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MICE Hall Layout
MICE Collaboration Meeting, LBNL, February 12, 2005
Paul Drumm
for
Yury
& the RAL team
2
• Hall layout
• Beam line shielding layout
• PSI solenoid infrastructure layout
• Plans
Access to MICE & ISIS running
Scope
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Layout (plan view)
Drawing by Tony Jones
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Layout (elevation view)
Drawing by Tony Jones
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Layout (cross-section view)
Drawing by Tony Jones
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MICE module max height
Concrete aperture
Important: The max height from the bottom of the frame to the top
of a module should not exceed 3200 mm
Concertina door
Hinged door
Max opening 3200 mm
Max opening 3360 mm
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MICE and beam line shielding
Consultations with ISIS Radiation Safety Officer:
Implemented:
• Beam line radiation shielding:
- Roofed block house;no
- Labyrinth –type entrance;yes
- 1.5 m of steel + 0.75 m of concrete in the direction of the beam;yes
- Temporarily shielding block (1.5 m of steel + 0.75 m of concrete)yes
+ 1 m of concrete (very recent demand));not yet
- Beam stopper.Yes(!)
•MICE radiation shielding:
- Shielded doorsyes
- Room for possible shielding for ISIS ion source hall;yes
- Room for possible shielding for ISIS control room yes
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Beam line shielding layout
Shielding:
Steel – 1153 tonnes
Concrete – 146 tonnes
Existing shielding
New shielding:
Steel
Movable steel
Concrete
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Solenoid in test position
Temporary shielding block
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MICE and beam line shielding: Problems and solutions
Problem:
•Very heavily shielded beam line high cost can MICE afford it ?
But do we really need that heavy shielding ?
Solution:
•Calculate doses in the MICE hall for the worst scenario case
•Optimize the shielding
•Discuss the issue again with ISIS Safety Officer
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PSI solenoid infrastructure
• Magnet preparation for shipment :
- New nose piece and temporary lead shielding
(design completed).
- Need to agree few technical issues for
transport with PSI.
• Cryogenics
- layout (suggested)
- specs (ready)
• Site for compressor (suggested)
• Support structure (conceptual design completed)
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PSI solenoid nose piece
Nose piece to be replaced
New temporary lead
cover to be added
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PSI solenoid nose shielding cover
Drawing by Matthew Hills
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PSI solenoid cryogenics layout
He Transfer lines
He Refrigerator
Compressor
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PSI solenoid support structure and shielding
ConcreteISISwall
Steel
shielding
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Hall Layout: Plans
• Finalize shielding layout
(after the agreement with ISIS Radiation Safety Officer is reached)
• Add RF system infrastructure
• Modify layout for hydrogen system
• Add new support system (talk by Elwyn)