Related Experiment Video
Updated: Jun 24, 2026

The Quantification of Injectability by Mechanical Testing
Published on: May 13, 2020
Syringe shape and positioning relative to efficiency volume inside dose calibrators and its role in nuclear medicine
J A M Santos1, M F Carrasco, J Lencart
1Serviço de Física Médica, Instituto Português de Oncologia do Porto Francisco Gentil, E.P.E., Rua Dr. António Bernardino de Almeida, 4200072 Porto, Portugal. a.miranda@portugalmail.pt
Abstract:
A careful analysis of geometry and source positioning influence in the activity measurement outcome of a nuclear medicine dose calibrator is presented for (99m)Tc. The implementation of a quasi-point source apparent activity curve measurement is proposed for an accurate correction of the activity inside several syringes, and compared with a theoretical geometric efficiency model. Additionally, new geometrical parameters are proposed to test and verify the correct positioning of the syringes as part of acceptance testing and quality control procedures.
Related Concept Videos
Glassware Calibration
Volumetric flasks: Volumetric flasks are designed to prepare aqueous solutions of precise volumes accurately with a calibration line on the neck. To calibrate a volumetric flask, it is important to fill it with distilled...
Instrument Calibration
Analytical Balance Calibration
An analytical balance measures mass and requires regular calibration to...
Dosage Regimen: Individualization
