Monte Carlo simulation of activity measurement of 123I, 111In and 153Sm with a radionuclide calibrator

Veronika Olsovcová

doi:10.1016/j.apradiso.2009.11.016

Monte Carlo simulation of activity measurement of 123I, 111In and 153Sm with a radionuclide calibrator

Appl Radiat Isot. 2010 Jul-Aug;68(7-8):1383-7. doi: 10.1016/j.apradiso.2009.11.016. Epub 2009 Nov 13.

Author

Veronika Olsovcová¹

Affiliation

¹ Czech Metrology Institute, Prague, Czech Republic. volsovcova@cmi.cz

PMID: 19963393
DOI: 10.1016/j.apradiso.2009.11.016

Abstract

The response of radionuclide calibrators for radionuclides with high abundances of high energy X-rays is very sensitive to changes in the source geometry. The magnitude of this effect was explored for Bqmetr (Konsorcium BQM, CR) calibrators with (123)I, (111)In and (153)Sm in several vial and syringe geometries. Dependencies of chamber responses on solution volume and container position were calculated using MCNP transport code. The possibility of usage of an additional copper filter to reduce chamber sensitivity was studied and found to be suitable.