Design and test of 704 MHz and 2.1 GHz normal conducting cavities for low energy RHIC electron cooler
The low energy RHIC electron cooler (LEReC) is currently under commissioning at BNL to improve RHIC luminosity for heavy ion beam energies below10GeV/nucleon. The linac of LEReC consists of a dc photoemission gun, one 704 MHz superconducting radio frequency booster cavity, and three normal conductin...
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Published in | Physical review. Accelerators and beams Vol. 22; no. 3; p. 030101 |
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Main Authors | , , , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
College Park
American Physical Society
05.03.2019
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Subjects | |
Online Access | Get full text |
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Summary: | The low energy RHIC electron cooler (LEReC) is currently under commissioning at BNL to improve RHIC luminosity for heavy ion beam energies below10GeV/nucleon. The linac of LEReC consists of a dc photoemission gun, one 704 MHz superconducting radio frequency booster cavity, and three normal conducting cavities. It is designed to deliver a 1.6–2.6 MeV electron beam, with peak-to-peak momentum spreaddp/pof less than±7×10−4. Two of the three normal conducting cavities will be used in LEReC for energy spread correction: a single-cell 704 MHz cavity for energy dechirping and a three-cell 2.1 GHz third harmonic cavity for rf curvature correction. In this paper, we present the designs and rf test results of these two cavities. |
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Bibliography: | AC02-98CH10886; AC02-05CH11231; SC0012704; AC02-07CH11359 BNL-211320-2019-JAAM; arXiv:1804.02007; FERMILAB-PUB-18-756-TD USDOE Office of Science (SC), High Energy Physics (HEP) USDOE Office of Science (SC), Nuclear Physics (NP) |
ISSN: | 2469-9888 2469-9888 |
DOI: | 10.1103/PhysRevAccelBeams.22.030101 |