Coil Constant for 48BC1.6 quad coil using magnet MG_QDP_5200#0 New Calibrated Coil Constant = 270.45884, File coilpar.ru (Old) Coil Constant = 272.19690 New Constant/Old Constant = 0.9936, Old Coil Radius = 0.0139700, New Radius = 0.0139499, Number of coils = 2 (Only change radius if Number of coils = 1!) Wire Strength = 0.012324 T, Coil Strength = 0.012404 T, Magnet Type is Quadrupole at Imag = 175.066 for coil. Number of Coil Turns = 19 Coil Constant Calculated from radius, turns and magnet order = 269.6830 (Should be within 5% of Calibrated Coil Constant)