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.
Relative intensities for the Wolter II microscope as a function of condenser focal length with an objective focal length of 500 mm, 750 mm, and 1000 mm. (a) Guide-to-condenser distance GCD = 500 mm; (b) GCD = 1000 mm. Simulations used 106 rays. Here, the working distance is ZsE. The vertical scale is the same as in Figure 4 for the ease of comparison.
