Minutes of DRAGON meeting, September 6th, 2004.
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Present: JDA, DH, DO, JC, CR, LB, AO, PM, GR, JP (recorder)


1.  Beam-time requests
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CV:  Requests made by email (outlined in attachment 1)
DH:  End-detector test for local TOF
     Si charge states measurement
     23Na(p,g) measurements (outlined in attachment 2)
LB:  O charge states measurement
AO:  Catania detector tests
JC:  23Na(p,g) 138 keV resonance (outlined in attachment 3)
     17O(p,g) tentatively (outlined in attachment 4)
JDA: 11C alternative production method attempts


2.  KO's report
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JDA: Reports of the 4 values for omega-gamma given in KO's end of
     term report is a matter of concern.
DH:  Suggests using beam-time to re-measure the charge state
     distribution of 21Ne(p,g).  Could also check the old tunes.
AO:  Reminds everyone that the collimators would also need changing
     to make a proper comparison with the old tunes.


3.  Hardware status
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PM: Offline tests with ED1 carried out previous Wednesday/Thursday.
    Burn marks found on nylon parts within ED1 were removed with
    sandpaper (likely to be due to resistors arcing).  New boards
    now have resistors on both sides and arcing should be less likely
    as it would have to be through the board rather than across the
    surface.  May apply same construction technique to diode boards.
JP: DAQ has been debugged such that data taking works for both
    heavy-ions and gammas.  Obtained VME memory modules and attempting
    to talk to them.  Plan is to get the readout through VME and then
    consolidate all changes in preparation for October running.
DH: swapping power supplies on last two sextupoles for those currently
    attached to last two quadrupoles (which were also incorrectly
    wired).
PM: Y-slits appear to be OK, or at least no problem found.  There is
    some play in the fixings of the X-slits which could feasible cause
    a short between the slits and the faraday cup behind.
JC: PGAC timing improved to 1.2 ns (using 3 planes of wires @ 50
    microns).  AO suggests talking to someone in the detector lab who
    has a fundamental understanding of such devices.  JC would
    appreciate a new source that's stronger than the one currently in
    use.  Cost of around $500.
DO: Top of the IC to have a 4 inch port added, incase of an explosion
    inside the chamber.  DH estimates 20-30 spud guns fired
    simultaneously could cause the same amount of damage.  New GHS for
    the IC is also still underway.  A preliminary drawing of the new
    system is shown in attachment 5.