QE-N4 Integrated Strength Ratios Run 1: 08Jul2005 Stdz 3x(120,0)A Run 10: 10Mar2006 Stdz 3x(120,0)A First run on other bench Run 12: 10Mar2006 Stdz 9x(120,0)A Run 10: 14Mar2006 Stdz 3x(120,0)A Run 13: 14Mar2006 Stdz 3x(120,0)A (repeat) Run 14: 17Mar2006 Stdz 3x(120,0)A After coil alignment ------------------------------------------ Run Base 1 A 10A 100A ------------------------------------------ 1 1 1. 1. 1. 10 1 1.0142 0.99878 0.99686 1 10 0.98602 1.0012 1.0031 12 1 1.0194 0.99947 0.99695 1 12 0.98099 1.0005 1.0031 10 12 0.9949 0.99932 0.99991 12 10 1.0051 1.0007 1.0001 13 1 1.0199 0.99939 0.99692 1 13 0.98051 1.0006 1.0031 14 1 1.0296 1.0026 0.99938 1 14 0.97127 0.9974 1.0006 13 12 1.0005 0.99993 0.99997 12 13 0.99951 1.0001 1. 13 10 1.0056 1.0006 1.0001 14 13 1.0095 1.0032 1.0025 14 10 1.0152 1.0038 1.0025 For QE-N3 we had, e.g.: 39 1 1.0633 1.0074 1.0009 ------------------------------------------- Deviation of strength ratio from 1.0: 10/1 +1.42% -0.12% -0.31% 12/1 +1.94% -0.05% -0.31% 13/1 +1.99% -0.06% -0.31% 14/1 +2.96% +0.26% -0.06% <-- new (For QE-N3 39/1 6.33% 0.38% 0.09%) So int. strength at 1 A seems to have increased over previous measurement (Run 1) by ~2%, decreased by ~.1% at 10A, 0.3% at 100A. 12/10 +0.51% 0.07% 0.01% 13/10 +0.56% 0.06% 0.01% 14/10 +1.52% 0.38% 0.25% So there seem to be ~1/2% discrepancies at 1A but better than 0.1% at 10, 0.01% at 100A. Runs 13 and 12 agree to .05% or better. ---------------------------------------------------- The numbers are ratios of int.strength for run/base, e.g. the output of >> comparestr('strplt.ru1','strplt.r10',3); ff1 =S:\MagData\E163\quad\QE-N4\strplt.ru1 ff2 =S:\MagData\E163\quad\QE-N4\strplt.r10 SL1 = 0.03121 0.22674 2.2006 SL2 = 0.031652 0.22646 2.1937 Ratio_SL2_SL1 = 1.0142 0.99878 0.99686 >> is listed under 10 1 ---------------------------------------------------------- The fits (for up-going currents, 0-120A, only) and their errors: (Fit coefficients from highest to lowest order) Always NDF=13 difbar = rms QE-N4: Run 1 difbar = 0.00026485 p_up = -1.7489e-008 4.0251e-006 0.021683 0.0095229 dp_up = 2.0057e-009 3.5743e-007 1.6772e-005 0.0001647 Run 10 difbar = 0.0002526 p_up = -2.0313e-008 4.4018e-006 0.021599 0.010049 dp_up = 1.9028e-009 3.3979e-007 1.5977e-005 0.00015725 Run 12 difbar = 0.00024468 p_up = -2.0628e-008 4.4484e-006 0.021598 0.010212 dp_up = 1.843e-009 3.2911e-007 1.5475e-005 0.00015231 Run 13 difbar = 0.00023799 p_up = -2.1041e-008 4.5234e-006 0.021593 0.010232 dp_up = 1.7926e-009 3.2012e-007 1.5052e-005 0.00014815 Run 14 difbar = 0.00022863 p_up = -2.1624e-008 4.6369e-006 0.02164 0.010488 dp_up = 1.722e-009 3.0753e-007 1.4461e-005 0.00014234 --------------------------------------------------------------- QE-N3: QE-N3 Run 1 difbar = 0.0001838 p_up = -2.0741e-008 4.3898e-006 0.021663 0.0098654 dp_up = 1.3916e-009 2.4804e-007 1.164e-005 0.00011432 QE-N3 Run 39 difbar = 0.00019828 p_up = -2.2042e-008 4.9347e-006 0.021621 0.011903 dp_up = 1.4934e-009 2.667e-007 1.2541e-005 0.00012344 -----------------------------------------------------------