//www.getgobooth.com/ 必威体育下载 daily 15 2024-08-20 10:33:40 apsoffice@iphy.ac.cn apsoffice@iphy.ac.cn 2024-08-20 10:33:40 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.19.689 Author(s): <br/><p></p> <br/>Acta Physica Sinica. 1963 19(11): 689-704. Published 2005-08-05 Author(s): <br/><p></p> <br/>Acta Physica Sinica. 1963 19(11): 689-704. Published 2005-08-05 ЗАКОН СОХРАНЕНИЯ ЭНЕРГИИ-ИМПУЛЬСА В ОБЩЕЙ ТЕОРИИ ОТНОСИТЕЛЬНОСТИ 2005-08-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1963 19(11): 689-704. article doi:10.7498/aps.19.689 10.7498/aps.19.689 Acta Physica Sinica 19 11 2005-08-05 //www.getgobooth.com/en/article/doi/10.7498/aps.19.689 689-704 //www.getgobooth.com/en/article/doi/10.7498/aps.19.705 Author(s): WANG CHIH-CHIANG, SUI MIN-CHIO <br/><p>In this paper various factors influencing the image quality of plane grating spectrometer are discussed in detail. By means of vector elgebra a general formula is given for the form of the spectral lines in relation to the form of the entrance slit. A formula describing the angular dispersion of the spectral line resulting from a circular slit is also given. Investigation on the optical performance of the Ebert-Fastie grating spectrometer shows that among various residual optical aberrations, due to unsymmetrical disposition of the incident and diffracting beams with respect to the grating surface, coma is the most serious image defect. This can however be corrected by changing the focal length of one of its reflecting mirrors and placing it at a definite distance from the other mirror. It is also shown that residual aberrations can be well eliminated by placing an aspherical correcting plate near the grating surface. By the latter means there is the potentiality of greatly improving the performance of the instrument; either the volume of the instrument may be greatly reduced where shorter focal length optical systems can be used, or much better light gathering capacity can be achieved without sacrificing its monochrometicity when the spectrometer is used as a monochrometor.</p> <br/>Acta Physica Sinica. 1963 19(11): 705-716. Published 2005-08-05 Author(s): WANG CHIH-CHIANG, SUI MIN-CHIO <br/><p>In this paper various factors influencing the image quality of plane grating spectrometer are discussed in detail. By means of vector elgebra a general formula is given for the form of the spectral lines in relation to the form of the entrance slit. A formula describing the angular dispersion of the spectral line resulting from a circular slit is also given. Investigation on the optical performance of the Ebert-Fastie grating spectrometer shows that among various residual optical aberrations, due to unsymmetrical disposition of the incident and diffracting beams with respect to the grating surface, coma is the most serious image defect. This can however be corrected by changing the focal length of one of its reflecting mirrors and placing it at a definite distance from the other mirror. It is also shown that residual aberrations can be well eliminated by placing an aspherical correcting plate near the grating surface. By the latter means there is the potentiality of greatly improving the performance of the instrument; either the volume of the instrument may be greatly reduced where shorter focal length optical systems can be used, or much better light gathering capacity can be achieved without sacrificing its monochrometicity when the spectrometer is used as a monochrometor.</p> <br/>Acta Physica Sinica. 1963 19(11): 705-716. Published 2005-08-05 ON THE IMAGE QUALITY OF PLANE GRATING SPECTROMETER WANG CHIH-CHIANG, SUI MIN-CHIO 2005-08-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1963 19(11): 705-716. article doi:10.7498/aps.19.705 10.7498/aps.19.705 Acta Physica Sinica 19 11 2005-08-05 //www.getgobooth.com/en/article/doi/10.7498/aps.19.705 705-716 //www.getgobooth.com/en/article/doi/10.7498/aps.19.717 Author(s): HO KAI-YUAN, WU PAO-CHING <br/><p>The magnetic anisotropy of a 50% Ni-50% Fe alloy, after (1) cold reduction and (2) cold reduction and annealing at various temperatures, has been determined from magnetic torque curves, from which the types of the rolling and recrystallization textures in the specimens have been deduced. In the specimens with perfect cube texture, the magnetic anisotropy constant k1 has been determined; the result is consistent with that of other authors' using single crystal specimens. The k1 value in the cold rolled specimens is, however, larger. The factors which may possibly influence the determined k1 values are considered; the influences due to the degree of ordering and the elastic energy induced by anisotropic magnetostriction are finally discussed.</p> <br/>Acta Physica Sinica. 1963 19(11): 717-726. Published 2005-08-05 Author(s): HO KAI-YUAN, WU PAO-CHING <br/><p>The magnetic anisotropy of a 50% Ni-50% Fe alloy, after (1) cold reduction and (2) cold reduction and annealing at various temperatures, has been determined from magnetic torque curves, from which the types of the rolling and recrystallization textures in the specimens have been deduced. In the specimens with perfect cube texture, the magnetic anisotropy constant k1 has been determined; the result is consistent with that of other authors' using single crystal specimens. The k1 value in the cold rolled specimens is, however, larger. The factors which may possibly influence the determined k1 values are considered; the influences due to the degree of ordering and the elastic energy induced by anisotropic magnetostriction are finally discussed.</p> <br/>Acta Physica Sinica. 1963 19(11): 717-726. Published 2005-08-05 MAGNETIC TORQUE STUDIES OF THE ANISOTROPY OF A GRAIN ORIENTED NICKEL-IRON ALLOY HO KAI-YUAN, WU PAO-CHING 2005-08-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1963 19(11): 717-726. article doi:10.7498/aps.19.717 10.7498/aps.19.717 Acta Physica Sinica 19 11 2005-08-05 //www.getgobooth.com/en/article/doi/10.7498/aps.19.717 717-726 //www.getgobooth.com/en/article/doi/10.7498/aps.19.727 Author(s): CHEN CHI, LI HUA-LIN, DIN JIA-YEN <br/><p>A formula is derived for the intensity of mutually-induced X-ray fluorescence between elements, and is found to be in agreement with experiment.</p> <br/>Acta Physica Sinica. 1963 19(11): 727-734. Published 2005-08-05 Author(s): CHEN CHI, LI HUA-LIN, DIN JIA-YEN <br/><p>A formula is derived for the intensity of mutually-induced X-ray fluorescence between elements, and is found to be in agreement with experiment.</p> <br/>Acta Physica Sinica. 1963 19(11): 727-734. Published 2005-08-05 ON THE INTENSITY OF MUTUALLY-INDUCED X-RAY FLUORESCENCE BETWEEN ELEMENTS CHEN CHI, LI HUA-LIN, DIN JIA-YEN 2005-08-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1963 19(11): 727-734. article doi:10.7498/aps.19.727 10.7498/aps.19.727 Acta Physica Sinica 19 11 2005-08-05 //www.getgobooth.com/en/article/doi/10.7498/aps.19.727 727-734 //www.getgobooth.com/en/article/doi/10.7498/aps.19.735 Author(s): <br/><p></p> <br/>Acta Physica Sinica. 1963 19(11): 735-740. Published 2005-08-05 Author(s): <br/><p></p> <br/>Acta Physica Sinica. 1963 19(11): 735-740. Published 2005-08-05 ЭМПИЕРИЧЕСКАЯ СВЯЗЬ МЕЖДУ ИНТЕНСИВНОСТЯМИ ДИФРАКЦИИ ЭЛЕКТРОНОВ И СТРУКТУРНЫМИ АМПИТУДАМИ И ЕЁ ПРИМЕНЕНИЕ В СТРУКТУРНОМ АНАЛИЗЕ 2005-08-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1963 19(11): 735-740. article doi:10.7498/aps.19.735 10.7498/aps.19.735 Acta Physica Sinica 19 11 2005-08-05 //www.getgobooth.com/en/article/doi/10.7498/aps.19.735 735-740 //www.getgobooth.com/en/article/doi/10.7498/aps.19.741 Author(s): WANG CHIH-CHIANG <br/><p>The assignment of aberration tolerances for optical systems suffering from wave-front aberrations greater than λ/4 is worth further studying. In this paper it is shown that "low" contrast resolving power of optical systems can be taken as an appropriate criterion for assessing image quality, where the optical transfer function can be evaluated approximately in terms of the sums of Legendre polynomials. Accordingly, the best program of aberration correction and tolerences in the case where certain aberration constants are inevitably present and others are adjustable in optical design can be obtained. The results so obtained as applied to aberrations of small magnitude comparable to λ/4 conform well to the Strehl Deffinitionshelligkeit method.</p> <br/>Acta Physica Sinica. 1963 19(11): 741-752. Published 2005-08-05 Author(s): WANG CHIH-CHIANG <br/><p>The assignment of aberration tolerances for optical systems suffering from wave-front aberrations greater than λ/4 is worth further studying. In this paper it is shown that "low" contrast resolving power of optical systems can be taken as an appropriate criterion for assessing image quality, where the optical transfer function can be evaluated approximately in terms of the sums of Legendre polynomials. Accordingly, the best program of aberration correction and tolerences in the case where certain aberration constants are inevitably present and others are adjustable in optical design can be obtained. The results so obtained as applied to aberrations of small magnitude comparable to λ/4 conform well to the Strehl Deffinitionshelligkeit method.</p> <br/>Acta Physica Sinica. 1963 19(11): 741-752. Published 2005-08-05 LOW CONTRAST RESOLVING POWER AND ABERRATION TOLERANCE OF OPTICAL SYSTEMS WANG CHIH-CHIANG 2005-08-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1963 19(11): 741-752. article doi:10.7498/aps.19.741 10.7498/aps.19.741 Acta Physica Sinica 19 11 2005-08-05 //www.getgobooth.com/en/article/doi/10.7498/aps.19.741 741-752 //www.getgobooth.com/en/article/doi/10.7498/aps.19.753 Author(s): LI YIN-YUAN, ZHU YAN-QING <br/><p>In this paper, calculation has been carried out for the localized modes of spin waves around a magnetic impurity atom in a ferromagnetic of the simple cubic structure. There are three symmetry types, i.e., the s-type, the p-type and the dr-type mode. The wave functions and the curves of the energy levels against the parameter J′S′/JS of these modes are obtained. Next, the types of localized modes which may possibly exist in ferromagnetics of the bcc or the fcc structure are discussed. It is pointed out that probably the s-type mode is the only one to be expected in actual specimens. With the criterion that the Curie point of the specimen should increase with the concentration of impurity, several alloys are suggested for the experimental observation of the localized modes of spin waves. Finally, a general analysis of the spin quantum number of the spin wave states leads to the conclusion that it is impossible to excite the scattered modes with k0≠0 as well as the localized modes by the electromagnetic radiation.</p> <br/>Acta Physica Sinica. 1963 19(11): 753-763. Published 2005-08-05 Author(s): LI YIN-YUAN, ZHU YAN-QING <br/><p>In this paper, calculation has been carried out for the localized modes of spin waves around a magnetic impurity atom in a ferromagnetic of the simple cubic structure. There are three symmetry types, i.e., the s-type, the p-type and the dr-type mode. The wave functions and the curves of the energy levels against the parameter J′S′/JS of these modes are obtained. Next, the types of localized modes which may possibly exist in ferromagnetics of the bcc or the fcc structure are discussed. It is pointed out that probably the s-type mode is the only one to be expected in actual specimens. With the criterion that the Curie point of the specimen should increase with the concentration of impurity, several alloys are suggested for the experimental observation of the localized modes of spin waves. Finally, a general analysis of the spin quantum number of the spin wave states leads to the conclusion that it is impossible to excite the scattered modes with k0≠0 as well as the localized modes by the electromagnetic radiation.</p> <br/>Acta Physica Sinica. 1963 19(11): 753-763. Published 2005-08-05 LOCALIZED MODES OF SPIN WAVES IN THE CUBIC FERROMAGNETICS LI YIN-YUAN, ZHU YAN-QING 2005-08-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1963 19(11): 753-763. article doi:10.7498/aps.19.753 10.7498/aps.19.753 Acta Physica Sinica 19 11 2005-08-05 //www.getgobooth.com/en/article/doi/10.7498/aps.19.753 753-763 //www.getgobooth.com/en/article/doi/10.7498/aps.19.764 Author(s): <br/><p></p> <br/>Acta Physica Sinica. 1963 19(11): 764-766. Published 2005-08-05 Author(s): <br/><p></p> <br/>Acta Physica Sinica. 1963 19(11): 764-766. Published 2005-08-05 2005-08-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1963 19(11): 764-766. article doi:10.7498/aps.19.764 10.7498/aps.19.764 Acta Physica Sinica 19 11 2005-08-05 //www.getgobooth.com/en/article/doi/10.7498/aps.19.764 764-766 //www.getgobooth.com/en/article/doi/10.7498/aps.19.767 Author(s): <br/><p></p> <br/>Acta Physica Sinica. 1963 19(11): 767-770. Published 2005-08-05 Author(s): <br/><p></p> <br/>Acta Physica Sinica. 1963 19(11): 767-770. Published 2005-08-05 2005-08-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1963 19(11): 767-770. article doi:10.7498/aps.19.767 10.7498/aps.19.767 Acta Physica Sinica 19 11 2005-08-05 //www.getgobooth.com/en/article/doi/10.7498/aps.19.767 767-770

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