Method and system for in-situ testing grade of big ore block by electron-air shielding radiation effect
A technology to annihilate radiation and large ores, which is applied in the fields of material analysis using wave/particle radiation, nuclear radiation exploration, material analysis using radiation, etc., can solve the problem of high cost, time-consuming and labor-intensive, impossible to meet the real-time requirements of the production process Control and other issues, to achieve the effect of convenient operation, cost reduction and efficiency improvement
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[0020] Schematic diagram of the structure of the on-line detection system for the effect of electrons on annihilation radiation for large ore grades, as shown in figure 1 shown. What described radioactive source adopts activity is 1.85GBq 226 Ra, the detector is a scintillation detector composed of φ100×100mm NaI crystal, photomultiplier tube, preamplifier and high voltage generator.
[0021] The radiation source 6 and the detector 7 are arranged in a frame with an upper opening and two grooves, a shielded radiation source 6 is placed in one groove, and a shielded detector 7 is placed in the other groove. The axes of the source 6 and the detector 7 are on the same horizontal line, the radiation source 6 is opposite to the receiving end of the detector 7, and the depleted uranium 4 is arranged in the middle, and an opening is arranged above the radiation source 6 and the detector 7, and the depleted uranium 4 is separated from the radiation source 6. There is an opening less ...
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