G. Vanhaelewyn et al., A critical discussion of the 2nd intercomparison on electron paramagnetic resonance dosimetry with tooth enamel, RADIAT MEAS, 33(4), 2001, pp. 417-426
Recently, we have participated in 'The 2nd International Intercomparison on
EPR Tooth Dosimetry' wherein 18 laboratories had to evaluate low-radiation
doses (100-1000 mGy) in intact teeth (Wieser et al., Radiat. Meas., 32 (20
00a) 549). The results of this international intercomparison seem to indica
te a promising picture of EPR tooth dosimetry. In this paper, the two Belgi
an EPR participants present a more detailed and critical study of their con
tribution to this intercomparison. The methods used were maximum likelihood
common factor analysis (MLCFA) and spectrum subtraction. Special attention
is paid to potential problems with sample preparation, intrinsic dose eval
uation, linearity of the dose response, and determination of dose uncertain
ties. (C) 2001 Elsevier Science Ltd. All rights reserved.