Neutron self-shielding correction in application of k(0)-NAA standardization method to determine Mn content in manganese ores
| Autor: | Mustafa Güray Budak, Haluk Yücel, Gizem Akkaya |
|---|---|
| Přispěvatelé: | Bursa Uludağ Üniversitesi/Fen-Edebiyat Fakültesi/Fizik Bölümü., Akkaya, Gizem, AAH-8784-2021 |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Silicon drift detector
Nuclear science & technology Analytical chemistry Manganese Energy dispersive spectroscopy 01 natural sciences 030218 nuclear medicine & medical imaging 0302 clinical medicine Germanium compounds Shielding Physics nuclear Instrumentation Phosphorus compounds Accuracy Manganese ore Germanium Physics Physics atomic molecular & chemical HPGe detectors Correction factors Neutron self-shielding effect Neutron sources Samples Neutron Activation Analysis Neutron Radiation Research Reactors Content (measure theory) Am-Be isotopic neutron source Instruments & instrumentation Nuclear and High Energy Physics Materials science Isotopic neutron sources Sample geometry chemistry.chemical_element Universal curve 010403 inorganic & nuclear chemistry Ores 03 medical and health sciences K(0)-NAA standardization method Sigmoid function Neutron Irradiation Neutrons NAA Elemental compositions Activation analysis Self shielding Standardization 0104 chemical sciences chemistry Neutron source Self shielding effect |
| Popis: | In this study, it is aimed to investigate neutron self-shielding effect in application of k(0)-NAA standardization method to determine Mn contents in manganese ores. Because the neutron self-shielding correction factors are significant factors in application of k(0)-NAA method for large samples. To estimate these, several Mn-ore samples and Au monitor were irradiated separately in a 37 GBq Am-241-Be neutron source irradiation unit and then they were measured by using a 78.5% relative efficient HPGe detector. In this study, the sigmoid function approaches for calculation of G(th) and G(e) factors were applied for the right cylinder sample geometry at known elemental compositions in samples, determined by EDXRF technique with a 25 mm(2) Silicon Drift Detector (SDD). The present results indicate that k(0)-NAA method is applicable successfully to determine Mn contents in Mn-ore samples providing that G(th) and G(e) factors are estimated accurately even if a low-flux isotopic neutron source is used. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|