Hybrid probe particles comprising a nanoparticle of gold of diameter in the range extending from 2 to 30 nm on the surface of which, on the one hand, at least one, and preferably from one to 100, organic probe molecules are grafted by gold-sulphur bonds and on the other hand, at least 10, and preferably 10 to 10000, molecules with luminescent activity, as well as their preparation process. In certain respects, one or more tunnels are formed in or integral to an outer shell for a helmet to provide ventilation, example. The place of installation of IC tag 9 is preferably chosen to be a surface of the forged component part which is not machined subsequent to forging. The collection of mass spectra is filtered using the background noise estimate, producing a filtered collection of one or more mass spectra. The bubble-generating unit on the first component generates bubble in the first area and the second area when a fluid fills the vacancy between the first component and the second component.