Mathematical calibration of in vivo spectrometers

Aim of the study

The purpose of this intent is to start using numerical human phantoms, also known as voxel phantoms, in the calibration of whole body spectrometers.

Implementation

To start with, a literature survey to get information on voxel phantoms used in different countries and simulation programs for the purpose were done. In addition, a visit to IRSN, France, was made to get familiar with the use of phantoms, necessary computer codes and numerical specifications of the detectors. The method will be applied to the spectrometers used at STUK.

Dissemination and exploitation of the results

These numerical phantoms provide necessary corrections to the measurement results due to height and weight differences of the measured people. The enhanced accuracy will be obtained as the absorption of the different radiation types to different tissue types, which can be taken into account. In addition, uneven distribution of the contamination in the body can be taken into account in the measurement results. A scientific report will be produced during 2010.

Collaborators

IRSN, France

Timetable

2007–2010

Responsible scientists

Jussi Huikari

Page updated 17/05/2009