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Collaboration

Collaboration. Target&horns@IBR 040721. Active discussion with E.Zimmerman and L. Bartoszek(MiniBooNE horn constructor) on the horns and beam MC is on going. There was a discussion on possible contribution by RAL on target and baffle. There was a meeting with BNL around target.

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Collaboration

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  1. Collaboration Target&horns@IBR 040721 • Active discussion with E.Zimmerman and L. Bartoszek(MiniBooNE horn constructor) on the horns and beam MC is on going. • There was a discussion on possible contribution by RAL on target and baffle. • There was a meeting with BNL around target. • In these days, in addition to KEK, people from Kyoto (Nakadaira, Sato) and LSU(Hatakeyama) are working on target&horns. status • Conceptual design of the target cooling pipes have been done. • Start discussion with company about R&D and actual production. • Cooling test for the 1st horn inner conductor are being done. • Inner conductor shape of the 3rd horn is almost finalized.

  2. Target cooling pipe design (T.Nakadaira et al.) Inner pipe He He Outer pipe Helium directly cool graphite target. Outer pipe by Ti Inner pipe by Ti/graphite

  3. 1st Horn Cooling Test (H.Sato et al.) Nozzles Outer conductor nozzles arrangement will be determined based on this measurement. Heater as inner conductor Water

  4. Horn3 inner conductor shape Optimized model Original modified Almost no effect! Realistic shape to get sufficient safety factor Uniform 3mm thickness Rmin=73m

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