TY - GEN
T1 - A study of a cooling configuration for an OFHC copper rebuncher
AU - Mazor, O.
AU - Bukai, M.
AU - Nusbaum, D.
AU - Rodnizki, J.
AU - Ziskind, G.
AU - Dyunin, E.
N1 - Publisher Copyright:
Content from this work may be used under the terms of the CC BY 3.0 licence (© 2018).
PY - 2020/1/1
Y1 - 2020/1/1
N2 - A four gap OFHC copper rebuncher is developed at SNRC as a research study and a risk reduction for the MEBT of SARAF Phase II proton/ deuteron linac. The rebuncher is designed to bunch a 5 mA CW beam at 176 MHz. The required cavity voltage according to beam dynamics evaluation is 150 kV with a beam aperture diameter of 40 mm, beam energy of 1.3 MeV/u with a Q value of 8000. Considering utilizing this cavity for enhancing the beam energy, the cooling configuration is explored for a cavity voltage of 300 kV, consuming 20 kW dissipated power, at a peak electric field of 14 MV/m, equivalent to the Kilpatrick limit. The electromagnetic study conducted with the CST MW Studio was reproduced at ANSYS HFSS. The simulated dissipated power was assigned to the ANSYS Fluent model to explore the resulted temperature map. Several evolved cooling configurations were studied, including cooling of the drift tubes. In this configuration the temperature rise along the cavity is in the range of 30 K. A detailed design of the four gap rebuncher is following this study.
AB - A four gap OFHC copper rebuncher is developed at SNRC as a research study and a risk reduction for the MEBT of SARAF Phase II proton/ deuteron linac. The rebuncher is designed to bunch a 5 mA CW beam at 176 MHz. The required cavity voltage according to beam dynamics evaluation is 150 kV with a beam aperture diameter of 40 mm, beam energy of 1.3 MeV/u with a Q value of 8000. Considering utilizing this cavity for enhancing the beam energy, the cooling configuration is explored for a cavity voltage of 300 kV, consuming 20 kW dissipated power, at a peak electric field of 14 MV/m, equivalent to the Kilpatrick limit. The electromagnetic study conducted with the CST MW Studio was reproduced at ANSYS HFSS. The simulated dissipated power was assigned to the ANSYS Fluent model to explore the resulted temperature map. Several evolved cooling configurations were studied, including cooling of the drift tubes. In this configuration the temperature rise along the cavity is in the range of 30 K. A detailed design of the four gap rebuncher is following this study.
UR - http://www.scopus.com/inward/record.url?scp=85086309426&partnerID=8YFLogxK
U2 - 10.18429/JACoW-LINAC2018-MOPO093
DO - 10.18429/JACoW-LINAC2018-MOPO093
M3 - Conference contribution
AN - SCOPUS:85086309426
T3 - Proceedings of the 29th Linear Accelerator Conference, LINAC 2018
SP - 200
EP - 203
BT - Proceedings of the 29th Linear Accelerator Conference, LINAC 2018
PB - JACoW Publishing
T2 - 29th International Linear Accelerator Conference, LINAC 2018
Y2 - 16 September 2018 through 21 September 2018
ER -