1. 1 Comparison of Power Depositions X. Ding, D. B. Cline, UCLA H. Kirk, J. S. Berg, BNL Collaboration Meeting July 2, 2010

2. 2 Part 1: Vary Shielding Material

3. 3 Part1: Introduction Using MARS15 to study energy deposition. Study II geometry and magnetic field map. Using optimized target parameters for Hg jet & Proton Beam (length of 75cm on z- axis, radius of 4mm for target, tilt of 78.13 mrad for beam and 96.68mrad for Hg Jet to z-axis). The number of particles in a given pulse of beam (4MW, 8GeV) is 3.125*10 15 s -1.

4. 4 Part 1: Target Geometry Res Sol Hg Jet SC1 SC2 SC3 SC4 SC5 FeCo Pre-Trgt Air BeWindow (z=600cm) Hg Pool WC Shield STST Bottle Hg Jet

5. 5 Part 1: Power Deposition 8GeV & 4MW Proton beam Shielding Material Density (g/cm 3 ) Power Dep. In SC1 (kW) Power Dep. in Shielding material (kW) 80%WC+20%Water12.68 24.7801828 100%HG13.54633.1151668 100%W19.320.6051903 60%W+40%HG16.99423.9151768

6. 6 Part 1: Power Deposition 8GeV & 4MW Proton beam Shielding Material Assumed Density (g/cm 3 ) Power Dep. In SC1 (kW) Power in Shielding material (kW) TA (Z=73)13.546 29.961757 W (Z=74)13.54628.961807 AU (Z=79)13.54632.5451668.5 HG (Z=80)13.54633.1151668 PB (Z=82)13.54633.8051714 BI (Z=83)13.54631.354589 (unbelievable ?) ( Increase from low energy neutrons)

7. 7 Part 2: Beryllium Target

8. 8 Part 2: Introduction Using MARS15 to study energy deposition. Study II geometry and magnetic field map. Using optimized target parameters for Beryllium Target & Proton Beam (length of 70cm on z-axis, radius of 6mm for Be target, tilt of 45 mrad for both target and beam to z-axis). The number of particles in a given pulse of beam (4MW, 8GeV) is 3.125*10 15 s -1.

9. 9 Part 2: Target Geometry

10. 10 Part 2: Power Deposition (PD) and Meson Production TargetPD in SC1 (kW)PD in WC Shield (kW) Beryllium12.0951888.5 Mercury24.7801828 TargetMesonsMesons normalized to beam power (Mesons/Protons/GeV) Beryllium183440.02293 Mercury282400.03530 TargetBeam power (MW) MesonsScaled Beam Power (MW) Scaled Mesons Beryllium6.15828240 Mercury428240 Proton beam: 8GeV & 4MW; Shielding: 80%WC+20%Water KE Cut: 40MeV<KE<180MeV

11. 11 Part 2: Distribution of Energy Deposition Beryllium Mercury

12. 12 Part 2: Power Depositions Proton beam: 8GeV & 4MW; Shielding: 80%WC+20%Water Regional Name MercuryBeryllium Power [kW] Scaled Power [kW] WC Shield18281888.52907.285 Hg Pool13.285 Hg Jet378.6 Beryllium Target145.5223.99 Be Window2.841.121.724 STST Bottle416.25687.751058.769 Resistive Sol116.859.8592.137 Fe Plug11.3710.77

13. 13 Part 2: Energy Deposition Proton beam: 8GeV & 4MW; Shielding: 80%WC+20%Water Regional Name MercuryBeryllium Power [kW] Scaled Power [kW] SC124.7812.09518.62 SC22.7691.95753.014 SC31.09450.84351.299 SC40.3760.76551.178 SC50.0710.4390.676 SC60.0710.2770.426 SC72.33313.89521.39 SC80.9925.859.0 SC90.60753.75055.774 SC100.2752.6414.066 SC110.3331.7362.673 SC120.2321.442.217 SC131.9758.9213.73