1. Page 1 CRYOMODULE 650 (TESLA Style) Stand Alone Tom Peterson and Yuriy Orlov Collaboration Meeting 25 Jan 2011

2. Page 2 Cryo Schematic -- flow through 300 mm pipe

3. Page 3 Cryo Schematic -- empty 300 mm pipe for support only

4. Page 4 Pipe sizes

5. Concept Use an open 300 mm dia pipe as the support structure backbone –Open to insulating vacuum –Direct connection from 2-phase pipe to vapor return line via heat exchanger –Direct connection from 2-phase pipe to vent line –2-phase pipe sized large for venting from one end Advantages –300 mm pipe open for handling with present tooling –No end forces on 300 mm pipe or connections to it

6. Page 6 End Plate Beam Vacuum Vessel Cold mass supports (2+1) Power MC (8) 650 MHz Cryomodule (Tesla Style-Stand Alone)

7. Page 7 Fix. SupportSld. Support 300mm pipe 650 MHz cavity Gate Valve End Plate 650 MHz Layout

8. Page 8 Heat exchanger 300mm pipe Cryo-feed snout with cryogenic connections Gate Valve 650 MHz Cryomodule. End plate not shown.

9. Page 9 48” vacuum vessel pipe 300 mm pipe 80K shield, pipes: (Nom: 35mm-ID) Warm up-cool down pipe (nom 25mm ID) 4K return pipe (nom 25mm ID) 2-Phase pipe (161mm-ID) 80K Return pipe 4K Return pipe (?) X-Y Section

10. Page 10 Two He reservoirs with level sensor Cavity needle supports VAT needle supports (?) Cavity string & 300mm pipe

11. Page 11 300 mm pipe DS end US end Thermal compensator Flange should have a “hard” connection with 300mm pipe U-turn- 2-phase connect to heat exchanger 2-Phase pipe & Cavity string

12. Some design issues Uniform cooling of 300 mm pipe –During cool-down and warm-up –During steady-state operation –Thermal straps from 2-phase pipe (?) 300 mm pipe may carry 2-phase pipe pressure forces via supports to 2-phase pipe end flanges or elbows –Low force during normal 2 K, 31 mbar operation Clean room assembly procedure followed by closure of beam vacuum with end cap on insulating vacuum -- interference with vacuum valves

13. Page 13 Cavity He vessel (proposal)