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BLIP operations 03-15-11

BLIP operations 03-15-11. Status – off BLIP weekly average beam reduced to 97.0µA purposely. Operations decreased to 158.4 hours due to Linac maintenance.

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BLIP operations 03-15-11

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  1. BLIP operations 03-15-11 Status – off BLIP weekly average beam reduced to 97.0µA purposely. Operations decreased to 158.4 hours due to Linac maintenance. A broader Gaussian profile was achieved and another trial with a Ga target began 3/8 at slightly reduced intensity. No failure so far. Isotope production of Sr-82 and irradiation LBNE targets downstream of the isotope targets continues. Research irradiation for Cu-67was completed 3/8. Operations issues Target drive system failure today Preliminary diagnosis is that the sprocket on drive #2 is slipping on the motor shaft. Repair requires access to the contaminated motor housing on top of the hot cell. A RWP is being prepared. Investigation of cause of Ga targets leaks continues. We are investigating an alternate target design involving vapor deposition of either rhenium or alumina as a protective layer on the Nb cladding interior. Test pieces are being fabricated.

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