| More

Applications of a Novel Whole Body Counter in Radiation Protection and Human Body Composition Studies

Views: 132 Downloads: 87
J. Kalef-Ezra, S. Valakis, S. Pallada
J. Kalef-Ezra, S. Valakis, S. Pallada


A prototype shadow-shield whole body counter was designed, constructed and tested as a radiation protection, medical and research tool, such as in in vivo human body composition and in occupational exposure studies. In the present study potential fields of application of a prototype whole body counter were investigated carrying out measurements in groups of adult volunteers. Among others, the naturally occurring 40K and 214Bi whole body radioactivity was assessed. The activity of the former was correlated with the amount of the total body potassium, a quantity related to both cell mass and lean mass in the human body. Increased 214Bi levels found in two subjects was attributed to radium intake by ingestion. Patients were found contaminated with long lived radionuclides after administration of radiopharmaceutical of short half-life, administered for either diagnosis or treatment. Among the radiation workers monitored for internal occupational exposure, two were found contaminated with small amounts of 99mTc.


Whole body counter; radiation protection; 40K; internal contamination; occupational exposure

Full Text:



Kalef-Ezra JA., Valakis ST., T. Soupsanas T.: A high sensitivity multidetector whole body-counter, Radiat. Prot. Dosim. 144: 415-418 (2011)

Kalef-Ezra J., Hatzikonstantinou I., Leontiou I., and Glaros D.: Whole body 137Cs and 134Cs in the Greek population following the 1986 Chernobyl

accident, Radiat. Prot. Dosim. 42: 51-54 (1992)

Valakis ST., Pallada S., Potiriadis K., Kolovou M., Stamatelatos I. Kalef-Ezra J.: Effect of Radon Concentration in Air on the Quality of Radioactivity Measurements in the Human Body, Current proceedings

Valakis ST.: Development and application of radionuclide measurement methods using a whole body counte, Ph.D. thesis, University of Ioannina, Ioannina, 2012

De Lorenzo A. Andreoli A, Serrani P., D’Orazio N, Cervelli V, Volpe S. Body cell mass meausured by total body potassium in normal-weight and obese men and women, J. Am. Coll. Nutr. 22: 546-549 (2003)

Mackie A., Hannan WJ, Tothill P. An introduction to body composition models used in nutritional studies, Phys. Physiol. Meas. 10: 297-310 (1989)

Momcilovic B., Lykken G.: Seasonality of 214Bi activity in the human body and of 222Rn concentration in home ambient air, Health Phys. 92: 484-487 (2007)

Hermanne A, Tarkanyi F., Tacacs S., Rebels RA, Ignatyuk A., et al. Limitation of the long-lived 121Te contaminant in production of 123I through the 124Xe(p,x) route, Appl. Radiat. Isot. 69: 358-368 (2011)

Ma D., Ketring AR., Ehrhardt WJIA.: Production of radiolanthanides and radiotherapy research at MURR, J. Radioanal. Nucl. Chem. 206:119-126(1996)

DOI: http://dx.doi.org/10.12681/hnps.2488


  • There are currently no refbacks.

Copyright (c) 2019 J. Kalef-Ezra, S. Valakis, S. Pallada

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.