F. Gerigk, J-M. Giguet, G. T. Papadaki, S. Ramberger, R. Wegner, P. Ugena-Tirado

BINP shipping (F. Gerigk)

  • shipping has not yet left CERN for administrative reasons.

Jacks (F. Gerigk, S. Ramberger)

  • received cost estimate through ESS-Bilbao from three Spanish companies, cheapest is slightly more expensive then original estimate but still acceptable. We should proceed to sign a contract as quickly as possible.

Windows (F. Gerigk)

  • delivery delay for 304 L towards end of 2012

Movable tuners (F. Gerigk)

  • question on heat treatment for vacuum flanges was raised by CECOM and is now under discussion at MME -> guiding systems can be shipped

Waveguide ouplers (F. Gerigk)

  • answer from India: steel sheets are thicker than specified 7 instead of 6 mm, which seems to create problems in the production.

DTL (S. Ramberger)

  • The DTL cavity T1S1 has been copper plated with some mixed results again. A new attempt is being undertaken with new electrodes on the the tuner ports this week.
  • One of the cooling channels in T1S2 was almost opened when machining one of the central tuner ports. Discussions on a proper repair are ongoing.
  • An algorithm for tuning the DTL is being developed with tuning rings representing plunger tuners. This procedure is complementary to the procedure for stabilization with post-couplers.

PIMS (F. Gerigk, R. Wegner)

  • Ring G_13-14 has arrived CERN for analysis of the EBwelds made in Julich. X-ray analyses are currently made.
  • NCBJ: disc G_2-3 has been machined to an overlength of +0.5 mm on the 2nd side. The required tolerances have nearly been met, the disc is being machined to final dimensions.
  • NCBJ: discs M_2-3, M_4-5, M_6-7, end discs M_1, M_14 are rough machined as well as rings M_1-2, M_13-14, M_3-4
  • NCBJ: search for subcontractors is continuing, especially for those owning big lathes. 2 offers but only for rough and semi-final machining. Tolerances for final machining cannot be guaranteed.
  • NCBJ: trying to purchase a big lathe, contacted Polish, Italian, Spanish and Taiwanese producers. 1 Polish and 1 Italian producer preparing an offer. 1 offer for a combined milling-turning block but long delivery delay.
  • NCBJ: Close contact to CPL, 3 machines are working.
  • drawings for support s have been modified (replaced aluminium by steel, so that there are no aluminium-steel welds), drawings sent to Poland

-- RolfWegner - 29-Mar-2012

Edit | Attach | Watch | Print version | History: r1 | Backlinks | Raw View | WYSIWYG | More topic actions
Topic revision: r1 - 2012-03-29 - RolfWegner
    • Cern Search Icon Cern Search
    • TWiki Search Icon TWiki Search
    • Google Search Icon Google Search

    SPL All webs login

This site is powered by the TWiki collaboration platform Powered by PerlCopyright