![]() ![]() The ratio of epithermal to thermal neutrons is proportional to uranium, allowing the U 3O 8 ore grade to be accurately calculated. Therefore, the neutrons emitted by the PFN tool excite, at an atomic level, in-situ uranium atoms in the drill hole, creating fast (epithermal) neutrons and slow (thermal) neutrons. The PFN tool creates very fast neutrons (14MeV) and fires 108 neutrons per second. Real-time PFN analysis accurately eliminates potential errors by using neutron activation to directly detect and quantify uranium content in place down the drill hole. Without accurate uranium values, the potential for inaccurate estimates of mineralization on both the high and low side is ever present. Traditionally, accurate uranium values are therefore determined by chemical assay of drill core which is time consuming and expensive. Many uranium deposits have a degree of disequilibrium, whereby the radioactivity measured in drill holes using traditional gamma methods does not accurately correspond to ore grade, due to the continued decay of uranium daughter products including potassium, thorium, lead and bismuth relative to radium (Ra226), a significant gamma emitter. The Company owns and operates 2 logging trucks and 5 PFN tools. Any anomalous gamma readings are followed up with Prompt Fission Neutron (PFN) surveys which provide direct and accurate in-situ uranium values eliminating any concerns over disequilibrium. Each hole is logged with electrical and gamma methods upon completion. Īll drill holes are 5.625-inch diameter rotary-mud holes. To learn more about the environmental, social and low-cost advantages of uranium in-situ recovery, visit. Please visit to view Rosita project maps and view the Rosita drill program video at. The Rosita Extension PAA is located within the existing Radioactive Materials License, Underground Injection Control Permit and Aquifer Exemption areas at the Rosita Project.The Rosita Extension PAA is the first production area planned as a new source of uranium for the Rosita ISR Uranium Processing Plant.Commencement of hydrologic and water quality testing of the baseline and monitor wells (see enCore news release dated August 25, 2022).Commencement of installation of the production well patterns (injection and recovery wells) with 5 drill rigs are currently active at the Rosita Extension PAA drilling. ![]() In addition to an indication of grade of mineralization in the PAA, the baselines wells also serve to establish groundwater quality standards.Baseline Drill Hole BL-41 reported 22.0 feet of mineralization grading 0.234% U 3O 8 from a depth of 184 feet. ![]()
0 Comments
Leave a Reply. |