Topic
Shields
About: Shields is a research topic. Over the lifetime, 1456 publications have been published within this topic receiving 10896 citations.
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Journal Article•
TL;DR: In this paper, the results of several experiments with gamma-sensitive ionization chambers in light-water reactor shields are reported, showing that the effects of changes in core and shield configurations are greatly reduced.
Abstract: The principal advantage to be gained by using gamma radiation is that the effects of changes in core and shield configurations are greatly reduced. This is because the high neutron attenuation of water restricts the effective volume through which a neutron detector sees the core to a relatively narrow region around the path of shortest lengih. A gamma-sensitive detector is not so restricted and has approximately equal effective sensitivity to gamma rays emitted anywhere in a rather large volume. The results of several experiments with gamma-sensitive ionization chambers in light-water reactor shields are reported. (N.W.R.)
6 citations
Patent•
22 Jun 1981
TL;DR: In this paper, the present invention is directed to graphite shields or shields of other materials which may react chemically or be oxidized in a vacuum furnace but which when condensed do not readily conduct electricity.
Abstract: The present invention is directed to graphite shields (or shields of other materials which may react chemically or be oxidized in a vacuum furnace but which when condensed do not readily conduct electricity) or graphite shield liners used to protect electrical insulating devices from having electrical shorting path means develop thereon.
6 citations
Patent•
13 Sep 1996
TL;DR: In this article, the outer end portions of which shields are terminated by being clampingly retained between tapered surfaces (48,52, 50,54) of the first, second and third termination rings (42,44,46).
Abstract: A cable (10) has a plurality of conductors (12) with individual conductive shields (14) and one common shield (16) for all conductors, the outer end portions of which shields are terminated by being clampingly retained between tapered surfaces (48,52; 50,54) of the first, second and third termination rings (42,44,46).
6 citations
TL;DR: In this paper, measurements on the flux creep properties of a series of thick-film YBCO tubes and rings are reported, and their potential for use in large-area flux transformers and shields for superconducting quantum interference device (SQUID) magnetometers is considered.
Abstract: Measurements on the flux creep properties of a series of thick-film YBCO tubes and rings that have been processed at a range of different temperatures are reported, and their potential for use in large-area flux transformers and shields for superconducting quantum interference device (SQUID) magnetometers is considered. It is found that films showing flux creep rates adequate for flux transformer or low-field ( approximately 100- mu T) magnetic shielding applications can be made without recourse to special doping or heat treatment techniques. Application of flux creep theory to the data and observations of the microstructure in similar films implies that the scale over which the supercurrents are flowing is on the order of tens of mm and that this would place a lower limit on fabrication accuracy. For screening the earth's magnetic field, the films reported here would be adequate; for higher fields, thicker or multiple shields may by required. >
6 citations