El-Taher A
Physics Department, Faculty of Science, Al-Azher University, Assuit 71452, Egypt.
Appl Radiat Isot. 2012 Jan;70(1):350-4. doi: 10.1016/j.apradiso.2011.09.008. Epub 2011 Sep 29.
The instrumental neutron activation analysis technique (INAA) was used for qualitative and quantitative analysis of granite samples collected from four locations in the Aswan area in South Egypt. The samples were prepared together with their standards and simultaneously irradiated in a neutron flux of 7×10(11)n/cm(2)s in the TRIGA Mainz research reactor. Gamma-ray spectra from an hyper-pure germanium detector were analyzed. The present study provides the basic data of elemental concentrations of granite rocks. The following elements have been determined Na, Mg, K, Fe, Mn, Sc, Cr, Ti, Co, Zn, Ga, Rb, Zr, Nb, Sn, Ba, Cs, La, Ce, Nd, Sm, Eu, Yb, Lu, Hf, Ta, Th and U. The X-ray fluorescence (XRF) was used for comparison and to detect elements, which can be detected only by XRF such as F, S, Cl, Co, Cu, Mo, Ni, Pb, Se and V. The data presented here are our contribution to understanding the elemental composition of the granite rocks. Because there are no existing databases for the elemental analysis of granite, our results are a start to establishing a database for the Egyptian granite. It is hoped that the data presented here will be useful to those dealing with geochemistry, granite chemistry and related fields.
采用仪器中子活化分析技术（INAA）对从埃及南部阿斯旺地区四个地点采集的花岗岩样品进行定性和定量分析。将样品与其标准物质一起制备，并在美因茨TRIGA研究堆中7×10(11)n/cm(2)s的中子通量下同时辐照。对来自高纯锗探测器的伽马射线谱进行分析。本研究提供了花岗岩元素浓度的基础数据。已测定了以下元素：钠、镁、钾、铁、锰、钪、铬、钛、钴、锌、镓、铷、锆、铌、锡、钡、铯、镧、铈、钕、钐、铕、镱、镥、铪、钽、钍和铀。采用X射线荧光分析（XRF）进行比较并检测只能通过XRF检测的元素，如氟、硫、氯、钴、铜、钼、镍、铅、硒和钒。此处给出的数据是我们对了解花岗岩元素组成的贡献。由于不存在花岗岩元素分析的现有数据库，我们的结果是建立埃及花岗岩数据库的开端。希望此处给出的数据对从事地球化学、花岗岩化学及相关领域的人员有用。
