--------------------------------------------------------- MQXA (KEK Low-Beta Quad) Reference Harmonics at COLLISION --------------------------------------------------------- Version 1.0 October 16, 1998 *************************************************************************** Quoted harmonic values are given in "units" of 10^-4 of the main quadrupole field at 17 mm reference radius. European convention: b2 is quadrupole! Magnetic length of the straight section: Q1/Q3: L = 6.3 [m] - L(lead end) - L(return end) Q2a/Q2b: L = 5.5 [m] - L(lead end) - L(return end) where L(lead end) = 0.323 [m], and L(return end) = 0.177 [m] Notation: bn/an: Mean of normal/skew harmonics d(bn)/d(an): Uncertainty of mean normal/skew harmonics sig(bn)/sig(an): Standard deviation of normal/skew harmonics Bn/An: Integrated harmonics (at lead ends) coil id 70 mm ref. radius R 17 mm BODY (unit) -------------------------------------------------------------------------- n bn d(bn) sig(bn) an d(an) sig(an) -------------------------------------------------------------------------- 3 .0 .51 1.0 .0 .51 1.0 4 .0 .29 .57 .0 .29 .57 5 .0 .19 .38 .0 .19 .38 6 1.25 .10 .19 .0 .10 .19 7 .0 .05 .06 .0 .05 .06 8 .0 .02 .03 .0 .02 .03 9 .0 .01 .01 .0 .01 .01 10 .89 .01 .01 .0 .01 .01 -------------------------------------------------------------------------- LEAD END (unit-m) -------------------------------------------------------------------------- n Bn d(Bn) sig(Bn) An d(An) sig(An) -------------------------------------------------------------------------- 2 13.4 6 2.28 .07 10 -.17 -.02 -------------------------------------------------------------------------- RETURN END (unit-m) -------------------------------------------------------------------------- n Bn d(Bn) sig(Bn) An d(An) sig(An) -------------------------------------------------------------------------- 6 10 --------------------------------------------------------------------------