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BLIP operations 03-29-11

The BLIP operations, currently running at 117.5 MeV, have seen the weekly average beam reduced to 79.2 µA intentionally. Operational hours are down to 158.8 due to isotope production issues, specifically for Sr-82 and Ge-68. The Ga target has been performing for approximately 11 days at lower current levels, affecting Sr-82 yield. A plan is in place to optimize operations by removing the Ga target during weekdays and running maximum current on weekends. Additionally, a leak in the hot cell acid fume scrubber system led to local contamination, but personnel are safe, and decontamination has been completed.

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BLIP operations 03-29-11

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  1. BLIP operations 03-29-11 Status – running at 117.5MeV BLIP weekly average beam reduced to 79.2µA purposely. Weekly operations somewhat decreased to 158.8 hours. Isotope production of Sr-82, Ge-68 and irradiation LBNE targets downstream of the isotope targets continues at reduced current. Operations issues Ga target has survived ~11d at the significantly reduced current level. However, this also affects yield of Sr-82, which is in high demand. Therefore we will remove the Ga target Monday through Friday and operate at maximum current, then reduce the beam current and install the Ga target on the weekends. The hot cell acid fume scrubber system leaked at a joint in vapor off gas pipe, causing some local contamination on the equipment and the floor. No personnel were contaminated. Decontamination was completed yesterday. A temporary repair with silicone will be attempted while we await new fittings to be ordered and installed.

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