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BLIP Operations Update: Beam Time Reduction and Isotope Production Challenges

The BLIP operations report indicates a beam time reduction to 121.0 hours due to a 47-hour ion source failure. Weekly average beam current fell to 92.8µA due to ongoing ion source conditioning. Isotope production of Sr-82 has ceased, while Ge-68 production continues. The first irradiation of FRIB targets downstream was completed after achieving 20,000µAh. A loss of 2 days of beam time has negatively impacted Sr-82 yield, and current supply projections will not meet July demand. A backup plan involves LANL providing supplemental Sr-82 in a single FDA-qualified batch.

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BLIP Operations Update: Beam Time Reduction and Isotope Production Challenges

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  1. BLIP operations 06-21-11 Status – running at 117.5MeV Beam time on target dropped to 121.0 hours due to ion source failure of 47 hours. BLIP weekly average beam current dropped to 92.8µA due to ion source conditioning following repair. Isotope production of Sr-82 has ceased. Increased production of Ge-68 continued . First irradiation of FRIB targets downstream of the isotope targets completed when the requested 20,000µAh was reached. Operations issues Loss of 2 days of beam on target has reduced Sr-82 yield in the very last run. The projected amount will not meet demand in July and there is no time to make up the loss. LANL is now running and can make up the difference, but the users have refused to take material in separate batches. The backup plan is to for LANL to ship us supplemental Sr-82 to combine with our own into a single FDA qualified batch next week.This takes extra time and will cause difficulty in meeting the delivery schedule. Two more shorter FRIB irradiations are planned this week.

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