EPR spectroscopy of tooth enamel: the tooth radicals and the microcrystal alignment

Gualtieri, G. J.; Colacicchi, S.; Sgattoni, R.; Giannoni, Mario

doi:10.1163/156856701753536688

Cited by 1 publication

(1 citation statement)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…(Brady, et al, 1968) Since this seminal description, substantial progress has been made in EPR dosimetry of in vitro samples and precision as fine as ±2.5 cGy has been reported for low-dose measurements, with precision of ±10% for doses above 25 cGy. (Chumak, et al, 2005) EPR tooth dosimetry using samples of pure enamel that have been extracted from irradiated subjects are typically performed at an X-band frequency (∼9 GHz) with a standard TE 102 cavity resonator and may employ a goniometer to average out spatial anisotropy (El-Faramawy and Wieser, 2006, Gualtieri, et al, 2001b, Hayes, et al, 2000, Hayes, et al, 1998. The high RF frequency and resonator filling factor contribute to the sensitivity of such measurements.…”

Section: Introductionmentioning

confidence: 99%

Experimental procedures for sensitive and reproducible in situ EPR tooth dosimetry

Williams

Sucheta

Dong

et al. 2007

Radiation Measurements

View full text Add to dashboard Cite

In vivo electron paramagnetic resonance (EPR) tooth dosimetry provides a means for non-invasive retrospective assessment of personal radiation exposure. While there is a clear need for such capabilities following radiation accidents, the most pressing need for the development of this technology is the heightened likelihood of terrorist events or nuclear conflicts. This technique will enable such measurements to be made at the site of an incident, while the subject is present, to assist emergency personnel as they perform triage for the affected population. At Dartmouth Medical School this development is currently being tested with normal volunteers with irradiated teeth placed in their mouths and with patients who have undergone radiation therapy. Here we describe progress in practical procedures to provide accurate and reproducible in vivo dose estimates.

show abstract