Propagation of capture ? radiation in a uniform spherical shield

1966 ◽  
Vol 21 (5) ◽  
pp. 1062-1063 ◽  
Author(s):  
B. K. Fedyushin
Keyword(s):  
Spherical Shield

Shielding Effectiveness Analysis of a Spherical Shield Made of Medium Conductivity Material against Low-Frequency Electric Field

2015 ◽  
Vol 734 ◽  
pp. 858-863
Author(s):  
Ming Yang Li ◽  
Chong Qing Jiao ◽  
Jing Kai Nie
Keyword(s):  
Electric Field ◽  
Low Frequency ◽  
Field Approximation ◽  
Static Field ◽  
Analytic Formula ◽  
Shielding Effectiveness ◽  
Effectiveness Analysis ◽  
Spherical Shield ◽  
Frequency Electric Field ◽  
Medium Conductivity

With quasi-static field approximation, an analytic formula is derived for shielding effectiveness analysis of a spherical shield made of medium conductivity material (10 S/m-1000 S/m) against low-frequency electric field. The effects of frequency, material conductivity, and shield dimensions on shielding effectiveness are investigated. It is shown that the shielding effectiveness decreases at first and then increases with the frequency increasing from DC to MHz if the thickness of the shield is large. However, the shielding effectiveness decreases versus the increase of frequency continuously if the thickness is small. The shielding effectiveness can be enhanced by increasing either the material conductivity or the shield thickness. This research is helpful for the evaluation of composite conductive material for electromagnetic shielding applications.

Gamma-ray buildup factor for a spherical shield

1973 ◽  
Vol 34 (2) ◽  
pp. 167-169 ◽  
Author(s):  
V. A. Zharkov ◽  
A. A. Chudotvorov ◽  
A. F. Kolesnikov
Keyword(s):  
Gamma Ray ◽  
Buildup Factor ◽  
Spherical Shield

Reflectivity of spherical shield

1983 ◽  
Vol 26 (1) ◽  
pp. 78-88 ◽  
Author(s):  
S. S. Vinogradov
Keyword(s):  
Spherical Shield
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