The Design, Fabrication and Operation of a Mobile Naturally Occurring Radioactive Material (NORM) Decontamination Facility

2009 ◽  
Author(s):  
Michael Cowie ◽  
Khalid Ahmed Mously
Keyword(s):  
Radioactive Material ◽  
Naturally Occurring ◽  
Naturally Occurring Radioactive Material

Naturally occurring radioactive material and risk assessment of tailings of polymetallic and Ra/U mines from legacy sites

Chemosphere ◽  
2019 ◽  
Vol 223 ◽  
pp. 171-179 ◽  
Author(s):  
Isabel Paiva ◽  
Rosa Marques ◽  
Marta Santos ◽  
Mário Reis ◽  
Maria Isabel Prudêncio ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Radioactive Material ◽  
Naturally Occurring ◽  
Naturally Occurring Radioactive Material

scholarly journals Natural Radioactivity of Laterite and Volcanic Rock Sample for Radioactive Mineral Exploration in Mamuju, Indonesia

Geosciences ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 376
Author(s):  
Ilsa Rosianna ◽  
Eka Djatnika Nugraha ◽  
Heri Syaeful ◽  
Sugili Putra ◽  
Masahiro Hosoda ◽  
...  
Keyword(s):  
Mineral Exploration ◽  
Volcanic Rocks ◽  
Mining Area ◽  
Major Elements ◽  
Radioactive Material ◽  
High Exposure ◽  
Naturally Occurring ◽  
Naturally Occurring Radioactive Material ◽  
Exploration Area ◽  
Radioactivity Measurements

Mamuju is a region of Indonesia with relatively high exposure to natural radiation. Since 2012, Mamuju has been a uranium and thorium exploration area. Several mapping studies of the region have been carried out to depict NORM (naturally occurring radioactive material) areas and areas with uranium anomalies. This paper is the first study to use radioactivity measurements of laterite and volcanic rocks to determine the characteristics of radionuclides and other mineral measurements, which are essential for categorising Mamuju rocks and exploring the region as a potential mining area. The radioactivity of the samples was measured using a high-purity germanium (HPGe) detector. Furthermore, we used X-ray fluorescence (XRF) to determine the rock mineral composition. Mamuju is anomalous due to its high content of 238U and 232Th concentrations of 539–128,699 Bq·kg−1 (average: 22,882 Bq·kg−1) and 471–288,639 Bq·kg−1 (average: 33,549 Bq·kg−1), respectively. The major elements are dominant, including Fe2O3, SiO2, Al2O3, and Na2O, with several other major elements such as MnO, TiO2, and CaO.

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