Minutes of the 12 Sept., 2006 DRAG ON Meeting

Present:  Jd'A, DH, CD, PM, LB, DO, CV, MT, GR

  1.  Minutes of the previous meeting, accepted.

  2.  Hardware
      Ceramic tubes: They were pulled out yesterday.  The corona rings
    were found to be not the modified design and are being remachined.  Will
    not be closed up by EOB today.

  3.  Acceptance studies

    a) Report on alignment checks (DO)
    Referenced to the South pillar,  MD2 is 1.2 mm low at the yoke mark
    and 1.72 mm low at the pole.  MD1 is 0.6 mm low at the yoke mark
    and 0.029" (~0.75 mm) high at the pole.  MD1 is tilted (side 
    to side) by 0.005" per foot.  North wall mark is high by 0.4
    mm.  Probably only need to be concerned about pole heights (DH).
    Some concern that offsets are approaching 2 mm (DO).

    b) No light was observed from the ZnS screen (borrowed from
    TUDA) irradiated by Gd alpha-source and viewed by the CCD camera.
    Camera peak sensitivity is in green light (Q.E. ~60%) according
    to the manual. (CD)

    c) LB will sketch a system of solar cells to provide large area 
    detection of expanded trajectory envelopes in the separator.

  4.  Availability of accelerated beam:
    They are working on a fix of the water leak in the RFQ.
    5 weeks to find/fix/reassemble
    3 weeks to recondition
    1 week contingency
    ==> No beam before mid-November unless conditioning/contingency
    turn out shorter

  5.  40Ca(a,g) analysis
    CV & CO made a list and they are half-way through it (CV)
    Have to use appropriate cuts before they can really present 
    any results.  Remaining:  Charge state distributions, BGO
    efficiency included run-by-run.

  6.  22Na(p,g) tests
    Test on heat transfer through pieces of Cu show 3 or 4 degree
    rise for a 10 W load (as opposed to using a monolithic piece
    of Cu).

  7.  CSD paper
    DH responds/reacts to referee's comments.  He is having trouble
    with the electronic (re)submission.

  8.  12C(a,g) paper.  LB is accepting comments.

  9.  Yields
    Observed fluorides from target.  Mass 17: BaF ~ 10**6
    Little/no aluminum was observed.  CF4 test fails due to a hardware
    problem. (MT)

 10.  A.O.B.
    Lengthy discussion about possible 'flagship' reaction to highlight
    the DRAGON NSERC grant application.  DH will distribute before next
    meeting a draft to serve as a baseline for further discussion of 
    future plans.