Primary standardization of Ra-224 activity by liquid scintillation counting

Napoli, E; Cessna, JT; Fitzgerald, R; Pibida, L; Colle, R; Laureano-Perez, L; Zimmerman, BE; Bergeron, DE

Bergeron, DE (corresponding author), NIST, Phys Measurement Lab, Gaithersburg, MD 20899 USA.

APPLIED RADIATION AND ISOTOPES, 2020; 155 ():

Abstract

A standard for activity of Ra-224 in secular equilibrium with its progeny has been developed, based on triple-to-double coincidence ratio (TDCR) liqui......

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