SURVEY ACTIVITIES FOR INJECTORS DURING LS1
P. BESTMANT. DOBERS
M. JONES/J.F. FUCHS
D. Missiaen
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IEFC, March 7-9 2012
•Complexe SPS• SPS, TI2, TI8, TT41, TT10, TT20, North area
•Complexe PS• PSR, PSB, transfer lines• L4
Agenda
D. Missiaen
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IEFC, March 7-9 2012
Work presented concerns essentially preventive maintenance/operation of alignment proposed either by : SU when instabilities are well known By OP or ABP for machine improvement
It doesn’t include the alignment requested for installation of new components which is not known yet
Terminology T (tilt) means Transversal inclination (roll angle) of
magnet V means vertical survey H means perpendicular/tranversal to the beam direction
D. Missiaen
Preliminaries
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IEFC, March 7-9 2012
Vertical Survey of the quads (regular yearly activity not done at the last TS) 20% of quads realigned each time
D. Missiaen
SPS ring
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IEFC, March 7-9 2012
SPS in Vertical realignment of the « hole » in sextant 5 and 6
From the passage of the LHC tunnel below SPS Has been realigned several times Request from the OP team
Problems/consequences Beginning of the TT60/TI2 line that has to be corrected
accordingly Many services concerned (VSC, transport, magnet, etc…) Extra work estimated to 2 months for SU only
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SPS ring
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IEFC, March 7-9 2012
in Horizontal Survey of the quads (it has not been done
since 2005) Realignment of dipoles and intermediate
components to be done also
D. Missiaen
SPS ring
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IEFC, March 7-9 2012
Tilt and Vertical of quads done in TS 2011-2012 50% of quads realigned > becoming an
unstable area Proposal for LS1
Quads in V and T : 1.5 month Realign the TT60 if SPS is realigned
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TI2
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IEFC, March 7-9 2012
V survey
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TI2
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IEFC, March 7-9 2012
in H Quads have not been measured since the
first alignment/smoothing in 2006-2007 Proposal for LS1
Remeasure and realign quads Hope mvt will be small and that the others
components will not have to be realigned
D. Missiaen
TI2
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IEFC, March 7-9 2012
in Vertical
D. Missiaen
TI8
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IEFC, March 7-9 2012
TI8 is a very unstable area A tilt and vertical survey is done at each
winter TS Last year 80% of the quads were realigned in
T and V This year H measurements were done at the
bottom of the line > displacements of 2 mm found
Proposal a full survey in T, V and H of all components
not only quads Estimated time : 5 months
D. Missiaen
TI8
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IEFC, March 7-9 2012
TT41 is a also an unstable area V and T survey done for some portions in
2010 and 2011 upon OP request > misalignments of 2mm found and corrected
H survey done on five half cells in 2012 misalignments of 2mm found and corrected
Proposal for LS1 : Nothing up to now
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CNGS
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IEFC, March 7-9 2012
TT10 T+V+R survey done in 2007-2008 > significant
improvement of the beam Proposal for LS1 : Redo the same operation 3 months
TT20 Survey in T + V for some quads done in 2008-2009 Proposal for LS1 : full survey of all the components
but with a low priority 3 months
D. Missiaen
SPS transfer lines
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IEFC, March 7-9 2012
Last Survey of main magnets in T, V and H in 2005
Proposal for LS1 : as requested by ABP and OP to redo full survey D.
Missiaen
PS Ring
PSR - altimétrie - Courbes lisse "rabot" et résultat LGC
-4
-3
-2
-1
0
1
2
3
PRB
HZ
1
E
PRB
HZ
5
E
PRB
HZ
9
E
PRB
HZ
1
3E
PRB
HZ
1
7E
PRB
HZ
2
1E
PRB
HZ
2
5E
PRB
HZ
2
9E
PRB
HZ
3
3E
PRB
HZ
3
7E
PRB
HZ
4
1E
PRB
HZ
4
5E
PRB
HZ
4
9E
PRB
HZ
5
3E
PRB
HZ
5
7E
PRB
HZ
6
1E
PRB
HZ
6
5E
PRB
HZ
6
9E
PRB
HZ
7
3E
PRB
HZ
7
7E
PRB
HZ
8
1E
PRB
HZ
8
5E
PRB
HZ
8
9E
PRB
HZ
9
3E
PRB
HZ
9
7E
aimants principaux
dV (m
m)
position lisseresultat du calcul
PSR - planimétrie- Courbe lisse "rabot" et résultat LGC
-4
-3
-2
-1
0
1
2
PRB
HZ
1
E
PRB
HZ
5
E
PRB
HZ
9
E
PRB
HZ
1
3E
PRB
HZ
1
7E
PRB
HZ
2
1E
PRB
HZ
2
5E
PRB
HZ
2
9E
PRB
HZ
3
3E
PRB
HZ
3
7E
PRB
HZ
4
1E
PRB
HZ
4
5E
PRB
HZ
4
9E
PRB
HZ
5
3E
PRB
HZ
5
7E
PRB
HZ
6
1E
PRB
HZ
6
5E
PRB
HZ
6
9E
PRB
HZ
7
3E
PRB
HZ
7
7E
PRB
HZ
8
1E
PRB
HZ
8
5E
PRB
HZ
8
9E
PRB
HZ
9
3E
PRB
HZ
9
7E
aimants principaux
dR (m
m)
position lisserésultat des mesures
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IEFC, March 7-9 2012
Last Survey in T, V and H in 2008
Proposal for LS1 : as requested by OP, measurement and realignment of quads and dipoles D.
Missiaen
PS Booster
0 20 40 60 80 100 120 140 160
-3
-1
1
3
PSB - vertical offsets 2008 - beam level (R3)
Cumulated distance (m)dV (m
m)
0 20 40 60 80 100 120 140 160
-3-2-10123 PSB - radial offsets 2008 - beam level (R3)
Cumulated distance (m)
dR (
mm
)
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IEFC, March 7-9 2012
TT2/FT16 Survey in T, V and H of the quads
BTM, BTY, BT, BI and FTA Survey and alignment of all components BI will be done in the frame of the LIU project
D. Missiaen
PS transfer lines
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IEFC, March 7-9 2012
Linac4 : Important delay
For manufacturing of components For installation : supporting jacks will not be
there before september Fiducialisation and alignment will place in
2013 and 2014 which was not expected Fiducialisation Alignment
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Linac4
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IEFC, March 7-9 2012
20 Targets for TDC2 to prepare and fiducialise on the surface
Non-LHC Experiments areas Isolde/AD areas/PS areas SPS areas H2-H8/Na62 CAST 20 months/ 1 team
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Other areas
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IEFC, March 7-9 2012
Most of the field work is done by a Manpower contract under the supervision of CERN staff Contract people can be increased rather
easily Preparation , Supervision, Coordination,
data post processing, quality checks are done by CERN staff
SU would like to do the major part of the injector works in 2013 because of heavy work load in LHC from sept 2013 to mid 2014
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Manpower/Planning
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IEFC, March 7-9 2012 D. Missiaen
Time estimationAccel/Transfer line
Operation Time (months)/team
when
SPS Quads T + V 1.5 2013Quads H 2 2013Other components in T,V and H 5 2013Realignment of Sext 5 and 6 (extra time)
2 2013
TI2 Quads in T, V and H 2.5 2013TI8 All components in V, T and H 5 2014TT10 Quads in T, V and H 3 2014TT20 Quads in T, V and H (if time
available)3 2013
Total of 24 months Manpower : 4 FTE over 15 months/supervision by staff will be a
bit difficult
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IEFC, March 7-9 2012 D. Missiaen
Time estimateAccel/Transfer line
Operation Time (months)/team
When
PSR Main magnets 2.5 2014
PSB Quads and dipoles 2 2013
BTM, BTY
All components 2 2013
BI, BT, FTA
All components 2 2013
TT2 Quads in T, V and H 1 2013
Linac4 First alignment and smoothing of all components
8 20132014
Metrology and fiducialisation 8 2013 2014
Total of 9.5 months for CPS For L4 the problem will be the supervision of the contract team
1 person to be allocated at 100% during this period
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IEFC, March 7-9 2012
Huge amount of work to be done during LS1 It should be possible to include all the activities
with the 15months of shut-down from the planning point of view
Decision has to be taken on the realignment of sext5-6 of SPS
L4 delay of component readyness is not favorable at all for SU 1 person missing to supervise the contract team
for L4 because of heavy work load The survey of the injectors is only a piece of
the puzzle for LS1D. Missiaen
Conclusions