We will need:
Details below...
TI8 commissioned to the last TED before the LHC in 2008. The additional section between the TED and the LHC septa is relatively simple and will have to be commissioned with beam at the same time as the LHC injection test. The requirements for the transfer line commissioning are well described elsewhere.
The main requirements for the injection test are a stable, well corrected, well matched trajectory with the designated emittance. Orthogonal Steering of injection point will be required. Interlocks/extraction inhibit, from various LHC elements will be required.
Need:
Septa inwards [MR8]
Circuit Name | Magnet Type | Description | Needed? |
RQ5.R8 | MQY | Matching section individually powered Quadrupole | Yes |
RQ4.R8 | MQY | Matching section individually powered Quadrupole | Yes |
RD2.R8 | MBRC | Twin Aperture Separation dipole in IR(188mm). D2 | Yes |
RCBYH5.R8B2 | MCBYH | Horizontal corrector | Yes |
RCBYHS5.R8B2 | MCBYH | Horizontal corrector | Yes |
RCBYVS5.R8B2 | MCBYV | Vertical corrector | Yes |
RCBYV4.R8B2 | MCBYV | Vertical corrector | Yes |
RCBYVS4.R8B2 | MCBYV | Vertical corrector | Yes |
RCBYHS4.R8B2 | MCBYH | Horizontal corrector | Yes |
Inner Triplet right of 8 [XR8]
Circuit Name | Magnet Type(s) | Description | Needed? |
RCBXH1.R8 | MCBXH | Inner triplet dipole corrector, horizontal | Yes |
RCBXH2.R8 | MCBXH | Inner triplet dipole corrector, horizontal | Yes |
RCBXH3.R8 | MCBXH | Inner triplet dipole corrector, horizontal | Yes |
RCBXV1.R8 | MCBXV | Inner triplet dipole corrector, vertical | Yes |
RCBXV2.R8 | MCBXV | Inner triplet dipole corrector, vertical | Yes |
RCBXV3.R8 | MCBXV | Inner triplet dipole corrector, vertical | Yes |
RCOSX3.R8 | Skew Octupole Corrector | No | |
RCOX3.R8 | Octupole Corrector | No | |
RCSSX3.R8 | Skew Sextupole corrector | No | |
RCSX3.R8 | Sextupole corrector | No | |
RCTX3.R8 | Dodecapole Corrector | No | |
RD1.R8 | MBX | Single aperture separation dipole. D1 in IL8 and IR8 | Yes |
RQSX3.R8 | MQSX | Skew quadrupole corrector (a2) in between Q2 and Q3 | Yes |
RQX.R8 | MQXA, MQXB | Inner Triplet (Q1,Q2,Q3 in series) | Yes |
The final vacuum chamber will be in place
Spectrometer magnet compensation elements de-commissioned. Spectrometer magnet off
Foreseen RAMSES monitors in place
RBLWH.R8.SR8 | OFF |
RBXWH.L8.SR8 | OFF |
RBXWSH.L8.SR8 | OFF |
RBXWSH.R8.SR | OFF |
Injection collimators (TCL) are optional.
Instrumentation as planned
Circuit Name | Magnet Type(s) | Type | Needed? |
RCBXH1.L8 | MCBXH | Horizontal corrector | Yes |
RCBXH2.L8 | MCBXH | Horizontal corrector | Yes |
RCBXH3.L8 | MCBXH | Horizontal corrector | Yes |
RCBXV1.L8 | MCBXV | Vertical corrector | Yes |
RCBXV2.L8 | MCBXV | Vertical corrector | Yes |
RCBXV3.L8 | MCBXV | Vertical corrector | Yes |
RCOSX3.L8 | Skew Octupole Corrector | No | |
RCOX3.L8 | Octupole Corrector | No | |
RCSSX3.L8 | Skew Sextupole corrector | No | |
RCSX3.L8 | Sextupole corrector | No | |
RCTX3.L8 | Dodecapole Corrector | No | |
RD1.L8 | MBX | Recombination dipole | Yes |
RQSX3.L8 | MQSX | Skew Quadrupole Corrector | Yes |
RQX.L8 | MQXA, MQXB | Inner Triplet (Q1,Q2,Q3 in series) | Yes |
RCBCHS5.L8B2 | MCBCH | Dipole Corrector in MCBCA(B,C,D), Horizontal | Yes |
RCBCV5.L8B2 | MCBCV | Dipole Corrector in MCBCA(B,C,D), Vertical | Yes |
RCBCVS5.L8B2 | MCBCV | Dipole Corrector in MCBCA(B,C,D), Vertical | Yes |
RCBYH4.L8B2 | MCBYH | Dipole Corrector in MCBYA(B), Horizontal | Yes |
RCBYHS4.L8B2 | MCBYH | Dipole Corrector in MCBYA(B), Horizontal | Yes |
RCBYVS4.L8B2 | MCBYV | Dipole Corrector in MCBYA(B), Vertical | Yes |
RD2.L8 | MBRC | Twin Aperture Separation dipole in IR(188mm). D2 | Yes |
RQ4.L8 | MQY | Matching section individually powered Quadrupole | Yes |
RQ5.L8 | MQM | Quadrupole in the insertions (3.4 m) | Yes |
Dispersion Suppressor: Q8, Q9, Q10, Q11, Q12, Q13 commissioned, powered and cold, plus dipole correctors as listed below.
Circuit Name | Magnet Type | Description | Needed? |
RQ6.L8 | MQM, MQML | Matching section individually powered Quadrupole | Yes |
RQ7.L8 | MQM | Quad | Yes |
RQ8.L8 | MQML | Quad | Yes |
RQ9.L8 | MQM, MQMC | Dispersion suppressor individually powered Quadrupole | Yes |
RQ10.L8 | MQML | Dispersion suppressor quad | Yes |
RQTL11.L8B2 | MQTLI | Dispersion suppressor trim quad | Yes |
RQT12.L8B2 | MQT | Extended D. S. Tuning trim quad | Yes |
RQT13.L8B2 | MQT | Extended D. S. Tuning trim quad | Yes |
RCBCH6.L8B2 | MCBCH | Dipole Corrector in MCBCA(B,C,D), Horizontal | Yes |
RCBCV7.L8B2 | MCBCV | V Corrector | Yes |
RCBCH8.L8B2 | MCBCH | H Corrector | Yes |
RCBCV9.L8B2 | MCBCV | V Corrector | Yes |
RCBCH10.L8B2 | MCBCH | H Corrector | Yes |
Powering: The full complement of magnet circuits is shown in table . Clearly not all of these circuits will be required for the single pass injection test and the potential need for each circuits is indicated in the priority column: 1 is essential, 3 is not needed. Clearly only need beam 1 circuits.
The test is taking place at 450 GeV and the need to push the circuits all the way to top energy will not be required. The effect of cycling the main bends is an option, but the 5 TeV equivalent does not necessarily need to be used as the high point of a magnetic cycle. Clearly the magnets, cryogenics, quench protection system, vacuum system, energy extraction system, interlock systems will have to have been commissioned as planned.
Magnet Type | Number of circuits/Beam 2 | Priority | |
Main bends | MBA/MBB | 1 | 1 |
Lattice quadrupoles | MQ | 2 | 1 |
Skew quadrupoles | MQS | 1 | 1 |
Lattice sextupoles | MS | 4 | 2 |
Skew sextupoles | MSS | 1 | 3 |
Lattice octupoles | MO | 2 | 3 |
Tuning quadrupoles | MQT | 2 | 1 |
Sextupole spool pieces | MCS | 1 | 2 |
Octupole spool pieces | MCO | 1 | 3 |
Decapole spool pieces | MCD | 1 | 3 |
Orbit correctors | MCBV/MCBH | 24 + 23 | 1 |
Class | Type | Circuit |
Main bends | MB | RB.A23 |
Main quads | MQ | RQD.A23 |
Main quads | MQ | RQF.A23 |
Skew quads | MQS | RQS.A23B2 |
Trim quads | MQT | RQTD.A23B2 |
Trim quads | MQT | RQTF.A23B2 |
Sextupoles | MS | RSD1.A23B2 |
Sextupoles | MS | RSD2.A23B2 |
Sextupoles | MS | RSF1.A23B2 |
Sextupoles | MS | RSF2.A23B2 |
Skew sextupoles | MSS | RSS.A23B2 |
Lattice octupoles D | MO | ROD.A23B2 |
Lattice octupoles F | MO | ROF.A23B2 |
b3 spool | MCS | RCS.A23B2. |
Octupole spool | MCO | RCO.A23B2 |
Decapole spool | MCD | RCD.A23B2 |
Circuit Name | Description | Needed? |
RQT13.R7B2 | Yes | |
RQT12.R7B2 | Yes | |
RQTL11.R7B2 | Yes | |
RQTL9.R7B2 | Yes | |
RQTL10.R7B2 | Yes | |
RQTL8.R7B2 | Dispersion suppressor quad [MQTLI] | Yes |
RQTL7.R7B2 | Matching Trim Quadrupole [MQTLI Insertion Region Long Trim Quadrupole Inertia Tube Type] | Yes |
RQ6.R7B2 | Matching cold quadrupole composed of 6 long trim quads in series [MQTLH] | Yes |
RCBCH10.R7B2 | Corrector | Yes |
RCBCV9.R7B2 | Corrector | Yes |
RCBCH8.R7B2 | Corrector | Yes |
RCBCV7.R7B2 | Corrector | Yes |
RCBCH6.R7B2 | Corrector | Yes |
MQTLH -> 4.5 K (nominal: 400 A, 90 T/m) > 4.5 K (nominal: 400
A, 90 T/m)
MQTLI -> 1.9 K (nominal: 550 A, 125 T)
Horizontal Orbit correctors
RCBH12.L8B2
RCBH12.R7B2
RCBH14.L8B2
RCBH14.R7B2
RCBH16.L8B2
RCBH16.R7B2
RCBH18.L8B2
RCBH18.R7B2
RCBH20.L8B2
RCBH20.R7B2
RCBH22.L8B2
RCBH22.R7B2
RCBH24.L8B2
RCBH24.R7B2
RCBH26.L8B2
RCBH26.R7B2
RCBH28.L8B2
RCBH28.R7B2
RCBH30.L8B2
RCBH30.R7B2
RCBH32.L8B2
RCBH32.R7B2
RCBH34.L8B2
Vertical Correctors
RCBV11.L8B2
RCBV11.R7B2
RCBV13.L8B2
RCBV13.R7B2
RCBV15.L8B2
RCBV15.R7B2
RCBV17.L8B2
RCBV17.R7B2
RCBV19.L8B2
RCBV19.R7B2
RCBV21.L8B2
RCBV21.R7B2
RCBV23.L8B2
RCBV23.R7B2
RCBV25.L8B2
RCBV25.R7B2
RCBV27.L8B2
RCBV27.R7B2
RCBV29.L8B2
RCBV29.R7B2
RCBV31.L8B2
RCBV31.R7B2
RCBV33.L8B2
RCBV33.R7B2
Feedboxes and Power interlock controllers
Powering Subsector |
Description |
PIC |
DFB |
A23 |
Arc
7-8 cryostat (right side) + Match. section |
CIPCA.R7 |
|
A23 |
Arc
7-8 cryostat (left side) + Match. section |
CIPCA.L8 |
|
ML8 |
Matching
section in L8 |
CIPCM.L8 |
|
XL8 |
Inner
triplet in L8 |
CIPCX.L8 |
|
XL2 |
Inner
triplet in L2 |
CIPCX.L2 |
|
ML2 |
Matching
sections in L2 |
CIPCM.L2 |
|
plus 3 beam interlock controllers and injection BIC