Standardization of I-124 by three liquid scintillation-based methods.
Appl Radiat Isot
; 154: 108849, 2019 Dec.
Article
in En
| MEDLINE
| ID: mdl-31465950
ABSTRACT
A solution of 124I was standardized for activity by 4πß(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 kâ¯=â¯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.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
Appl Radiat Isot
Year:
2019
Document type:
Article