Title :
On the mechanical design of a 1.5 GHz Landau cavity
Author :
Yang, T.T. ; Lin, M.C. ; Wang, Ch. ; Chang, L.H. ; Chang, S.S. ; Lau, W.K. ; Kuo, C.C.
Author_Institution :
Synchrotron Radiat. Res. Center, Hsinchu, Taiwan
Abstract :
A third harmonic Landau cavity with the fundamental mode of about 1.5 GHz is under development at SRRC. The cavity consists of inner copper layer and outer stainless steel layer. The vacuum-brazing process is adopted for cavity construction. The maximal power flow density on the cavity surface will be about 52.19 W/cm2, as the total thermal loading of 32 kW. To verify the cooling capacity, the finite element method is adopted to perform the thermal and stress analyses. Under 15 m3/hr water flow rate, the temperature rise on the cavity body will be less than 14°C, and the maximal equivalent stress on the copper layer of 29.75 N/mm2(MPa) is achieved, which is much less than the yielding stress of copper
Keywords :
accelerator cavities; electron accelerators; finite element analysis; storage rings; thermal stresses; 1.5 GHz; 32 kW; SRRC storage ring; cavity body; cavity construction; cavity surface; cooling capacity; finite element method; fundamental mode; inner copper layer; maximal equivalent stress; maximal power flow density; mechanical design; outer stainless steel layer; temperature rise; third harmonic Landau cavity; total thermal loading; vacuum-brazing process; Cooling; Copper; Finite element methods; Heat transfer; Joining processes; Load flow; Solids; Steel; Temperature; Thermal loading;
Conference_Titel :
Particle Accelerator Conference, 1997. Proceedings of the 1997
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-4376-X
DOI :
10.1109/PAC.1997.753106
