Proving test on reliability for BWR fuel assemblies.

Development of Capacitance Void Fraction Measurement Method for BWR Test

USE OF Cs-137 CALIBRATION SOURCE IN EVALUATION OF BWR FUEL BURNUP

The source is covered by a watertight steel cylinder which is fixed inside a 0.65 m long piece of ASEA-ATOM type BWR fuel channel. Inside the cylinder there is a 37 GBq Cs-137 pellet fixed to a wagon which can be driven up and down by means of a stepping motor. By moving the source, the repeatability of the geometrical positioning is attained. The amplitude and scanning speed are controlled by ...

Evolution of Reliability Assessment in Pcb Assemblies

Very low failure rates, down to 10 FIT are now currently expected by electronic system manufacturers. In the same time, severe conditions of utilisation are common in most of industrial and commercial applications, like automotive sector for example. In order to assess this reliability “challenge”, process control, design and technological solutions have to be optimised to guarantee almost no d...

Printed Wiring Assemblies : Reliability Stress Screening

Page 1 Scope . . . . . . . . . . . . . . . . . . . . . . . . 2 2 Field of application . . . . . . . . . . . . . . . . . . . 2 3 Reference . . . . . . . . . . . . . . . . . . . . . . . 2 4 Definitions . . . . . . . . . . . . . . . . . . . . . . . . 2 5 Sampling . . . . . . . . . . . . . . . . . . . . . . . 3 5.1 Sample preparation . . . . . . . . . . . . . . . . . 3 5.2 RSS time planning . . . ....

An approach for lifetime reliability analysis using theorem proving

Article history: Received 1 November 2010 Received in revised form 20 February 2012 Accepted 4 April 2013 Available online 7 June 2013