C100 Cryomodule End Can Pipeline Design per ASME B31
C100 Cryomodule End Can Pipeline Design per ASME B31
C100 Cryomodule End Can Pipeline Design per ASME B31
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JLAB-TN-08-023Thermal Analysis of <strong>C100</strong> <strong>Cryomodule</strong> Coaxial Heat Station and RF Cables3. Type 27 Gore coax cable having silver-plated cop<strong>per</strong> conductors:0.0280.078a := ⋅in b := ⋅in22b = 0.039inRF loss by vendor's formula:fLos_db ( x) := 0.02314+ 0.00904⋅+ ( −0.01663)⋅Los_db ( L o ) = 1.459⎛10 9 ⋅Hzf+10 9 ⋅Hz− Los_db()x⎜10 ⎟P l_vendor () x := P input ⋅⎝1 − 10 ⎠ P l_vendor L o⎞x⋅12⋅in⎛⎜⎝( ) = 2.853W0.00353+ 0.00270⋅f+ 0.13664⋅10 9 ⋅Hzf10 9 ⋅Hz⎞⎟⎠RF loss by classic formula:Rs := π⋅f⋅μ o ⋅ρ_AgRs = 0.013ΩP inputxI sq := R i () x := ⋅Rs R i L oZ o2π⋅aTotal RF surface loss:⋅( )P l () x := I sq R o () x + R i () x P l L o( ) = 2.912Wx= R o () x := ⋅Rs R o L o2π⋅b( ) 10.714ΩA plot of RF power loss in cable of length 1.0' to 6.0' is shown below:3( ) = 3.846ΩP l_vendor ( x)2P l ( x)11 2 3 4 5x12⋅in622/23
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