PS/SPS Days Roberto Losito/Oliver Aberle
13th January 2004
How to get reliable PSB sieve and PS&SPS
dumps for 2006?
13.01.05 PS/SPS days 2
Overview
Internal dumps Sieve Beam stoppers TIDVG Summary
13.01.05 PS/SPS days 3
PS internal dumps
Installed dump 47 operational (control unit problems)
Dump 48 mechanically ok Spare in radioactive storage,
control problem? Transportation problem
solved, lifting device will be tested these days
Working space (bunker, INB) found by R. Brown, ready within 3 weeks
13.01.05 PS/SPS days 4
PS internal dumps
Dump 48 mechanically updated Water bellows to be changed Water and electrical connectors
to replace Cabling to be replaced Power supply to be changed Check capturing magnet Test intensively Standardise control units Reference dump
13.01.05 PS/SPS days 5
PS internal dumps Installed dump 47 stays Installation of dump 48 Upgrading of spare dump Depending on schedule start
up with dump 47 or replacement of dump 47 by spare dump
Upgrading of dump 47 New supports to simplify the
alignment procedure
13.01.05 PS/SPS days 6
PS Sieve
Working since 1977 Originally designed for 1 mio.
cycles, which has been reached in 1981
Material Graphite Movement with air pistons Water cooled Not working reliably No spare parts!
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PS Sieve
Short term (2005): Demount sieve from the
machine Maintenance on
mechanical parts(Piston, water and air connections, bearings)
Adjust air and waterpressure after lab tests
Reinstall sieve
13.01.05 PS/SPS days 8
PS Sieve
Long term (2006/2007): Prepare two additional units with
small design changes Re-use vacuum tank or build new
modified vacuum tanks? Replace Graphite with CFC Replace sieve actually installed Prepare one complete spare unit
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PS beam stoppers
33 stopper in the PS complex Different types Stoppers in good general
condition Take stock of spare
components Annual maintenance of
installed stoppers
13.01.05 PS/SPS days 10
SPS TIDVG
Internal beam dump Length 4.5m C / Cu / Al / W core 22 tons cast iron shielding water cooled vacuum temp. measurement vertical deflection
13.01.05 PS/SPS days 11
SPS TIDVG
Ti foils to prevent from C particle contamination
Ti foil stretched over dump core materials
5 foils with overlap, not closed
Each foil end is lifted
13.01.05 PS/SPS days 12
SPS TIDVG
Damaged Ti foil Length of damage:
30 mm Height of foil displacement:
10 mm Position: End of first foil/
circulating beam
13.01.05 PS/SPS days 13
SPS TIDVG
Proposed modification: Tests on graphite blocks covered by Ti foil (10-15mm
from the edge). If successful remove all Ti foils by cutting with special tool on
spare TIDVG. Same intervention on spare core Modify the spare cast ion body of the TED to get a full
spare TIDVG Store the damaged TIDVG as back up Installation of modified dump in April 2005
13.01.05 PS/SPS days 14
Summary
PS Dumps: Two upgraded dumps ready for startup 2006, spare in stand by.
PS sieve: 3 month to maintain the existing sieve, construction of a spare on the same design principle (in 2006).
PS beam stoppers: Inventory and annual maintenance, spare stoppers for 2006/07.
TIDVG: “Light” solution for time, manpower and budget reasons. Reinstallation within 3 months. Preparation of spare 2007.