CRYOMODULE 650 TESLA Style Stand Alone Tom Peterson

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

Cryo Schematic -flow through 300 mm pipe Page 2

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

Pipe sizes Page 4

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

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

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

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

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

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

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

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

Cavity He vessel (proposal) Page 13