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Kim, J.H.

Paper Title Page
THO2A02 Beam Dump Development for the Korean Proton Accelerator 563
  • C.S. Gil, J.-H. Jang, D.H. Kim, J.H. Kim
    KAERI, Daejon

A beam dump for 20 MeV, 4.8mA proton beam had been manufactured in KAERI. The 20 MeV beam dump was made of graphite to reduce radioactivity by the materials around the beam dump as well as the beam dump itself. The beam dump was designed to by placing two plates of 30 cm by 60 cm at an angle of 12 degree. The IG430 graphite and OFHC copper were brazed with TiCuSil filler metal for cooling. The proton beam was assumed to be expanded for the peak heat flux in the graphite to be less than 200 W/cm2. The beam dump designed for maximum temperatures of graphite, copper and cooling water to be less than 223, 146 and 85 celsius degrees, respectively. The activation analysis of the beam dump was also performed with MCNP code. The sensitivity analyses of graphite tensile stresses to optimize the thicknesses of graphite with copper brazing were performed with ANSYS code. The tensile stress of graphite during the brazing process was the smallest around 1 cm thickness of graphite. A 100 MeV proton beam dump was designed with copper. The optimal angles between two copper plates for the minimum peak heat fluxes are 10~20 degrees. The peak heat flux in the copper plates at 15 degree is 333 W/cm2.