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    User name apowell

    Log entry time 07:51:06 on July20,2001

    Entry number 66841

    keyword=Magnet N2 levels

    N2 levels on the left spectrometer are consistently low for D1 and Q2. D1 is consistently <10% and Q2 is consistently<15%. No alarms were caused, but these values are lower than the 20% suggested on the shift checklist. Apparently they have been low for a while, but after a large drop on 7/18 the N2 levels seem to be slowly declining.

    7/15 both at 19%
    7/18 D1 18%, Q2 17% at 8:06,
    but, at 17:00, D1 9%, Q2 14%

    At the beginning of this shift, D1 was 10% Q2 was 12%
    Now, D1 is at 8% and Q2 is at 10%. As I'm writing, I see Q2 going up to 34%, which I have not seen on this shift or any recent shift checklists, but D1 remains at 8%.

    Perhaps this should be looked into?