The U5. 0 Undulator for the ALS

Conference · Wed May 01 00:00:00 EDT 1991

OSTI ID:5740296

Hoyer, E; Chin, J; Halbach, K; Hassenzahl, W V; Humphries, D; Kincaid, B; Lancaster, H; Plate, D

The U5.0 Undulator, an 89 period, 5 cm period length, 4.6 m long insertion device has been designed and is in fabrication. This undulator will be the first high brightness source, in the 50 to 1500 eV range, for the Advanced Light Source (ALS) and is scheduled for completion in 1992. A modular hybrid configuration utilizing Nd-Fe-B permanent magnet material and vanadium permendur is used that achieves 0.837 Tesla effective peak field. Correction of the vertical field integral is with permanent magnet rotors at the ends. Gap adjustment is with an arrangement of roller screws, chains drives, a gear reduction unit and a stepper motor driven by a closed loop control system. The vacuum chamber design is a two-piece, machined and welded 5083-H321 aluminum construction of 5.1 m length. Magnetic design, subsystem design and fabrication progress are presented. 12 refs., 4 figs., 2 tabs.

• Research Organization: Lawrence Berkeley Lab., CA (USA)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (USA)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 5740296
• Report Number(s): LBL-29908; CONF-910505-294; ON: DE91014230
• Resource Relation: Conference: 1991 Institute of Electrical and Electronics Engineers (IEEE) particle accelerator conference (PAC), San Francisco, CA (USA), 6-9 May 1991
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
SYNCHROTRON RADIATION SOURCES
WIGGLER MAGNETS
DESIGN
CONTROL SYSTEMS
MAGNETIC FIELDS
SPECIFICATIONS
SUPPORTS
VACUUM SYSTEMS
ELECTRICAL EQUIPMENT
ELECTROMAGNETS
EQUIPMENT
MAGNETS
MECHANICAL STRUCTURES
RADIATION SOURCES
430303* - Particle Accelerators- Experimental Facilities & Equipment