1. Cryogenics
T. Suzuki
f2f meeting

2. Cryostat Design
Koike

3. Shields

4. -> Move to access flange ?
Issues
Connectionto SAS
Supports
Independent
Thermal contraction
Heat Leake
Adjustable Hole ?
Al 10mm thick
Inner: M~48kg
Outer: M~65kg
Assembling
Process ?
Octagonal
Al angle 75 x 75 x 9
View ports
-> Move to access flange ?
Stainless angle
100 x 100 x 6
Conductor pipes

5. Response to ground motion
Jan. 31st,2011
H. Yamaoka
Input to peripheral of bottom
Mozumi 50m K.Y. 2005

6. Cryo-top
Cryo-L
Cryo-F
Input
Cryo-R
Results
X-方向
Y-方向
Y方向
X方向

7. Transportation of cryostat in the tunnel
Initial install
Tunnel width = 4m
After installing vacuum duct
Passage width ~ 1.5m ?
Wider passage and corner ?
Larger dump hole ?
Ask to tunnel design.

8. Center Area Passage Width > 3.6m + Widen corner at the G.V. TU
Dump hole
3.5m~4.5m +
10ton chain block ?
Passage Width > 3.6m +
Widen corner at the G.V. TU

9. Cart for cryostat Flat cap 3m x 3m Size Ellipsoidal cap 3m x 4m
Cart 3m x 4m
Cart 3m x 3m
~ 2700
2650
3891
Flat cap 3m x 3m
Size
Ellipsoidal cap 3m x 4m

10. Cornering along the outside wall
Right corner
Width = w
Cart size : a, b (b<a) b w
Envelope of the inside is
convex to out outward. a
Clear to 45 deg. turning
＊w=3m for changing
direction of 3m x 3m cart
ー＞conering animation

11. Expected size of dumping hole
~ 4500
~ 3500
~ 2700
2200
2650
3891
Flat cap ~ 3.5m
Diameter
Ellipsoidal cap ~ 4.5m