R. Ostojic CERN, AT Department. 2 LHC Insertions Experimental insertions in points 1, 2, 5, 8...
-
Upload
lorraine-wilkinson -
Category
Documents
-
view
218 -
download
0
Transcript of R. Ostojic CERN, AT Department. 2 LHC Insertions Experimental insertions in points 1, 2, 5, 8...
R. Ostojic
CERN, AT Department
2
LHC Insertions
Experimental insertions in points1, 2, 5, 8 contain low-beta triplets.
In total, eight triplets are installed.
3
The LHC low- triplet
MQXA MQXB MQXAMQXB
6.37 5.5 5.5 6.37
MCBXA MCBXMQSX
TASB
MCBX
Q3 Q2 Q1
MCSOX
DFBXLBX
D1
IR 1 and 5, D1 is a normalconducting dipole.
DFBX
Triplets were designed and built bya collaboration of five laboratories:BNL, CERN, Fermilab, KEK, LBNL.
4
Design and manufacture
• Magnets– MQXA (Q1, Q3) KEK– MQXB (Q2) Fermilab– Correctors CERN– MBX (D1) BNL
• Cryostats– Q1, Q2, Q3 Fermilab– D1 BNL
• DFBX LBNL, Fermilab
• InterconnectsDesign– Q1-Q2, Q2-Q3, Q3-DFBX Fermilab– D1-DFBX BNL, FermilabExecution CERN
• Jacks and tunnel installation CERN
5
Design specifications and documents
• All design specifications and solutions are documented in the functional and interface specifications. These documents were released following collaboration meetings and independent reviews, and after a formal review procedure in the CERN EDMS.(EDMS documents: LHC-LQX-ES%, LHC-DFBX-ES%, LHC-MBX-ES%).
• Acceptance procedures for all magnets and DFBX are defined in appropriate Acceptance Plans, also formally reviewed in CERN EDMS.(EDMS documents: LHC-LQX-TP%, LHC-DFBX-ES-0001, LHC-MBX-ES-0003).
• Safety related procedures and documents were reviewed by competent bodies in participating laboratories following the Memoranda of Understanding.(http://sc-gs.web.cern.ch/sc-gs/gs_ms/TISUS/)
6
Key dates
• Design and development 1998-2002
• Production 2001-05
• Delivery at CERN 2003-07
• First triplet assembly at CERNApril 2005
• First triplet in tunnel (8L) Dec 2005
• Triplet in 8L under vacuum June 2006
• Pressure test of Sector 7-8 (8L) Nov 2006
• Repair of HX in all triplets Feb-May 2007
• Pressure test of triplet in 5L Mar 2007
7
Schematics of the mechanical design
MQXA MQXB MQXAMQXB
Q3 Q2A Q1
DFBX
Q2B
38490
MQXBLBX
D1
External heat exchanger (HX)
Fixed Point HX-Cold Mass
FP Cold Mass-Vacuum Vessel
Fixed Point Triplet-Tunnel Floor
Tie Rods Linking Vacuum Vessels
Jacks (longitudinal)
Internal heat exchanger
For details see dwg. LHCLSX__0001 and LHCLSX__0003.
8
LHC low- triplet – Q2
External heat exchangerGRP spider
MQXB quadrupoles
9
LHC low- triplet – Q1
MQXA quadrupole
End domes and cryo-piping assembled by Fermilab
10
LHC low- triplet – D1
MBX = RHIC dipole
Internal heat exchanger
11
LHC low- triplet – DFBX
12
LHC low- triplet – warm assembly
13
Q1 - Q2 interconnect
14
Q1 - Q2 interconnect
15
Q1 - Q2 interconnect closure
16
Q2 - Q3 interconnects – TAS B
17
Q3 - DFBX
18
DFBX - D1
19
DFBX - D1