Academic thesis

Jana Wichmann: Analysis of the implication of gamma-rays on leather based book covers. back

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Abstract: Using gamma-rays for killing any kind of microorganisms in or on an item is a save method to combat contaminated materials in library resources. In recent years researches concerning the effect of gamma-rays on the chemical and physical properties have shown that a radiation dosage ≥ 10kGy causes a drastically reduction of the tensile strength and a reduction of the pH-value. Furthermore, the paper shows yellowing when it is exposed to high gamma-ray doses. These observations result in an accelerated aging of gamma-ray exposed paper.
Since there is marginal literature which discusses the influences of gamma-rays on other materials like leather or parchment. This study focuses on the implication of gamma-rays on leather based book covers. The shrinking temperature, the change of the pH-value and chromaticity are analyzed, compared and discussed, respectively.

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Keywords: leather, collagen, shrinking temperature, pH-value, chromaticity, gamma-rays, gamma-service, microorganism, sterlisation, desincetion, fumigation, radiation dosage
Details:
  • academic institution: HAWK Hochschule für angewandte Wissenschaft und Kunst Hildesheim/Holzminden/Göttingen
  • kind of theses:  Bachelorarbeit
  • main Tutor:  Prof. Dr. Karin Petersen
  • assistant Tutor:  Jörg Graf
  • date:  2009
  • Language:  German
  • pages:  319
  • pictures:  32
 
Contact:
 
Jana Wichmann
wispert@[Diesen Teil loeschen]web.de

 
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