NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.

Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.

U.S. flag

An official website of the United States government

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.

PUBLICATIONS

Standardization of I-124 by three liquid scintillation-based methods

Published

Author(s)

Denis E. Bergeron, Leticia S. Pibida, Brian E. Zimmerman, Jeffrey T. Cessna, Ryan P. Fitzgerald

Abstract

A solution of 124I was standardized for activity by 4πβ(LS)-γ(NaI) live-timed anticoincidence (LTAC) counting, with confirmatory measurements by triple-to-double coincidence ratio (TDCR) and CIEMAT-NIST efficiency tracing (CNET) liquid scintillation counting. The LTAC-based standard was shown to be in agreement (within k = 1 uncertainties) with previous measurements at NIST and elsewhere. Calibration settings for radionuclide calibrators were determined and a discrepancy with literature values, partially due to a calibration methodology dependent upon an erroneous setting for 18F, was identified and explained.
Citation
Applied Radiation and Isotopes
Volume
154
Pub Type
Journals

Download Paper

https://doi.org/10.1016/j.apradiso.2019.108849

Keywords

Iodine-124, liquid scintillation counting, Monte Carlo, dose calibrator, positron emission tomography, quantitative imaging, Fluorine-18
Medical imaging, Precision medicine, Health, Nuclear physics and Radiation

Citation

Bergeron, D. , Pibida, L. , Zimmerman, B. , Cessna, J. and Fitzgerald, R. (2019), Standardization of I-124 by three liquid scintillation-based methods, Applied Radiation and Isotopes, [online], https://doi.org/10.1016/j.apradiso.2019.108849 (Accessed October 8, 2025)

Issues

If you have any questions about this publication or are having problems accessing it, please contact [email protected].

Created August 9, 2019, Updated March 12, 2020
Was this page helpful?