with a Higgs field are investigated in detail and their types are completely determined. If such a field is regarded as due to the interaction of an electromagnetic field and electrically-charged vector bosons, then the following conclusion is obtained: In the spherically symmetric case there cannot exist an electrically-charged vector boson field around an m-unit monopole except for m =± 1, 0.</p> <br/>Acta Physica Sinica. 1977 26(2): 155-168. Published 1977-01-05 Author(s): GU CHAO-HAO, HU HE-SHENG <br/><p>In this paper we consider some general properties of spherically symmetric SU2 gauge fields. We prove that the SU2 gauge fields which are spherically symmetric in the most general sense may be divided into three basic types only: (1) synchro-spherieally symmetric SU2 gauge fields, (2) strict-spherically symmetric SU2 gauge fields, (3) spherically symmetric SU2 gauge fields reducible to U1 gauge fields.The spherically symmetric SU2 gauge fields with a Higgs field are investigated in detail and their types are completely determined. If such a field is regarded as due to the interaction of an electromagnetic field and electrically-charged vector bosons, then the following conclusion is obtained: In the spherically symmetric case there cannot exist an electrically-charged vector boson field around an m-unit monopole except for m =± 1, 0.</p> <br/>Acta Physica Sinica. 1977 26(2): 155-168. Published 1977-01-05 ON SPHERICALLY SYMMETRIC SU&lt;sub&lt;2&lt;/sub&lt; GAUGE FIELDS AND MONOPOLES GU CHAO-HAO, HU HE-SHENG 1977-01-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1977 26(2): 155-168. article doi:10.7498/aps.26.155 10.7498/aps.26.155 Acta Physica Sinica 26 2 1977-01-05 //www.getgobooth.com/en/article/doi/10.7498/aps.26.155 155-168 //www.getgobooth.com/en/article/doi/10.7498/aps.26.169 Author(s): YUE ZONG-WU, DAI YI-SHAN <br/><p></p> <br/>Acta Physica Sinica. 1977 26(2): 169-176. Published 1977-01-05 Author(s): YUE ZONG-WU, DAI YI-SHAN <br/><p></p> <br/>Acta Physica Sinica. 1977 26(2): 169-176. Published 1977-01-05 VERTEX ANGLE AND ELECTRON SELF-ENERGY RADIATION CORRECTIONS TO THE THREE-PHOTON DECAY RATE OF ORTHOPOSITRONIUM (&lt;sup&lt;3&lt;/sup&lt;S&lt;sub&lt;1&lt;/sub&lt;) YUE ZONG-WU, DAI YI-SHAN 1977-01-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1977 26(2): 169-176. article doi:10.7498/aps.26.169 10.7498/aps.26.169 Acta Physica Sinica 26 2 1977-01-05 //www.getgobooth.com/en/article/doi/10.7498/aps.26.169 169-176 //www.getgobooth.com/en/article/doi/10.7498/aps.26.177 Author(s): QING CHENG-RUI, ZHOU YU-MEI <br/><p></p> <br/>Acta Physica Sinica. 1977 26(2): 177-179. Published 1977-01-05 Author(s): QING CHENG-RUI, ZHOU YU-MEI <br/><p></p> <br/>Acta Physica Sinica. 1977 26(2): 177-179. Published 1977-01-05 A SOLUTION OF THE EQUATION FOR A MAGNETIC SURFACE WITH A FREE BOUNDARY BASED ON A ONE-DIMENSIONAL MODEL QING CHENG-RUI, ZHOU YU-MEI 1977-01-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1977 26(2): 177-179. article doi:10.7498/aps.26.177 10.7498/aps.26.177 Acta Physica Sinica 26 2 1977-01-05 //www.getgobooth.com/en/article/doi/10.7498/aps.26.177 177-179 //www.getgobooth.com/en/article/doi/10.7498/aps.26.180 Author(s): LI YANG-GUO, LIU XIAN-HUI <br/><p></p> <br/>Acta Physica Sinica. 1977 26(2): 180-183. Published 1977-01-05 Author(s): LI YANG-GUO, LIU XIAN-HUI <br/><p></p> <br/>Acta Physica Sinica. 1977 26(2): 180-183. Published 1977-01-05 SPIN FLIP EFFECTS IN THE SCATTERING OF HIGH ENERGY PROTON BY NUCLEI LI YANG-GUO, LIU XIAN-HUI 1977-01-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1977 26(2): 180-183. article doi:10.7498/aps.26.180 10.7498/aps.26.180 Acta Physica Sinica 26 2 1977-01-05 //www.getgobooth.com/en/article/doi/10.7498/aps.26.180 180-183 //www.getgobooth.com/en/article/doi/10.7498/aps.26.184 Author(s): WANG CHAO-JUN, HE JING-TANG, CHANG YING-PING, ZHENG ZHI-PENG, TANG XIAO-WEI <br/><p></p> <br/>Acta Physica Sinica. 1977 26(2): 184-186. Published 1977-01-05 Author(s): WANG CHAO-JUN, HE JING-TANG, CHANG YING-PING, ZHENG ZHI-PENG, TANG XIAO-WEI <br/><p></p> <br/>Acta Physica Sinica. 1977 26(2): 184-186. Published 1977-01-05 FABRICATION OF A PARTICLE DETECTOR WITH A TOTAL THICKNESS OF 25μg/cm&lt;sup&lt;2&lt;/sup&lt; WANG CHAO-JUN, HE JING-TANG, CHANG YING-PING, ZHENG ZHI-PENG, TANG XIAO-WEI 1977-01-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1977 26(2): 184-186. article doi:10.7498/aps.26.184 10.7498/aps.26.184 Acta Physica Sinica 26 2 1977-01-05 //www.getgobooth.com/en/article/doi/10.7498/aps.26.184 184-186

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