10 likes | 168 Views
By accident , I've learnt the following about the skew quad.: Animesh Jain (Magnet Division) told me: The convention for the skew quad. (in RHIC) is that a +ve current results in North pole at the top (and bottom).
E N D
By accident, I've learnt the following about the skew quad.: Animesh Jain (Magnet Division) told me: The convention for the skew quad. (in RHIC) is that a +ve current results in North pole at the top (and bottom). We check (from the actual ramp) that the current during our 2009 run was -ve (and -ve strength) therefore we have South pole at the top (bottom). This is what MAD(X) calls a negative skew quad. Though Steve wasn’t aware that what we've been using has been a negative skew quad., it happens to be the right sign that he's used in the last transport of June 10, 2011. ( To Phil : it's a bit strange but it's what it's a -ve skew quad. ) So, I think we don't need to deal with another transport.