The re sults from the de vel op ment and the eval u a tion of ra dio ac tive waste mon i tors for small, me dium, and large vol umes of those wastes are pre sented. The ef fi ciency cal i bra tion of mon itors was made us ing the stan dard sources in point ge om e try as well as by us ing the com plex cal cu la tion of the ef fi ciency curves us ing the Monte Carlo sim u la tion method. The vol u met ric ac tiv ity sources were man u fac tured in the form of real 200, 400, and 700 litre bar rels with ma trix-fill ers in or der to cal i brate the mon i tors us ing the di rect ver i fi ca tion method. The pecu liar i ties of the soft ware that con trols the mon i tors are pre sented.
Abstract:The results of industrial application of an online X-ray fluorescence coating thickness analyzer for measuring the thickness of phosphate coatings on moving steel strips are considered in the article. The target range of coating thickness to be measured is from tens to hundreds of mg/m 2 in a measurement time of 10 s. The measurement accuracy observed during long-duration factory acceptance test was 10-15%. The coating thickness analyzer consists of two XRF gauges, mounted above and below the steel strip and capable of moving across the moving strip system for their suspension and relocation and electronic control unit. Fully automated software was developed to automatically and continuously (24/7) control both gauges, scanning both sides of the steel strip, and develop and test methods for measuring new coatings. It allows performing offline storage and retrieval of the measurement results, remotely controlling the analyzer components and measurement modes from a control room. The developed XRF coating thickness analyzer can also be used for real-time measurement of other types of coatings, both metallic and non-metallic.
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