RRB Plenary Meeting , CERN 22 October 2007
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RRB Plenary Meeting, CERN 22 October 2007 LHC Status Report Lyn Evans
description
Lyn Evans. LHC Status Report. RRB Plenary Meeting , CERN 22 October 2007. Q1.R8. Q3-Q2.8L interconnect after in situ repair. Descent of the last magnet, 26 April 2007. 30’000 km underground at 2 km/h!. Magnet interconnections. Cooldown of Sector 7-8. - PowerPoint PPT Presentation
Transcript of RRB Plenary Meeting , CERN 22 October 2007
RRB Plenary Meeting, CERN 22 October 2007
LHC Status Report Lyn Evans
L. Evans – EDMS Document 874936 2
Q1.R8
L. Evans – EDMS Document 874936 3
Q3-Q2.8L interconnect after in situ repair
L. Evans – EDMS Document 874936 4
Descent of the last magnet, 26 April 2007
30’000 km underground at 2 km/h!
L. Evans – EDMS Document 874936 5
Magnet interconnections
L. Evans – EDMS Document 874936 6
Cooldown of Sector 7-8
From RT to 80K precooling with LN2. 1200 tons of LN2 (64 trucks of 20 tons). Three weeks for the first sector.
From 80K to 4.5K. Cooldown with refrigerator. Three weeks for the first sector. 4700 tons of material to be cooled.
From 4.5K to 1.9K. Cold compressors at 15 mbar. Four days for the first sector.
L. Evans – EDMS Document 874936 7
Sector 7-8 cooldown
L. Evans – EDMS Document 874936 8
Courtesy F.Bordry
L. Evans – EDMS Document 874936 9
Tracking between the three main circuits of sector 78
Courtesy F.Bordry
2ppm
L. Evans – EDMS Document 874936 10
Cooldown until Saturday 14-7-7 - Cooldown speed
Avg. Cold Mass Temperature
140
160
180
200
220
240
260
280
300
7/5/076:00
7/6/076:00
7/7/076:00
7/8/076:00
7/9/076:00
7/10/076:00
7/11/076:00
7/12/076:00
7/13/076:00
7/14/076:00
7/15/076:00
7/16/076:00
7/17/076:00
7/18/076:00
7/19/076:00
Date
T c
m [
K]
planned [K] measured [K] data S7-8 [K]
L. Evans – EDMS Document 874936 11
Sector 4-5 cooldown
L. Evans – EDMS Document 874936 12
RF cavities
L. Evans – EDMS Document 874936 13
Two 300 kW klystrons with circulators and loads
L. Evans – EDMS Document 874936 14
Updated General Schedule – 08.10.07
Pressure test Cool-down Powering tests
Sector 12 wk. 49 (2007) wk. 07 (2008) wk. 12 (2008) wk. 13 (2008) wk. 25 (2008)
Sector 23 wk. 44 (2007) wk. 05 (2007) wk. 10 (2008) wk. 11 (2008) wk. 22 (2008)
Sector 34 Done wk. 11(2008) wk. 16 (2008) wk. 17 (2008) wk. 25 (2008)
Sector 45 DoneStarted wk. 46 (2007) wk. 47 (2007) wk. 03 (2008)
wk. 16 (2008) wk. 19 (2008) wk. 20 (2008) wk. 26 (2008)
Sector 56 Done wk. 46 (2007) wk. 07 (2008) wk. 08 (2008) wk. 19 (2008)
Sector 67 Done wk. 48 (2007) wk. 08 (2008) wk. 09 (2008) wk. 17 (2008)
Sector 78Done Done Done Done Done
Done wk. 48 (2007) wk. 04 (2007) wk. 05 (2007) wk. 16 (2008)
Sector 81 Done wk. 50 (2007) wk. 06 (2008) wk. 07 (2008) wk. 19 (2008)
L. Evans – EDMS Document 874936 15
Updated General Schedule – 08.10.07
.
.
2007
2008
2007
2008
12 23 34 45 56 67 78 81
Machine Checkout
Beam Commissioning to 7 TeV
Consolidation
1011121314151617
1918
2021222324252627
2928
3031323334353637
3938
4041424344454647
4948
5051520102030405
0706
08091011121314151617
1918
2021222324252627
2928
3031323334353637
3938
4041424344454647
4948
505152
1011121314151617
1918
2021222324252627
2928
3031323334353637
3938
4041424344454647
4948
5051520102030405
0706
08091011121314151617
1918
2021222324252627
2928
3031323334353637
3938
4041424344454647
4948
505152
1011121314151617
1918
2021222324252627
2928
3031323334353637
3938
4041424344454647
4948
5051520102030405
0706
08091011121314151617
1918
2021222324252627
2928
3031323334353637
3938
4041424344454647
4948
505152
Interconnection of the continuous cryostat
Leak tests of the last sub-sectors
Inner Triplets repairs & interconnections
Global pressure test &Consolidation
Flushing
Cool-down
Warm up
Powering Tests
Global pressure test &Consolidation
Cool-down
Powering Tests
General schedule Baseline rev. 4.0
