학술논문
Beam extraction studies at 900 GeV using a channeling crystal
Document Type
article
Author
R. A. Carrigan, Jr.; D. Chen; G. Jackson; N. Mokhov; C. T. Murphy; S. Baker; A. Bogacz; D. Cline; S. Ramachandran; J. Rhoades; J. Rosenzweig; A. Asseev; V. Biryukov; A. Taratin; J. A. Ellison; A. Khanzadeev; T. Prokofieva; V. Samsonov; G. Solodov; B. Newberger; E. Tsyganov; H.-J. Shih; W. Gabella; B. Cox; V. Golovatyuk; A. McManus
Source
Physical Review Special Topics. Accelerators and Beams, Vol 5, Iss 4, p 043501 (2002)
Subject
Language
English
ISSN
1098-4402
Abstract
Luminosity-driven channeling extraction has been observed for the first time in a 900 GeV study at the Fermilab Tevatron. This experiment, Fermilab E853, demonstrated that useful TeV level beams can be extracted from a superconducting accelerator during high luminosity collider operations without unduly affecting the background at the collider detectors. Multipass extraction was found to increase the efficiency of the process significantly. The beam extraction efficiency was about 25%. Studies of time dependent effects found that the turn-to-turn structure was governed mainly by accelerator beam dynamics. Based on the results of this experiment, it is feasible to construct a parasitic 5–10 MHz proton beam from the Tevatron collider.