What is BS 5915 - Equipment for grading and sorting radioactive ores about?
BS 5915 discusses specifications for equipment for minehead assay and sorting radioactive ores in containers. Radioactive ores are economically recoverable concentrations of uranium within the Earth's crust. BS 5915 is applicable to equipment for grading and sorting radioactive ores in containers at minehead and in open-cast workings, described in Clauses 3 and 4.
The object of BS 5915 is to lay down mandatory requirements and to give a list of characteristics that the manufacturer shall specify in the instruction manual supplied with each apparatus (see IEC Publication 278, Documentation to be Supplied with Electronic Measuring Apparatus).
Who is BS 5915 - Equipment for grading and sorting radioactive ores for?
BS 5915 on the equipment for grading and sorting radioactive ores is useful for:
- Radioactive ores mining fields
- Extraction fields
- Radioactive ores equipment manufacturers
- Quality control personnel
Why should you use BS 5915 - Equipment for grading and sorting radioactive ores?
Radioactive ores are generally classified based on host rocks, structural setting, and mineralogy of the deposit. Such equipment, used at the Minehead or in open-cast workings and quarries, ensures two functions those are an estimation of the grade of uranium ore, permitting the sampling of exploratory work and the survey of the production output. As the measured gamma radioactivity does not directly represent the content of uranium metal, the processing of the results is made using a statistical method, establishing the correlation between radioactivity and uranium content. This allows the account to be taken of the state of the radioactive equilibrium of the ore. And the other one is a selection of the quarried products, which enables avoidance of unnecessary freight and processing charges for ore with a uranium content that is too low to be economical to process, and also allows classification of ores into several ranges of uranium contents, so that each grade may be treated appropriately.
Equipment for rapid analysis and sorting includes one or more detectors (usually Geiger-Müller counter tubes or scintillation detectors) designed to detect the gamma radiation emitted by the truck or cylinder load. The detector housing may contain the high-voltage supply, temperature conditioning devices and the pre-amplifier. The housing may also include shields against ionizing radiation and radiation filters to eliminate the lower energy part of the spectrum, which is subject to perturbation matrix effects. the associated electronics which include power supply, signal shaping, discrimination and possibly selection devices (with single-channel or multi-channel analyzers, ratemeter, timebase). recording and storage devices (computer, printing machine, typewriter, etc.). and the last one is devices for signalling or for actuating electromechanics which switch ores according to their grade classes to various storage bins or areas. Using BS 5915 you can define equipment for grading and sorting radioactive ores in containers at the minehead and in open-cast workings.