  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
