Browsing by Author "Kunicki-Goldfinger, Jerzy J."
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- ItemDetermination of potassium content in the B, C and D Corning reference glasses using gamma-ray spectrometry(Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft, 2002) Kierzek, Joachim; Kunicki-Goldfinger, Jerzy J.[no abstract available]
- ItemMeasurements of natural radioactivity in historical glasses(Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft, 2000) Kierzek, Joachim; Kunicki-Goldfinger, Jerzy J.; Kasprzak, Aleksandra J.Natural radioactive components of historical glasses and two methods of the respective measurement of the radioactivity are discussed. The evaluation of radioactivity of glass objects using a Geiger-Müller counter and high-resolution gamma ray spectrometry is presented. Α survey of the Warsaw National Museum glass collection with a Geiger-Müller counter allowed distinguishing the vessels made of potassium and sodium glass by their level of natural radioactivity. Gamma spectrometry, on the other hand, enables estimating a specific radionuclide content. Special attention is given to uranium glasses. One 19th Century Bohemian vessel, coloured with a uranium compound, was carefully examined using gamma spectrometry. K2O and U content were estimated to be 16.2 and 0.33 %, respectively.
- ItemNondestructive analysis of potassium in ancient glass on the base of its natural gamma activity(Offenbach : Verlag der Deutschen Glastechnischen Gesellschaft, 1998) Kunicki-Goldfinger, Jerzy J.; Kierzek, JoachimThe concentration of K₂O in historical glass objects was measured by gamma ray spectrometry. The method involved using moulds of the objects filled with material of known K₂O content. The results obtained were found to be close to results previously obtained by traditional methods and well within accepted tolerances in such cases. Gamma ray spectrometry produces results based on the whole object, not just on a sample of it which in the case of historical glass may not be representative. The method is completely nondestructive as no sample is taken, which allows it to be used for museum glass when destrucdon may not be permitted.