head of measurement for determining the pressure of fission gases released within bars of nuclear fuel at a high rate of irragiamento and method for instrumentation ofbars with the head

摘要

A device is disclosed for applying a head fitted with a measuring instrument to a nuclear fuel bar, the device comprising a casing containing a drilling tip and means for stopping the drilling tip as a bore has been formed through the bar plug and an instrument, such as a pressure gauge for measuring the pressure of the released fission gases, or another instrument adapted to measure a parameter of interest. A method for applying a head containing a measuring instrument to a nuclear fuel bar is also described.