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.
a) Simplified schematic diagram of a) single pixel circuitry and b) physical layout in SPAD Cherenkov detector (VLQC: variable load quenching circuit); c) Normalized Cherenkov emission in water (blue, dashed) and in tissue (purple), and the photon detection efficiency (PDE) of the SPAD detector (orange) [11]; d) Experimental set-up in the clinical radiotherapy suite.
