Toward High Sensitivity ESR Dosimetry of Mammal Teeth: The Effect of Chemical Treatment | Zendy

Shin Toyoda | Zendy; H. Imata | Zendy; Alexander Romanyukha | Zendy; Masaharu Hoshi | Zendy

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Toward High Sensitivity ESR Dosimetry of Mammal Teeth: The Effect of Chemical Treatment

Author(s) -

Shin Toyoda,

H. Imata,

Alexander Romanyukha,

Masaharu Hoshi

Publication year - 2006

Publication title -

journal of radiation research

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.643

H-Index - 60

eISSN - 1349-9157

pISSN - 0449-3060

DOI - 10.1269/jrr.47.a71

Subject(s) - dentin , enamel paint , dosimetry , tooth enamel , radical , dentistry , chemistry , human tooth , radiochemistry , nuclear chemistry , nuclear medicine , organic chemistry , medicine

Investigations were conducted into chemical treatments suitable for concentrating enamel from cow teeth. Cow teeth could be used as alternative to human teeth for retrospective dosimetry when human teeth are not available. It is essential to remove dentin from tooth enamel for low dose radiation dosimetry in order to avoid interference to the ESR signal from organic radicals. Increasing the period of chemical treatment with KOH and NaOH reduced the signal intensity of the organic radicals. The sensitivity of the dosimetric signal from inorganic radicals increased slightly with length of treatment with NaOH, which is consistent with removal of dentin, and rose to a maximum of 20% after 5 h with KOH (40 degrees C).

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