Slq-pub-1215 (a) March 1973 Operating Results from Spear*

- ph ] 2 0 Ju n 20 01 SLAC – PUB – 8232 August 1999 Dynamic Aperture Studies for SPEAR 3 1

The SSRL is investigating an accelerator upgrade project to replace the present 130 nm·rad FODO lattice with an 18 nm·rad double bend achromat lattice: SPEAR 3. In this paper, we review the methods used to maximize the SPEAR 3 dynamic aperture including optimization of linear optics, betatron tune, chromaticity and coupling correction, and effects of machine errors and insertion devices. Presen...

SLAC - PUB - 1434 . I June 1974 BEAM ENLARGEMENT BY MISMATCHING THE ENERGY - DISPERSION FUNCTION ?

The natural beutm size at the interaction point of a storage ring can be increased by operating the machine in a configuration in which the ener,T-dispersion function (7 function) is nonrepetitive in the periodic cells of the machine lattice. This mode of operation has been studied in SPEAR and is being considered in the PEP design. The usual method of beam enlargement in SPEAR has,been to oper...

Operation of the Spear Rf System

The SPEAR RF system has previously been described in these Transactions. I, 2 Therefore, only a brief description of the system is given here including a few additions and modifications, and most of the remainder of the paper is devoted to a discussion of the operation of the RF system with stored beams. A concluding section describes the improved RF system which is under design and constructio...

- ph ] 2 0 Ju n 20 01 SLAC – PUB – 8233 August 1999 Effect of Insertion Devices in SPEAR 3 1

The SPEAR 3 upgrade lattice will provide much reduced beam emittance to increase the brightness of synchrotron radiation beams from wigglers and undulators. Seven existing insertion devices will be used in the lattice. In this paper we review the wiggler parameters, outline the wiggler compensation scheme, and evaluate wiggler effect on the optics and dynamic aperture. Abstract The SPEAR 3 upgr...

Automatic Control Program for Spear