RAL Integration Issues

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Nov 26, 2013 (3 years and 6 months ago)

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1

RAL Integration Issues

MICE Collaboration Meeting, Osaka, August 1
-
3, 2004

Elwyn Baynham, Paul Drumm, Yury Ivanyushenkov, Tony Jones


RAL

2




Layout



Beam height



Support structure



Beam line shielding layout

Scope

3

MICE layout

4

Concrete floor

Support structure

Dia 650

Aperture in ISIS wall

1684.2

160*

1524*

Height of MICE beam

5

MICE support structure : Concept



Requirements/specification:


-

to move MICE modules out the beam (to the side direction) for various
MICE stages


( Qs: Do we need to move ALL modules?; Is the side direction preferable?)



Accuracy/tolerances:


-

along the beam +/
-

1 mm


-

across the beam +/
-

1 mm


(Q: What position accuracy is required for module
-
to
-
module connection ?)



Adjustment:


-

adjustment possibility is required.



Locking mechanism:


-

required.



Loads:


-

max load is 3
(?)

tonnes.



Force transfer function:


-

gravity force to the floor;


-

module
-
to
-
module axial force to the floor ?


6

MICE support structure : Options



Commercial rail system:


-

usually high accuracy (+/
-

0.1 mm )


( Q: Do we need it?)


-

proven design;


-

delivery times


days
( if off
-
the
-
shelf product);



BUT

high cost.




Simple slides arrangement:


-

accuracy;


-

cost;


-

prototype.


7

HEPCO SL2 stainless steel based slide system

Item Price/each, £ No./MICE Total No. Total price,


with VAT,



module k£ k£


Stock SL2 carriage (type AU SS L 76) 460 4 28 12.880


15.134


in assembled and adjusted condition


Spacer slide (rail) SS NL 76

Length of 4.5 m in 3
-
m and 1.5
-
m sections 2475 2 14 34.650 4
0.714





Grand total, k£ 55.848


Delivery time: 3
-
5 days



Hepco Slide Systems Ltd, Devon England EX16 6TG

MICE support structure: Commercial system

8

MICE support structure: Commercial system (2)

9

Concrete floor

Simple slides arrangement


MICE support structure: Alternative solution

Rails

Low
-
friction material blocks

Sliding carriages

Platform

10

MICE support structure vs. MICE stages

Problem
: some of MICE modules will be located in various positions along
the beam for different stages of the experiment.


Possible solution:

sliding rails (rails on rails).

Concrete floor

Platform

Steel plate

HEPCO rail system

Beam

Bottom rails

20

40

80

20

160*

MICE

module

11

Beam line and shielding layout

Beam line shielding:





shields MICE against full beam loss in the ISIS beam pipe
(
-
> 2m of steel is required);



is removable for access to PSI solenoid;



ideally allows to work on the beam line components in the
MICE hall even when the ISIS beam is on
-
> concept of temporary shielding.


12

Beam line and shielding layout

13

Steel shielding

Concrete shielding

17
-
tonne magnet

PSI solenoid

Crane zone limits

ISIS wall

Beam line shielding

Existing steel

shielding

14

PSI solenoid support structure and shielding

Concrete
ISIS
wall

Steel

shielding

15

Temporary shielding arrangement

These two magnets are in Off
-
beam position

PSI solenoid is in Test position

Temporary steel shielding

16

Next steps



MICE general layout:


-

start implementing MICE sub
-
systems (RF power system,
hydrogen system etc.) and magnetic shielding (requires more
modelling).




Support structure:


-

agree on requirement/specs;


-

agree on concept;


-

get cost estimations for various options.




Beam line and shielding layout:


-

finish detailed design;


-

get OK from ISIS Radiation Safety Officer