Today i carried out simulations for the Faraday cup for 25 degree cone angle impinged by a beam of 10kW on the inner diameter of 10mm.The flow rate I kept is 0.2kg per second and temperature of water at inlet around 25 degrees Celcius.However i will be actually using water from chillers at around 15-17 degrees.

• Now I need to calculate the heat distributions at various cone angles(30,45 ,60) so I can optimize the number of turns of the coils of the cooling pipe around the cup.However I am doubtful whether changing the cone angle would effect the heat distribution much?.The actual beam won't be falling exactly at the inner diameter,I have taken the case of the most focused beam.Since the beam size will be more heat load per mm will be reduced so I guess this flow rate will be sufficient enough.
• I need to carry out similar simulations using Molybdenum and Tantalum