Patent · US Expired

Device for measuring neutron flux in a nuclear reactor

US4157277A · kind A · utility

8Cited by
4References
9Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 20, 1977
Grant dateJun 5, 1979
Priority date
Expiry dateSep 20, 1997

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02E30/30
  • WIPO fieldEngines, pumps, turbines
  • WIPO sectorMechanical engineering

Abstract

A neutron guide constituted by two superposed and separable tubular elements extends from the reactor core to the immediate vicinity of the bottom wall of the reactor vessel directly above a neutron detection chamber located outside the vessel. The upper element containing a neutron-emissive medium comprises a closed tube filled with inert gas and engaged coaxially with the lower element which is positioned within a support sleeve. The lower element is provided with another closed sleeve filled with inert gas and terminating near the internal surface of the bottom of the reactor vessel.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.