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Layout and Installation

MICE Collaboration Meeting, RAL, October 27-29, 2004

Elwyn Baynham, Tom Bradshaw, Paul Drumm,Matthew Hills, Yury Ivanyushenkov, James Rochford and Tony Jones

RAL

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• Layout

• Beam line shielding layout

• Beam line infrastructure

• MICE support structure

Scope

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MICE and beam line shielding

• New round of consultations with ISIS Safety Officer

• Beam line radiation shielding:- Roofed block house;- Labyrinth –type entrance;- 1.5 m of steel + 0.75 m of concrete in the direction of the beam;- Beam stopper.

• MICE radiation shielding:- Shielded doors- Room for possible shielding for ISIS ion source hall;- Room for possible shielding for ISIS control room

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Layout

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Beam line shielding layout

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Solenoid in test position

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PSI solenoid infrastructure

• New nose peace and temporary lead shielding• Cryogenics

- layout- specs

• Site for compressor room • Support structure

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PSI solenoid nose piece

Nose piece to be replaced

New temporary leadcover to be added

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PSI solenoid infrastructure: Layout

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RIKEN decay solenoid compressor room

PSI solenoid compressor room - an example

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Site for compressor room

MICE Hall

ISIS Control Room

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Around MICE hall (2)

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Possible site for PSI solenoid compressor

It seems, the only possible site BUT access for installation is very difficult.

Solution: install compressor on the roof of MICE hall.

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PSI solenoid compressor location

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PSI solenoid support structure and shielding

Concrete ISIS wall

Steelshielding

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MICE support structure: Specification

• Requirements/specification: - to move (all) MICE modules out the beam (to the side direction) for various MICE stages• Accuracy/tolerances: - along the beam +/- 1 mm - across the beam +/- 1 mm• Adjustment: - adjustment possibility is required.• Locking mechanism: - required.• Loads: - max load is 6.65 tonnes.• Force transfer function: - gravity force to the floor; - module-to-module axial force to the floor ?

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MICE support structure: Module weights

Module Weight, kg

AFC module 1700

RF module 4636

Radiation shield 310

Tracker module 6650(including 1200 kg of magnetic shield)

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MICE support structure: Options

Concrete floor

Simple slides arrangement

Rails

Low-friction material blocks

Sliding carriages

Platform

HEPCO SL2 stainless steel based slide system

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Forces on Modules for Flip Mode Cases in Stage 6

Case 1 Case 2 Case 3 Case 4 Case 5

Average p (MeV/c) 200 240 200 170 140

Absorber beta (cm) 42 42 25 15 7

Force on the module (MN):

Central focus pair module 0 0 0 0 0

Coupling coil module 0.1422from centre

0.2143

from centre

0.1140from centre

0.0536from centre

0.0070from centre

Edge focus pair module 0.0693from centre

0.0877from centre

0.0967from centre

0.0846from centre

0.0631from centre

Tracker solenoid module -0.2372towards centre

-0.3343towards centre

-0.3000towards centre

-0.2284towards centre

-0.1308towards centre

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Forces on Modules for Non-Flip Mode Cases in Stage 6

Case 1 Case 2 Case 3 Case 4 Case 5

Average p (MeV/c) 200 240 200 170 140

Absorber beta (cm) 42 42 25 15 7

Force on the module (MN):

Central focus pair module 0 0 0 0 0

Coupling coil module 0.1239towards centre

0.1859towards centre

0.1005towards centre

0.0756towards centre

0.0278towards centre

Edge focus pair module 0.0123towards centre

0.0372towards centre

0.0101from centre

0.0195from centre

0.0814from centre

Tracker solenoid module 0.3588towards centre

0.4861towards centre

0.4321towards centre

0.4526towards centre

0.3998towards centre

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Maximal Forces on Modules in Stage 6

Module Max force,

MN

Case

Central focus pair module 0 All

Coupling coil module 0.2143from centre;

0.1859towards centre

Flip mode, Case 2

Non-Flip mode, Case 2

Edge focus pair module 0.0967from centre;

0.0372towards centre

Flip mode, case 3

Non-Flip mode, Case 2

Tracker solenoid module 0.4861towards centre

Non-Flip mode, Case 2

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Next steps

• Beam line layout:- continue on the beam line shielding (elevation view, roof ?);- beam line infrastructure layout (including cryogenics);- PSI magnet support structure and shielding design.

• MICE layout:- add more components (RF system, hydrogen system);- continue on magnetic shielding design.

• MICE support structure:- finish magnetic forces analysis;- continue on force transfer scheme;- suggest conceptual design for support structure.