Red gold analysis by using gamma absorption technique
| dc.contributor.author | Kurtoğlu, Arzu | |
| dc.contributor.author | Tuğrul, A. Beril | |
| dc.contributor.department | Bölüm Yok | tr_TR |
| dc.date.accessioned | 2018-08-02T06:37:31Z | |
| dc.date.available | 2018-08-02T06:37:31Z | |
| dc.date.issued | 2000-10 | |
| dc.description | I. Avrasya Nükleer Bilimler ve Uygulamaları Konferansı : 23-27 Ekim 2000. İzmir, Türkiye. | tr_TR |
| dc.description.abstract | Gold is a valuable metal and also preferable materials for antique artefacts and some advanced technology products. It can be offered for the analysis of the gold as namely; neutron activation analysis, X-ray florescence technique, Auger spectroscopy, atomic absorption and wet chemistry. Some limitations exist in practice for these techniques, especially in the points of financial and applicability concepts. An advanced a practical technique is “gamma absorption technique” for the gold alloys. This technique is based on discontinuities in the absorption coefficient for gamma rays at corresponding to the electronic binding energies of the absorber. If irradiation is occurred at gamma absorption energy for gold, absorption rates of the red gold changes via the gold amounts in the alloy. Red gold is a basic and generally preferable alloy that has copper and silver additional of the gold in it. The gold amount defines as carat of the gold. Experimental studies were observed for four different carats of red gold; these are 8, 14, 18 and 22 carats. K-edge energy level of the gold is on 80 keV energy. So, Ba-133 radioisotope is preferred as the gamma source because of it has gamma energy peak in that energy. Experiments observed in the same geometry for all samples. Nal(Tl) detector and multichannel analyser were used for measurements. As a result of the experiments, the calibration curves could be drawn for red gold. For examine this curve, unknown samples are measured in experimental set and it can be determined the carat of it with the acceptability. So the red gold analysis can be observed non-destructively, easily and quickly by using the gamma absorption technique. | tr_TR |
| dc.identifier.citation | Kurtoğlu, A., Tuğrul, A. B., (2000). Red gold analysis by using gamma absorption technique. I. Eurasia Conference on Nuclear Science and Its Application, Presentations, Vol 2, (s. 699-704). 23-27 October 2000. İzmir, Turkey. | tr_TR |
| dc.identifier.endpage | 704 | tr_TR |
| dc.identifier.startpage | 699 | tr_TR |
| dc.identifier.uri | http://kurumsalarsiv.tenmak.gov.tr/handle/20.500.12878/775 | |
| dc.language.iso | eng | tr_TR |
| dc.publisher | Turkish Atomic Energy Authority | tr_TR |
| dc.relation.journal | I. Eurasia Conference on Nuclear Science and Its Application : Presentations, 23-27 October 2000. İzmir, Turkey. | tr_TR |
| dc.rights | info:eu-repo/semantics/openAccess | tr_TR |
| dc.subject | Gamma absorption technique | tr_TR |
| dc.subject | Gama emilim tekniği | tr_TR |
| dc.subject | Red gold analysis | tr_TR |
| dc.subject | Kırmızı altın analizi | tr_TR |
| dc.title | Red gold analysis by using gamma absorption technique | tr_TR |
| dc.type | conferenceObject | tr_TR |