Published February 1990
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ZAP study of collective effects in PEP: 9 x 9 collider optics
Description
In this note, single and multi-bunch collective instabilities are considered for PEP operating a 9 x 9 bunch configuration. The lattice is based on a vertically separated beam 'pretzel' design which allows for collisions at the TPC (IR2) only. Threshold current levels and linear instability growth rates are calculated with the storage ring design code 'ZAP'. Single bunch instabilities should not be a problem for total circulating currents of 100mA (18 bunches, 5.6mA/bunch). Coupled-bunch growth rate calculations are based on a line broadening technique for the higher-order cavity modes. In the longitudinal case, feedback will be required. For the transverse coupled bunch instabilities, growth rates are about 5 times less. 14 refs., 5 figs
Availability note (English)
MF available from INIS under the Report Number; NTIS, PC A02/MF A01 as DE90010684; OSTI; INIS; US Govt. Printing Office Dep.Files
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Additional details
Publishing Information
- Imprint Pagination
- 12 p.
- Report number
- SLAC-PEP-NOTE--382
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 21094595
- Subject category
- S43: PARTICLE ACCELERATORS;
- Descriptors DEI
- ALGORITHMS; BEAM OPTICS; F CODES; INSTABILITY; INSTABILITY GROWTH RATES; LINE BROADENING; PEP STORAGE RINGS; RF SYSTEMS
- Descriptors DEC
- COMPUTER CODES; STORAGE RINGS
Optional Information
- Contract/Grant/Project number
- Contract AC03-76SF00515