Response of a tungsten powder target to an incident high energy proton   beam
  The experiment described in this paper is the first study of the response of a static tungsten powder sample to an impinging high energy proton beam pulse. The experiment was carried out at the HiRadMat facility at CERN. Observations include high speed videos of a proton beam induced perturbation of the powder sample as well as data from a laser Doppler vibrometer measuring the oscillations of the powder container. A comparison with a previous analogous experiment which studied a proton beam interaction with mercury is made 
Ottone Caretta, Tristan Davenne, Chris Densham, Mike Fitton, Peter   Loveridge, Joey O' Dell, N. Charitonidis, I. Efthymiopo...
physics.acc-ph hep-ex physics.ins-det