1. BSY D10 replacement dump Proposal Dieter Walz Alev Ibrahimov March 20 2015

2. Existing D10 Dump

3. Proposed D10 location in MUON shield

4. Disadvantages using D10 as a BSY Dump in LCLS2 - This device is been in service for 45 years and internal features condition is unknown and unpredictable; - This is a multipurpose device and will be used only as a dump; - Device is very big – about 2m X 5m X 1m; - If D10 fails is not fixable. No spares; - About 40% of MUON shield needs to be removed only to place D10 inside; - Before reuse, D10 needs significant modification – about $50K; - Because of the shape difficult to fill the cavities around the body to comply with shielding requirements from RP; - Installation inside the MUON shield and alignment will be very difficult

5. Proposed D10 replacement dump in BSY Detailed information for replacement dump proposed by Dieter was sent on Mar 12 2015. Link to this document is below: V:\LCLS\LCLS_II\Alev\LCLS2\BSY\D10 dump\D10 Replacement dump\Dieters D10 replacement dump This proposal is based on the 300kW dump tested at SLAC. Drawing for this dump can be find here: http://mdweb.slac.stanford.edu/Doc%20Control.Utilities.View%20Images.displayImage.p hp?img=pdf/Released/4/ad4030040000.pdf

6. Proposed D10 replacement dump in BSY

7. Similar design 120kW Dump (for reference only not to scale)

8. Proposed D10 replacement dump in BSY Inside of 500kW BASII Sphere dump after Test at Pav=496kW (11-25-68)

9. D10 replacement dump (Similar to 300kW and 500kW BASII Sphere dumps) 44” 14” 2 SCH80 AL Pipe Water “in” 2 SCH80 AL Pipe Water “out” 12 SCH40 Dia. Al body with AL. balls 12” Dia. solid Copper Back up

10. D10 replacement dump material Aluminum 6061 Dia 2-1/2” pipes Aluminum 1100 Aluminum 6061 Dia12” Copper Aluminum balls ½”dia

11. D10 replacement dump material –cont. SS304 Aluminum 1100 Vacuum Water & Al balls Window AL6061 1/8” thick

12. D10 replacement dump cooling Supply Return 60gpm Beam Vacuum Water Al 6061 Window

13. D10 replacement dump aluminum seal Aluminum gasket dimensions Flange Al 6061 Compressing Flange Al 6061 Gasket Al 1100 Window Al 6061

14. D10 & Replacement Dump comparison D10 New D10

15. 1. Body – 12 SCH 40 Al6061 – 4’ - $782.28 2. Water pipes – 2 SCH 80 – 10’ - $101.20 3. Copper back up – 12” X 12” X 1” Pl – Qty14 - $5932.64 4. Flange – 15”X15”X 1.25” Pl Al6061 - $156.79 5. Flange – 15” X 15” X 1” SS304 - $590.87 6.Dish head 304SS - $250 EE (engineering estimate) 7.Flange 3-3/8” - $34 8.Custom flange - $100 EE 9.Window – Al6061 - $150 EE 10. Gasket small - $120 EE 11. Gasket large - $250 EE 12.Aluminum balls ½”dia – on hand 13.Hardware MISC - $250 Material Total - $8718.78 Estimated dump cost - $34875.12 (Based on Material cost X 4) Support brackets and stand not included. Estimated complete cost ready for installation -$50-$55K New dump preliminary cost estimation

16. What’s next? - PRD D10 replacement dump – author; - RP requirements – author; - D10 replacement dump design – engineering hours, design hours, start, end( time & schedule); - New dump ESD – time & schedule; - PDR – time & schedule; - FDR – time & schedule; - PPS dump requirements; - Facility modification – (water supply, return). Pipe connections. Water supply source (“aluminum” only water); - Manufacturing – time & schedule; - MUON modification and dump installation – time & schedule;

17. END

18. Back up slides

22. Aluminum back up – 76lb. About $61

24. D10 & D10 replacement dump in MUON shield LCLSI Line (in red) LCLSscS Line (in yellow) Existing D10 (transparent red) D10 replacement (in silver)

25. D10 & D10 replacement dump in MUON shield – front view dimensions LCLSI Line (in red) LCLSscS Line (in yellow) Existing D10 (transparent red) D10 replacement (in silver) LCLSscD

26. D10 & D10 replacement dump in MUON shield – top view dimensions LCLSI Line (in red) LCLSscS Line (in yellow) Existing D10 (transparent red) D10 replacement (in silver) LCLSscD

27. D10 replacement dump in MUON shield – top view dimensions LCLSI Line (in red) LCLSscS Line (in yellow) D10 replacement (in silver)

28. D10 replacement dump in MUON shield – front view dimensions LCLSI Line (in red) LCLSscS Line (in yellow) D10 replacement (in silver)