Dynamic Response of Graphitic Targets with Tantalum Cores Impacted by Pulsed 440-GeV Proton Beams

Figure 15

Frequency analysis of the radial surface velocity presented in Figure 14. The normalized power density within the first 100 μs after beam impact is shown for beam impacts with intensities of 1 × 10¹¹ and 6 × 10¹¹ ppp of samples #4 Premium PyC (a), #7 Sepcarb (b), and #10 POCO FOAM (c). The inset in (c) shows the zoomed region in which the split radial signal is expected.

(a)

(b)

(c)