High Intensity Proton Acceleration at the Brookhaven AGS - an Update
Abstract
The AGS accelerator complex is into its third year of 60+ teraproton per cycle operation. The "hardware" making up the complex as configured in 1997 is briefly reviewed. The present level of accelerator performance is discussed. This includes the beam transfer efficiencies at each step in the acceleration process, i.e. losses; which are a serious issue at this intensity level. Progress made in understanding beam behavior at the Linac-to-Booster injection, at the Booster-to-AGS transfer as well as across the long AGS accumulation porch is presented. The state of transition crossing, with the gamma-tr jump, is described. Coherent effects including those driven by space charge are important at all of these steps. Finally, extraction efficiency and the slowly extracted beam's intensity and emittance time structure during the spill is given.
- Publication:
-
APS Meeting Abstracts
- Pub Date:
- May 1997
- Bibcode:
- 1997APS..PAC..7P01A