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.
AllScan – the New High-Performance Cross-Belt Elemental Analyser
The AllScan is a high-performance analyser developed with strong functionality, calibration simplicity and low cost of ownership in mind.
The Analyser features cutting-edge technology with real customer benefits. Unique to the AllScan, these technological advantages deliver an analyser with superior analytical performance that is significantly more practical to set up and calibrate and with the lowest cost of ownership available on the market.
AllScan is used in a wide range of minerals applications including:
Typical elements measured include:
Customer defined ratio’s can also be reported, for example, Al/Si, Ca/Mg, Ca/Si and Ni/Fe.