Tungsten Behaviour at High Temperature and High Stress∗

Recently reported results on the behaviour of the tungsten under conditions expected in the Neutrino Factory target have strengthened the case for a solid target option for the Neutrino Factory. This paper gives a description of the measurements of the surface motion of tungsten wires, stressed by a pulsed current, using a Laser Doppler Vibrometer in order to measure tungsten properties at high temperature and high stress. The experimental results have been compared with modelling results, and the results of previous lifetime tests have been confirmed.