Figure 7.
Experimental results. (a) PA signal amplitude obtained with and without dog frontal skull bone. The skull bone was placed in the detection path. (b) Corresponding frequency spectrum of the experimental PA signals.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.