Results 311 to 320 of about 800,089 (361)
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Shielding effectiveness measurements for ferromagnetic shields
2007 IEEE Instrumentation & Measurement Technology Conference IMTC 2007, 2007This paper proposes a new way to measure the shielding effectiveness of ferromagnetic shields. The procedure combines an experimental characterization of the shielding material to a forthcoming numeric simulation. Magnetic hysteresis is reduced to a series of equivalent B-H linear relations through an optimization procedure applied to a measured set of
MARRACCI, MIRKO +2 more
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Applications of nuclear shielding
ChemInform, 2001AbstractFor Abstract see ChemInform Abstract in Full Text.
S.Kuroki, N.Asakawa, H.Yasunaga
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Shielding Effectiveness Measurements for Ferromagnetic Shields
IEEE Transactions on Instrumentation and Measurement, 2009This paper proposes a new way to measure the shielding effectiveness of ferromagnetic shields. The procedure combines an experimental characterization of the shielding material and numerical simulations. In a first case, magnetic hysteresis is reduced to a series of equivalent B -H linear relations through an optimization procedure that is applied to a
S. DI FRAIA +3 more
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Journal of the American Medical Association, 1958 The amount of radiation delivered to the testes in x-ray examinations must be kept as small as possible, consistent with the clinical needs of the patient. Important means of accomplishing this are the elimination of unnecessary examinations and careful coning of the x-ray beam; but, even when coning is carefully done, the testes receive a relatively ...
Paul C. Hodges +2 more
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Electrical Engineering, 1942
AS compared to transmission lines, it is more important that overhead ground wires or vertical masts over substations be correctly located so as to provide shielding of the structure against direct strokes of lightning. In a previously published paper1 the authors discussed the shielding characteristics required for transmission lines.
G. D. McCann, C. M. Lear, C. F. Wagner
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AS compared to transmission lines, it is more important that overhead ground wires or vertical masts over substations be correctly located so as to provide shielding of the structure against direct strokes of lightning. In a previously published paper1 the authors discussed the shielding characteristics required for transmission lines.
G. D. McCann, C. M. Lear, C. F. Wagner
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Breast bismuth shielding in coronary CT angiography: To shield or not to shield?
Physica Medica, 2016Introduction Despite the use of bismuth shields to reduce dose to eye lens and thyroid from CT scans has been reported efficient and recommended, there are conflicting opinions regarding breast bismuth shielding during thoracic CT. Purpose To assess breast dose reduction and diagnostic quality degradation associated with the use of bismuth shields
Kostas Perisinakis +4 more
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Shielding Effectiveness Theory of Shielding
2019The hypothesis upon which the present accepted theory of shielding consisting of the equation SE = R + A + B is based is presented. The hypothesis is based on wave theory and the analogy between transmission lines and the penetration of a wave through a barrier. A detailed analysis, comparing the value of the current delivered to a load impedance using
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Dynamic and Debye shielding and anti-shielding
Physics of Plasmas, 1996While shielding in collisional plasmas obeys the standard Debye result, shielding in collisionless plasmas is far more complex than commonly believed. For example, a one-dimensional (highly magnetized), immobile-ion plasma can, in some circumstances, anti-shield a positive test charge; i.e.
Joel Fajans, A. B. Reimann, C. Hansen
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Loop-shield-loop shielding effectiveness
IEEE Transactions on Electromagnetic Compatibility, 1999The 1967 formulation by Moser of the shielding effectiveness of a metal sheet on a small loop is extended to loop-to-loop coupling. The integration of flux through the receiving loop simply adds another J/sub 0/(ka) Bessel function to the Moser integrands; the result is a monotonic variation of coupling with loop spacing, unlike the original results.
R.C. Hansen, J.R. Moser
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Simulation of the shielding clothing Shielding Effectiveness
2013 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference, 2013Shielding clothing is widely used in our life to protect people from the hazard of the electromagnetic energy. Shielding Effectiveness(SE) is used to evaluate the performance of the shielding clothing. In this paper simulate software COSMOL is used to simulate the SE of the shielding clothing.
Sun Guangjiong +6 more
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