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

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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

13.01.05 PS/SPS days 9

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.