Experience of development and testing of a new model of an anthropomorphic radiodosimetric phantom of the human body ardf-10 "ROMAN"

Abstract

In 2006-2010 by the commission of the Radiation and Nuclear Safety Authority in Finland applied scientific research and development of a new model of an anthropomorphic radiodosimetric phantom of the human body (the Phantom) were performed, after the development of the production technology and initial testing in 2010-2012 the first serial copy of the Phantom under the name ARDF-10 «ROMAN» was produced.

The main application of the new model of the Phantom ARDF-10 «ROMAN»:

- increase of the precision of calibration and implementation of the periodic monitoring of Whole body counters (WBC) equipment, standardization of measurement procedure for inter-laboratory comparisons of the incorporated activity.

- metrological support of the development and implementation of new methods for human radiation spectrometry:

• identification of radionuclide content of incorporated activity in the human body;

• measurements of the activity of incorporated technogenic and natural radionuclides in the whole body and in the lungs;

• measurements of ⁹⁰Sr content in the bone tissue.

- study of the mechanisms of the intake, distribution, accumulation and excretion of the radionuclides in the human body, such as:

- daughter products of ²²²Rn decay in the respiratory tract, ²⁴¹Am, other transuranic elements;

- isotopes of iodine in the thyroid gland;

- radiopharmaceuticals administered to patients for diagnostic and medicinal purposes.

- obtaining estimates of spatial-temporal distribution of individual internal exposure dose of a human.

The result of the work of recent years has been the creation of hygienic safe standard sample of an anthropomorphic radiodosimetric phantom of the human body ARDF-10 «ROMAN», consisting of 4 anthropometric models of body parts, which are independent assembly units (head phantom, neck phantom, torso phantom, knee phantom). Phantom models are made from simulators of bone, soft (muscle) and lungs biological tissue. The Phantom contains 28 separate elements. To the first Phantom model simulators of organs and body parts with incorporated radionuclides ²⁴¹Am, ²¹⁰Pb, ²³⁹Pu and U-natural are included. Also the background phantom without radionuclides is produced. Calibration of WBC with planar detectors based on HPGe was performed, sample of persons exposed to the incorporated activity was studied.