The «Au-Isomer» gamma-activation ore assay system is intended for high performance industrial use to provide highly accurate, rapid, repeatable, and non-destructive determination of the quantity of gold and associated elements in ore samples.
Electron linear accelerator has the following original technical specifications:
The is made on the basis of 8 MeV, 10 kW linear accelerator. Spectrometric system for registration of the induced gamma radiation based on multi-crystal HPGe detectors.
The automated control system for the «Au-Isomer» industrial ore assay system enables control over the functioning of the basic components and coordination of timing of their operation.
The information processing system provides information reading from gamma-radiation spectrometers, the calculation of the quantities of gold and associated elements in the sample in accordance with defined algorithms, information transfer for display to the user, and the saving of information for each identified sample by sample number in the database for subsequent retrieval and analysis.
The sample transportation system enables identification and registration of samples, weighs each sample, and moves identified samples from one control point to another (weighing point, sample activation point, measurement point, and the storage point for measured samples) in the successive frames of the ore assay system.
| Parameter | Value |
|---|---|
| Low definition limit (for gold), g/t | ~ 0.07 – 0.15 |
| Choices of elements available to the customer for assay | Au, Ag, As, Ba, Br, Cd, Er, Ge, Hf, Hg, In, Ir, Lu, Pb, Pt, Rh, Se, Sn, Th, U, Y, W |
| Sample weight, gram | 500 - 1000 |
| Excitation source | Linear electron accelerator |
| Assay system productivity for gold analysis (number of analyses per hour) | 120 |
| Electron energy range, MeV | 7 - 9 |
| Maximum ray power, kW | 10 |
| Maximum consumed electric supply power, kW | 80 |
| Maximum adjusting electric supply power, kVA | 130 |
| Outer water cooling contour should disperse the power of 60 kW and provide: | - the cooling water temperature not over 25ОC; - cooling water flow for 25ОC – 80 l/min. |
| Accelerator is supplied by 3-phase circuit 380/220 V, 50 Hz with grounded neutral and stability ± 5%. |
