부산대학교 도서관

The CEBAF beam transport system requires approximately 300 dipoles, 700 quadrupoles, 1100 steering dipoles, and 50 special magnets. All operate at fields below 4 kG and, thus, are of conventional iron-copper construction. All are being built by industry. The CW nature of CEBAF permits the magnets to be of solid construction. However, all quadrupoles with pole fields of more than 200 G are laminated in order to achieve the required 0.1% field error requirement at half-aperture. To date, all magnets have performance consistent with modelling and prototyping. Design parameters, field quality data, and comparisons to modelling and prototypes will be presented. 1 ref.