Syringe shape and positioning relative to efficiency volume inside dose calibrators and its role in nuclear medicine quality assurance programs

Appl Radiat Isot. 2009 Jun;67(6):1104-9. doi: 10.1016/j.apradiso.2009.01.084. Epub 2009 Feb 5.


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.

MeSH terms

  • Nuclear Medicine / instrumentation*
  • Nuclear Medicine / standards
  • Quality Control*
  • Radiation Dosage
  • Syringes / standards*
  • Technetium


  • Technetium