A conductor assembly and method of manufacture. The assembly includes a magnetic coil positioned about a curvilinear axis with one or more coil rows comprising conductive material having an arcuate shape. A generated field is characterized by a dipole component having a first magnitude, a quadrupole component having a second magnitude, a sextupole component having a third magnitude and a decupole component having a fourth magnitude. The third and fourth magnitudes are each 10.sup.-3 the first magnitude or less.
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH AND DEVELOPMENT
The United States Government may have certain rights in this invention pursuant to U.S. Government Contract Number DE-FG02-06ER84492 awarded by the United States Department of Energy.