Figure 4.
Mass energy-absorption coefficient (μen/p) ratios between polystyrene and air as a function of energy. Data taken from the National Institute of Standards and Technology.26
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.