Luminosity with more bunches in PEP
The near term accelerator physics program for PEP includes experiments in a collider mode with up to 9 bunches in each beam. In this memo, luminosity data from the 3 {times} 3 configuration is first used to calculate vertical beam size, emittance and tune shift as a function of current. The data is then used to extrapolate to the case with either 6 {times} 6 or 9 {times} 9 bunches colliding in PEP. Vertical emittance growth from the separated bunch optics and dispersion at the IP are included in the calculations. The conclusion is that given a 90 mA current drive limitation in PEP, operating with 6 {times} 6 bunches yields the maximum luminosity. 9 refs., 6 figs.
- Research Organization:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Organization:
- DOE/ER
- DOE Contract Number:
- AC03-76SF00515
- OSTI ID:
- 6277847
- Report Number(s):
- PEP-NOTE-384; ON: DE91005770; TRN: 91-001682
- Country of Publication:
- United States
- Language:
- English
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