SUBTLETIES IN ELECTRON-PARAMAGNETIC-RESONANCE SPECTROSCOPY - IMPLICATIONS FOR DATING AND DOSIMETRY

Electron paramagnetic resonance (EPR) spectroscopy, as usually practic ed, involves sweeping the magnetic field and not the frequency. In the first place this means that EPR spectra are not unique and will depen d, in many cases, on the microwave frequency used. This paper focuses on what is measured and how well we understand what it is that is bein g measured. The paper outlines the principles that should be followed in setting up EPR spectrometers for quantitative intensity measurement s, critical for dosimetry and dating, including adjustments to the mic rowave bridge, choice of microwave power, temperature stability and re producibility. (C) 1997 Elsevier Science Ltd.