SharePoint
Aide
IRSN, Institut de radioprotection et de sûreté nucléaire

Search our site :

ok

Contact us :

ok
En Fr

Enhancing Nuclear Safety


Research

Publications

Optimisation of recording conditions for the electron paramagnetic resonance signal used in dental enamel dosimetry

I. Ivannikov (1 et 2), F. Trompier (1), E. Gaillard-Lecanu (3), V. G. Skvortsov (2) and V. F. Stepanenko (2) Radiat. Prot. Dosim. 101(1-4), pp 531-538 (1) IRSN/SDOS/UDAC BP 17, 92262 Fontenay-aux-Roses Cedex, France (2) Medical Radiological Research Centre, Korolev str., 4, Obninsk, 249020, Russia (3) CEA/DSV BP6, 92265 Fontenay-aux-Roses Cedex, France

Document type > *Article de revue, *Congrès/colloque

Keywords > dose reconstruction, RPE

Research Unit > UDAC_(Accident and criticality dosimetry unit)

Authors > TROMPIER François

Publication Date >  

Summary

Optimisation of the parameters for recording the electron paramagnetic response (EPR) spectra of dental enamel for absorbed dose reconstruction was performed for an EMX (Bruker) spectrometer supplied with a high-sensitivity microwave cavity. Dose determination was performed using a previously developed automatic spectra processing procedure, which uses the non-linear fit of a model spectrum. The experimental error was estimated as the standard deviation of the results from the nominal doses for the set of spectra recorded for 10 samples prepared from teeth of different persons and irradiated in the dose range 0-500 mGy. The microwave power and magnetic field modulation amplitude corresponding to the minimum of dependencies of the error on these parameters were adopted as the optimal ones. For the sets of spectra recorded at optimal parameters for sample masses 100, 50 and 30 mg, the errors of dose determination were obtained as 18, 27 and 37 mGy respectively.
Send Print

More information


Close

Send to a friend

The information you provide in this page are single use only and will not be saved.
* Required fields

Recipient's email:*  

Sign with your name:* 

Type your email address:*   

Add a message :

Do you want to receive a copy of this email?

Send

Cancel

Close

WP_IMPRIMER_TITLE

WP_IMPRIMER_MESSAGE

Back

Ok