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Title: The Continuous Electron Beam Accelerator Facility at 12 GeV

Journal Article · · Physical Review Accelerators and Beams
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  1. Thomas Jefferson National Accelerator Facility, Newport News, VA (United States); et al.
  2. Thomas Jefferson National Accelerator Facility
  3. Thomas Jefferson National Accelerator Facility; Old Dominion University
  4. Thomas Jefferson National Accelerator Facility; University of Connecticut
+ Show Author Affiliations

This review paper describes the energy-upgraded Continuous Electron Beam Accelerator Facility (CEBAF) accelerator. This superconducting linac has achieved 12 GeV beam energy by adding 11 new high-performance cryomodules containing 88 superconducting cavities that have operated cw at an average accelerating gradient of 20MV/m. After reviewing the attributes and performance of the previous 6 GeV CEBAF accelerator, we discuss the upgraded CEBAF accelerator system in detail with particular attention paid to the new beam acceleration systems. In addition to doubling the acceleration in each linac, the upgrade included improving the beam recirculation magnets, adding more helium cooling capacity to allow the newly installed modules to run cold, adding a new experimental hall, and improving numerous other accelerator components. We review several of the techniques deployed to operate and analyze the accelerator performance and document system operating experience and performance. In the final portion of the document, we present much of the current planning regarding projects to improve accelerator performance and enhance operating margins, and our plans for ensuring CEBAF operates reliably into the future. For the benefit of potential users of CEBAF, the performance and quality measures for the beam delivered to each of the experimental halls are summarized in the Appendix.

Research Organization:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Old Dominion Univ., Norfolk, VA (United States); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); Univ. of Connecticut, Storrs, CT (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP)
Grant/Contract Number:
89243024CSC000002; AC02-07CH11359; AC05-06OR23177
OSTI ID:
2429768
Report Number(s):
DOE/OR/23177--7238; FERMILAB-PUB--25-0992-SQMS; JLAB-ACC--23-3940; oai:inspirehep.net:2818495; arXiv:2408.16880
Journal Information:
Physical Review Accelerators and Beams, Journal Name: Physical Review Accelerators and Beams Journal Issue: 8 Vol. 27; ISSN 2469-9888
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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Figures / Tables (58)

FIG. 12(p. 18)figure FIG. 12
FIG. 2(p. 7)figure FIG. 2
FIG. 10(p. 15)figure FIG. 10
FIG. 5(p. 10)figure FIG. 5
FIG. 1(p. 2)figure FIG. 1
FIG. 9(p. 14)figure FIG. 9
TABLE I(p. 10)table TABLE I
FIG. 8(p. 13)figure FIG. 8
FIG. 4(p. 9)figure FIG. 4
FIG. 13(p. 18)figure FIG. 13
FIG. 3(p. 8)figure FIG. 3
FIG. 14(p. 19)figure FIG. 14
Extended Data Fig. 10(p. 29)figure Extended Data Fig. 10
Fig. 4(p. 8)figure Fig. 4
FIG. 11(p. 16)figure FIG. 11
Fig. 1(p. 3)figure Fig. 1
Fig. 2(p. 4)figure Fig. 2
Fig. 3(p. 7)figure Fig. 3
FIG. 6(p. 12)figure FIG. 6
FIG. 7(p. 12)figure FIG. 7
Extended Data Fig. 4(p. 23)figure Extended Data Fig. 4
Extended Data Fig. 3(p. 22)figure Extended Data Fig. 3
Extended Data Fig. 9(p. 28)figure Extended Data Fig. 9
Extended Data Fig. 8(p. 27)figure Extended Data Fig. 8
Extended Data Fig. 7(p. 26)figure Extended Data Fig. 7
Extended Data Fig. 1(p. 20)figure Extended Data Fig. 1
Fig. 7(p. 7)figure Fig. 7
Extended Data Fig. 6(p. 25)figure Extended Data Fig. 6
Extended Data Fig. 5(p. 24)figure Extended Data Fig. 5
Fig. 8(p. 8)figure Fig. 8
Fig. 2(p. 3)figure Fig. 2
Fig. 6(p. 6)figure Fig. 6
Extended Data Fig. 2(p. 21)figure Extended Data Fig. 2
Fig. 3(p. 3)figure Fig. 3
Fig. 1(p. 2)figure Fig. 1
Fig. 4(p. 4)figure Fig. 4
Fig. 5(p. 5)figure Fig. 5
Fig. 6(p. 9)figure Fig. 6
Table 7(p. 12)table Table 7
Fig. 7(p. 8)figure Fig. 7
Table 2(p. 8)table Table 2
Table 1(p. 5)table Table 1
Fig. 5(p. 9)figure Fig. 5
Table 2(p. 6)table Table 2
Table 1(p. 5)table Table 1
Fig. 2(p. 4)figure Fig. 2
Table 3(p. 9)table Table 3
Figure 6(p. 10)figure Figure 6
Figure 5(p. 10)figure Figure 5
Figure 2(p. 7)figure Figure 2
Fig. 4(p. 6)figure Fig. 4
Figure 3(p. 8)figure Figure 3
Figure 1(p. 4)figure Figure 1
Figure 4(p. 9)figure Figure 4
Fig. 13(p. 12)figure Fig. 13
Fig. 8(p. 9)figure Fig. 8
Fig. 9(p. 9)figure Fig. 9
Fig. 3(p. 5)figure Fig. 3

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