Neutron-absorbent control cluster for a nuclear reactor
US5742655A · kind A · utility
10Cited by
6References
8Claims
0Family size
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Key dates
| Filing date | Dec 12, 1995 |
| Grant date | Apr 21, 1998 |
| Priority date | — |
| Expiry date | Dec 12, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E30/30
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A control cluster for a water cooled and moderated nuclear reactor, comprises a spider and rods suspended from the spider. Each rod contains neutron-absorbing material. In a lower portion of each rod, the material is a metal neutron absorber. In an upper portion, it is a stack of pellets of boron carbide B.sub.4 C. In a middle fraction occupying a height lying in the range 35% to 45% of the total height, it is zirconium diboride ZrB.sub.2 isotopically enriched in boron 10 or hafnium diboride HfB2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.