Post on 23-Dec-2015
Saverio MINUTOLI TIG meeting, 10 February 2011 1
Report on T1 installation activities and achievements made during this shutdown
Saverio MINUTOLI
T1 minus side
Minus side prepared for installation during Christmas
Installed on 10th January 2011
2 quarters moved from H8 to IP5 on 16th Dec. 2010 Moved to –HF platform on 2 risers, in the next days Preliminary mechanical test Temporary connections to the services
– DAQ, LV, HV, DCS, DSS, Gas, Cooling
DAQ Readout and Slow Control test Water leak detection cable installed.
3TIG meeting, 10 February 2011
Saverio MINUTOLI
T1 minus side
Insertion of the two quarters, one by one– CSC and BP clearances verification and adjustment– Frames and CMS envelope clearances verification and adj.– Truss position checked and aligned after survey.
Both quarters inserted into CMS endcaps No interference of T1 on the alignement lasers Gas and cooling connections Cabling and grounding with final cables. DAQ Readout and Slow Control test Cabling off - HF platform moved to 4 risers Final cabling and readout test
4TIG meeting, 10 February 2011
Saverio MINUTOLI
5th layer 4th layer 3rd layer
1st layer
Clearances between T1 CSC and BP on CMS minus side (mm)
- actual size
2nd layer
24
30
32
26
26
25
26
25
22
mm
26
23
26
28
27
22
near far
27
31
28
27
28
27
26
25
26
25
26
27
28
27
26
Saverio MINUTOLI
T1 plus side
Installed on 17th January 2011
Same procedures than the Minus side.
9TIG meeting, 10 February 2011
Saverio MINUTOLI
5th layer 4th layer 3rd layer
1st layer
Clearances between T1 CSC and BP on CMS plus side ( in mm) NEAR
2nd layer
mm
near far
23
35
35
Picture from the minus sideMeasurement done by Roman.
26
35
32
22
27
32
25
27
28
21
27
29
23/24
26
26
20
27
29
23
26
27
20
27
29
24
27
26
-First closing test-Without shimming
mm
-Second closing-After shimming
Saverio MINUTOLI
5th layer 4th layer 3rd layer
1st layer
Clearances between T1 CSC and BP on CMS plus side ( in mm) FAR
2nd layer
mm
near far
26
33
33
Picture from the minus sideMeasurement done by Roman.
28
29
29
26
30
26
26
29
32
28
29
29
26
28
26
24
28
30
27
28
27
26
26
26
24
28
30
26
28
28
26
26
26
26
29
29
28
28
27
26
26
26
-closing value-Closing test without
mm
- theoretical valueDmitry
mm
- actual size for the 5th layer the others layerstheoretical value of Roman
Saverio MINUTOLI
DSS LV OPFCs test
14
Each T1 quarter is powered independently.
4 electro-mechanic breakers installed
Tested and deployed within DSS. Electrical drawing updated OPFCs AC input and DC output
tested 385V DC connections tested on
both sides (rack and platform).
TIG meeting, 10 February 2011
Saverio MINUTOLI
T1 services rack on HF platform
15
4 minirack installed on HF platform Safety smoke detector and Thermostat installed and
tested (DSS) All cables from the Counting Room traced and tested Cooling circuit tested on –side, +side.
TIG meeting, 10 February 2011
Saverio MINUTOLI
¼ T1 DCS and DSS systems
16
DCS system
3 PT100 temperature sensors installed and checked
2 on electronic boards and 1 on cooling plate
2 active Radiation Monitor sensors installed and checked
1 on 1st plane internal and 1 on 5th plane external
On the adjacent quarter the RadMon sensors are
located on the same plane but opposite sides.
DSS system
2 PT100 temperature sensors installed and checked
2 on electronic boards.
2 passive Radiation Monitor sensors installed
TIG meeting, 10 February 2011
Saverio MINUTOLI 17
12
34
5
5
5
4
4
3
3
2
21
1
T
T
T
M
M
M
BB
B
= CSC
= ROC
ROCs 45
ROCs 23
ROCs 01
= IP5
6th frame
DOHM
= DOHM
C
C
C
C
C
C
C
C
CC
CC
C
C C
= CFEC
¼ T1 + Near (Yellow) _ Passive and Active RADMONs position
PRM006(IP-Side)
PRM004(~IP-Side)
RM 82(IP-Side)
RM 84(~IP-Side)
TIG meeting, 10 February 2011
Saverio MINUTOLI 18
12
34
5
5
5
4
4
3
3
2
21
1
0x78
0x7E
0x77
0x790x
76
0x7D
0x7A0x7B
0x7C
= CSC
= ROC
ROCs 45
ROCs 23
ROCs 01
= IP5
6th frame
DOHM
= DOHM= SCR cable
Slow Control Ring system
SCR distributes Fast Command (L1, BC0, Calib, Reset) and LHC clock
Manage the F.E. settings through 16 I2C channels.
DOHM independent LV channel
Redundancy connection checked
All the ¼ T1 quarters passed the SCR tests.TIG meeting, 10 February 2011
Saverio MINUTOLI
Joint test CMS and TOTEM (T1 and T2)
19TIG meeting, 10 February 2011
tested only T1 (10 Jan 2011) with CMS CSC ON, without problem
tested T1 and T2 (3-4 Feb 2011) with almost all CMS apparatus ON, without problem.
– PIX, TK, ES (Preshower): out– RPC masked some towers in the trigger (to keep the rate within reason)– ECAL masked one trigger tower (ditto)– CASTOR HV OFF (due to miscommunication and sorted out later) and ON
later
Saverio MINUTOLI
Effect of B on T1 position
Position checks during ramp to 3.8T
Small (order 1mm total) movements recorded on sensors“axial”(YE2 vs YE3) and “radial”(detectors vs vacuum chamber).
Very good correlation and +/- symmetry of displacements indicates that variation is due to the deformation of the end caps with B.
TIG meeting, 10 February 2011