EPR dosimetry of whole deciduous tooth using a constant rotation goniometer and background subtraction with a dentine standard

Technical Report · Mon Jan 01 04:00:00 EST 1996

DOI:https://doi.org/10.2172/483334· OSTI ID:483334

Haskell, E H; Hayes, R B; Kenner, G H ^[1]

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1. Utah Univ., Salt Lake City, UT (United States). Center for Applied Dosimetry

We report here a rapid method of electron paramagnetic resonance (EPR) dosimetry of dental enamel which will allow screening of whole deciduous teeth of children following a nuclear accident. The technique requires virtually no sample preparation and is capable of measuring doses of less than 100 mGy. Teeth may be scanned for threshold dose levels without the need for added calibration doses and those of particular interest may be more accurately examined using the additive dose method. The success of the technique lies in the elimination of anisotropic effects by rotation of spectra from the empty cavity and a standard background tooth. Normalization using in- cavity Mn++ standards is also employed.

• Research Organization: Lawrence Livermore National Lab., CA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 483334
• Report Number(s): UCRL-CR--125904; ON: DE97051662
• Country of Publication: United States
• Language: English

Related Subjects

56 BIOLOGY AND MEDICINE
APPLIED STUDIES
CHERNOBYLSK-3 REACTOR
CHILDREN
ELECTRON SPIN RESONANCE
GAMMA DOSIMETRY
REACTOR ACCIDENTS
SENSITIVITY
TEETH