Octopole correction of geometric aberrations for high-current heavy-ion fusion beams

Conference · Fri Mar 17 00:00:00 EST 1989

OSTI ID:6355883

Ho, D D.M.; Haber, I; Crandall, K R; Brandon, S T

The success of heavy-ion fusion depends critically on the ability to focus heavy-ion beams to millimeter-size spots. Third-order geometric aberrations caused by fringe fields of the final focusing quadrupoles can significantly distort the focal spot size calculated by first-order theory. We present a method to calculate the locations and strengths of the octopoles that are needed to correct these aberrations. Calculation indicates that the strengths of the octopoles are substantially less than that of the final focusing quadrupoles. 9 refs., 1 fig.

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6355883
• Report Number(s): UCRL-99631; CONF-890335-54; ON: DE89009906; TRN: 89-011071
• Resource Relation: Conference: 13. particle accelerator conference, Chicago, IL, USA, 20 Mar 1989; Other Information: Paper copy only, copy does not permit microfiche production
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
HEAVY ION FUSION REACTIONS
FOCUSING
BEAM FOCUSING MAGNETS
GEOMETRICAL ABERRATIONS
INERTIAL CONFINEMENT
CONFINEMENT
ELECTRICAL EQUIPMENT
ELECTROMAGNETS
EQUIPMENT
MAGNETS
NUCLEAR REACTIONS
PLASMA CONFINEMENT
700208* - Fusion Power Plant Technology- Inertial Confinement Technology