The AllScan PGNAA analyser combines state-of-the-art nuclear technology with ground-breaking spectra modelling and powerful statistical analysis. Installed on a conveyor belt, the AllScan delivers accurate, minute-by-minute elemental analysis and reporting of the chemical composition of bulk materials and key process parameters.
At the heart of the AllScan is PGNAA – prompt gamma neutron activation analysis. Material on the conveyor is bombarded with neutrons emitted from radioactive isotope or a neutron accelerator (Ngen). RTI has incorporated a revolutionary new neutron generator design into the AllScan N-Gen® elemental analyser. The generator life span is more than 10 years. There is a constant output of neutrons, with no decay over time as with Cf-252 sources. The only maintenance requirement is that re-gassing is required every 3 years.
When neutrons collide with an element in the material, gamma rays are emitted with a specific energy unique to that element – in effect, creating chemical signature for that element. The greater the amount of an element in the material the greater the number of gamma rays emitted with the corresponding specific energy. By measuring the specific energy of the gamma rays that are emitted and the counts of gamma rays, an accurate analysis of the chemistry of the material is generated on a second-by-second basis.
Other on-line analysis technologies applied in coal applications, such as IR/NIR/-FTIR and XRF/EDXRF analyses the material/sample surface only, while the penetrating concept of PGNAA measures the entire product stream. RTI’s AllScan analyser has been developed with particular emphasis to address practical analytical challenges experienced with less advanced analysers. Best in class robustness of the applied calibration model as well as high tolerance towards material depth variations and effects from layering on the belt conveyor through the analyser are some of the most notable benefits of AllScan. Very low installation costs and moisture analysis capability always included with no added costs makes the Total Cost of Ownership (TCO) for a typical cement installation the lowest on the market.
The AllScan provides real time analysis of elemental composition that is used to improve monitoring, sorting and blending operations in:
AllScan is used for the applications of Raw Coal, Plant Feed, Clean Coal and Blended Coal.
The AllScan is the most affordable, accurate and easy-to-install cross belt analyser analyser of its kind in the world today.
AllScan ® has two key advantages over other analysers:
Combining state-of-the-art nuclear technology (PGNAA) with ground spectral modelling (sophisticated algorithm DURA-G ® incorporated to dramatically reduce the measurement error), the AllScan delivers accurate, minute by minute elemental analysis and reporting of Key Process Parameters such as: