H/sup /minus// injection into the low-energy booster of the SSC (Superconducting Super Collider)
Protons are accumulated into the low-energy booster of the SSC by utilizing H/sup /minus// ..-->.. H/sup +/ conversion in a 225-..mu..g/cm/sup 2/ carbon stripping foil. Synchronous injection is performed for 26 turns into stationary rf buckets, thereby allowing operation with variable bunch spacing. By injecting the beam offset in x and y we obtain the required rms normalized transverse emittance area of 0.75 ..pi.. mm-mr. Similarly the required rms longitudinal emittance area of 1.75..pi.. /times/ 10/sup /minus/3/ eVs is obtained by injecting single linac micropulses, centered at /phi/ = 0, and dp/p = +0.12%, into each 49.9-MHz rf bucket formed with an rf voltage of 350 kV. The transverse space-charge tune shift is /minus/0.17 for 10/sup 10/ protons/bunch accumulated at 600 MeV. 1 ref., 5 figs., 1 tab.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 6276376
- Report Number(s):
- LA-UR-89-978; CONF-890335-38; ON: DE89009353
- Resource Relation:
- Conference: 13. particle accelerator conference, Chicago, IL, USA, 20 Mar 1989; Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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