PD Solenoid Cryostat Update

1
PD Solenoid Cryostat Update

• T. Page
• 10/06/2005

2
Solenoid Magnet Cryostat

• Working concept based on 104.3 mm long solenoid
  magnet (100 mm coil length).
• Single support post
• heat load to 4 K lt 0.2 W.
• Cryostat length
• Vacuum vessel 180 mm.
• Flange to flange (installed) 225 mm
• HTS leads not yet integrated into design.

3
Solenoid Cryostat Concept
4
Cryostat x-section, front view
HTS leads will fit in this area.
5
Cryostat side views
6
Solenoid string assembly
7
Solenoid string close-up
8
Helium line connections

• Main helium line will use Conoseal flanges with
  metal seals (same style as in the Tevatron,
  different size)
• Cooldown line and LN2 lines will be the same
  flanges as the 2? and LN2 in the Tevatron (metal
  seals).
• Vacuum flange will be either a V-band style like
  the Tevatron or a ISO LF banded-clamp, both use
  o-rings.

9
Helium line, front view
10
Helium line, side view.
Vacuum bellows open.
Vacuum bellows closed.
11
Helium line x-section, top view
Main Helium pipe
Cool down line
12
Cavity-Solenoid Connection

• Propose to use Helicoflex flanges and seals.
• Low profile quick disconnect clamps.
• Metal seals.
• Able to incorporate bellows at each interconnect.
• Fits in 40 mm of space in model but need to
  ensure real connection can be made in that amount
  of space.
• Helicoflex flanges and seals are used at MTF for
  cold testing LHC IR Quadrupole magnets.

13
Cavity Solenoid connection
14
Cavity Solenoid connection
15
Cavity Solenoid connection
16
Flange close-up
Installed.
Bellows compressed.
17
Flange detail
18
Flange detail
19
Flange picture
20
Flange picture