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Radioactive “seeds” used for treating physical ailments are manufactured by placing a dose of radioactive material inside a small cylinder and welding the ends closed. The overall dimensions are approximately .020” in diameter by ¼” long.
The manufacturers of the seeds wanted a machine to measure and sort the assembled seeds to a precise and selectable level of radiation.
Our design included a stainless steel vibratory feed bowl into which quantities of seeds are placed. The bowl singluates the seeds which are escaped into the transporter. The transporter moves the seeds into the “sweet” spot of a dose calibrator that measures the level of radioactivity. The control system determines which of 8 small receptacles into which the seed should be deposited.
The small receptacles are part of a turntable whose position is controlled by a high speed servo motor. The control system positions the turntable to present the canister whose assigned radioactive value corresponds to the measured value of the seed exiting the dose calibrator.
Our design produced a production ready machine debugged, validated, guarded and ready for production.
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