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Muon Filter Design and Installation. Outline: Filter design and basic concept to ensure seismic stability Filter Installation and the required tooling. Muon Filter Design. General points: - PowerPoint PPT Presentation
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18 June 2003 1Integration Review B. Schmidt
Outline:
• Filter design and basic concept to ensure seismic stability
• Filter Installation and the required tooling
Muon Filter Design and Installation
18 June 2003 2Integration Review B. Schmidt
General points:• Muon filters are made of iron blocks
which have been recuperated from WANF. Blocs are being cleaned and painted at present.
• The large blocks (FT1688) are of (L,W,H): 159.7±0.3 79.7±0.3 80±0.8 cm3
• They iron walls have to be installed within an envelope 82cm
->Each block must be positioned with a precision of ±2mm along the beam axis
-> Special tooling is required to position the blocks for building the iron walls
Muon Filter Design
18 June 2003 3Integration Review B. Schmidt
Muon Filter: Block Cleaning
18 June 2003 4Integration Review B. Schmidt
Concept for seismic stability: Create mono-bloc
Muon Filter Design
18 June 2003 5Integration Review B. Schmidt
Muon Filter Installation
Support structure:
-> Moving on rails of ex Delphi end-cap
18 June 2003 6Integration Review B. Schmidt
Muon Filter Installation Precision frame: • The frame will be positioned on concrete blocks • The guides will be precisely adjusted by means of a theodolite (?)• The three filters of one half of the system will be mounted together
Guides
Frame
18 June 2003 7Integration Review B. Schmidt
Sequence:• Iron wall towards the cryogenics is mounted first, then the other
side
Muon Filter Installation
18 June 2003 8Integration Review B. Schmidt
Sequence (cont.):• After the mounting of the walls
– Boardings will be mounted which ensure sufficient seismic stability – plugs around the beam-pipe will be mounted (to reduce the particle
rate)
Muon Filter Installation
Boarding
Plugs
18 June 2003 9Integration Review B. Schmidt
Sequence (cont.):• Filter behind station 5 (MF4) is mounted last, once the cryoline
installation through RB86 is finished and the quay is removed
(August 2004)
->Time constraint forLHCb detector installation
Muon Filter Installation
MF4
18 June 2003 10Integration Review B. Schmidt
Resources:
• Expenses for muon filter installation and tooling are covered by the infrastructure budget
• Work on muon filter installation will be carried out by the LHCb experimental area team between February and September 2004
• It requires 3-4 people (including crane driver) for about 7 months
-> about 120 man weeks
Muon Filter Installation
18 June 2003 11Integration Review B. Schmidt
Work to be done:• Drawings (Pierre Jouvel):
– Design and production drawings for support of MF 4 (1 month)
– Production drawings of tooling for filter construction (3 months)
– Production drawings for the boarding (2 months)
– Design for plugs between filters and beampipe support (2 months)
• Calculations (Joao Batista):– Seismic stability of the Filters (1.5 months)
– Seismic stability of the Support structures (1.5 months)
->Most of this work should be finished by November 2003
-> Schedule is very tight !
Muon Filter Preparation