An official website of the United States government
Here’s how you know
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.
We have performed a series of measurements on a Pu-241 solution using the triple-to-double coincidence ratio (TDCR) liquid scintillation technique. A similar series of measurements in 2007 revealed significant discord between activity values determined via TDCR and those determined via efficiency tracing and Am-241-ingrowth LS methods. We describe how consideration of photomultiplier statistics, internal scintillation photon reflection effects, photopeak rejection, and count correction for impurities brought the new series of TDCR measurements into improved accord with other techniques.
Bergeron, D.
and Zimmerman, B.
(2010),
TDCR Measurements on Pu-241 at NIST, Radiocarbon, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=906599
(Accessed June 3, 2023)