Collimation Working Group #127

Collimator Alignment Control IR 7 and 3

Patrick Bestmann 06/06/2011

Overview

1 •Introduction

2 •Status

3 •IR7 & IR3

4 •Planning

Control of the Collimator alignment

The alignment of the collimators will be controlled using a dedicated survey train.

Strategy is the same as for the initial alignment (local smooting between quadrupoles)

Regular control measurements Control of the alignment after exchange of a collimator The alignment deviations can be given to the

collimator operation.

Sensor unit

Control unit

Battery unit

Traction unit

Digital close range photogrammetry Fast and non contact measurement of the

activated collimators Wire offset measurements to detect train position

and link the different aquisition volumes. Reliable reference over long distances

Concept

Quad Quad

Collimators

Survey train The train is based on a combination of close range photogrammetry

and streched wire measurements All collimators in IR7 are equipped with additional photogrammetric

targets (350) 5 Overlapping wires are installed along the LSS7 as straight reference

for the train

Operation sequence Installation in IR7 (uptream of MCBWV_4R7) Startup and calibration check Visual control of wires and weights Start of Sequencer

Autonomous movements and aquisition Online calculation and results in situ Stability tests and aquisition ≈ 100 sec.

Operation Video

Operation Video

Benchmark Test Real size mock-up in 927 Two collimators and 5 reference magnets Setup is measured with a Laser Tracker as

reference coordinates for benchmark test Fully independend measurements even with

different targets. Precision of reference measurements

0.15mm

Test mock-up

LGC ResidualsPOINT 1 POINT 2 POINT 3 OBSERVE SIGMA CALCULE RESIDU RES (M) (MM) (M) (MM) /SIG LHC____GISP_____6L7_ LHC____MQWA____B6L7S LHC____GISP_____4L7_ 0.47469 0.10 0.47468 -0.00 -0.02 LHC____GISP_____6L7_ LHC____MQWA____B6L7E LHC____GISP_____4L7_ 0.64842 0.10 0.64842 0.00 0.05 LHC____GISP_____6L7_ LHC____TCP_____E6L7C LHC____GISP_____4L7_ 0.91386 0.10 0.91377 -0.09 -0.92 LHC____GISP_____6L7_ LHC____TCP_____E6L7F LHC____GISP_____4L7_ 0.82393 0.10 0.82388 -0.05 -0.52 LHC____GISP_____6L7_ LHC____TCP_____E6L7G LHC____GISP_____4L7_ 0.71828 0.10 0.71826 -0.03 -0.27LHC____GISP_____6L7_ LHC____TCP_____E6L7H LHC____GISP_____4L7_ 0.82279 0.10 0.82278 -0.01 -0.13LHC____GISP_____6L7_ LHC____TCP_____E6L7D LHC____GISP_____4L7_ 0.91261 0.10 0.91263 0.02 0.22LHC____GISP_____6L7_ LHC.B2_TCSG_____6L7C LHC____GISP_____4L7_ 0.19867 0.10 0.19864 -0.03 -0.28 LHC____GISP_____6L7_ LHC.B2_TCSG_____6L7F LHC____GISP_____4L7_ 0.28869 0.10 0.28866 -0.03 -0.30 LHC____GISP_____6L7_ LHC.B2_TCSG_____6L7G LHC____GISP_____4L7_ 0.39342 0.10 0.39339 -0.02 -0.24LHC____GISP_____6L7_ LHC.B2_TCSG_____6L7H LHC____GISP_____4L7_ 0.28817 0.10 0.28815 -0.02 -0.22LHC____GISP_____6L7_ LHC.B2_TCSG_____6L7D LHC____GISP_____4L7_ 0.19825 0.10 0.19824 -0.02 -0.16LHC____GISP_____6L7_ LHC____MQWA____A5L7E LHC____GISP_____4L7_ 0.57857 0.10 0.57859 0.02 0.17 LHC____GISP_____6L7_ LHC____MQWA____B5L7E LHC____GISP_____4L7_ 0.28824 0.10 0.28825 0.01 0.09 LHC____GISP_____6L7_ LHC____MQWA____B5L7S LHC____GISP_____4L7_ 0.28894 0.10 0.28895 0.01 0.09 LHC____GISP_____6L7_ LHC____MQWA____C5L7E LHC____GISP_____4L7_ 0.28822 0.10 0.28822 0.01 0.09LHC____GISP_____6L7_ LHC____MQWA____B6L7S LHC____GISP_____4L7_ 0.47468 0.10 0.47468 0.00 0.02 LHC____GISP_____6L7_ LHC____MQWA____B6L7E LHC____GISP_____4L7_ 0.64843 0.10 0.64842 -0.01 -0.05 LHC____GISP_____6L7_ LHC.B2_TCSG_____6L7C LHC____GISP_____4L7_ 0.19860 0.10 0.19864 0.04 0.35 LHC____GISP_____6L7_ LHC.B2_TCSG_____6L7F LHC____GISP_____4L7_ 0.28863 0.10 0.28866 0.03 0.28 LHC____GISP_____6L7_ LHC.B2_TCSG_____6L7G LHC____GISP_____4L7_ 0.39337 0.10 0.39339 0.02 0.21LHC____GISP_____6L7_ LHC.B2_TCSG_____6L7H LHC____GISP_____4L7_ 0.28812 0.10 0.28815 0.03 0.26LHC____GISP_____6L7_ LHC.B2_TCSG_____6L7D LHC____GISP_____4L7_ 0.19823 0.10 0.19824 0.01 0.10LHC____GISP_____6L7_ LHC____MQWA____A5L7E LHC____GISP_____4L7_ 0.57861 0.10 0.57859 -0.02 -0.17 LHC____GISP_____6L7_ LHC____MQWA____B5L7E LHC____GISP_____4L7_ 0.28826 0.10 0.28825 -0.01 -0.08 LHC____GISP_____6L7_ LHC____MQWA____B5L7S LHC____GISP_____4L7_ 0.28896 0.10 0.28895 -0.01 -0.09 LHC____GISP_____6L7_ LHC____MQWA____C5L7E LHC____GISP_____4L7_ 0.28823 0.10 0.28822 -0.01 -0.09

RESIDU MOYEN = -0.00 MM : LIMITES DE CONFIANCE A 95.0 = (-0.01, 0.01) ECART-TYPE = 0.03 MM : LIMITES DE CONFIANCE A 95.0 = (0.03, 0.04)

Test Results: Comparison to theory SIGMA ZERO A POSTERIORI = 0.18061 , VALEUR CRITIQUE = (0.66705, 1.33264)

POINT X Y Z ID DX DY DZ DCUM OPTION

LHC____MQWA____B6L7S 0.07463 2.67950 0.55230 -1 0.0 0.0 0.0 -1.00000 CALA

LHC____MQWA____C5L7E 0.26494 24.56889 0.54781 -1 0.0 0.0 0.0 -1.00000 CALA

LHC____MQWA____B5L7S 0.26327 19.17045 0.54864 -1 -0.14 0.00 0.0 -1.00000 VXY

LHC____MQWA____B5L7E 0.26302 13.77049 0.54904 -1 -0.21 0.00 0.0 -1.00000 VXY

LHC____MQWA____A5L7E -0.02799 9.90808 0.42778 -1 -0.25 0.00 0.0 -1.00000 VXY

LHC.B2_TCSG_____6L7D 0.35188 7.31930 0.28024 -1 -0.25 0.11 0.0 -1.00000 VXY

LHC.B2_TCSG_____6L7H 0.26196 7.31948 0.28246 -1 0.02 -0.03 0.0 -1.00000 VXY

LHC.B2_TCSG_____6L7G 0.15668 7.11967 0.28642 -1 -0.18 0.01 0.0 -1.00000 VXY

LHC.B2_TCSG_____6L7F 0.26137 6.91947 0.28479 -1 -0.06 0.03 0.0 -1.00000 VXY

LHC.B2_TCSG_____6L7C 0.35139 6.91931 0.28254 -1 0.01 0.05 0.0 -1.00000 VXY

LHC____TCP_____E6L7D -0.36292 4.93016 0.28785 -1 0.22 0.01 0.0 -1.00000 VXY

LHC____TCP_____E6L7H -0.27306 4.93041 0.28767 -1 0.04 -0.02 0.0 -1.00000 VXY

LHC____TCP_____E6L7G -0.16854 5.13067 0.28748 -1 -0.03 0.02 0.0 -1.00000 VXY

LHC____TCP_____E6L7F -0.27414 5.33040 0.28784 -1 -0.21 -0.00 0.0 -1.00000 VXY

LHC____TCP_____E6L7C -0.36409 5.33016 0.28809 -1 -0.16 -0.01 0.0 -1.00000 VXY

LHC____MQWA____B6L7E -0.09897 3.44002 0.54708 -1 0.00 0.00 0.0 -1.00000 VXY

LHC____GISP_____6L7_ 0.54885 -0.00020 0.70000 -1 -1.15 -0.20 0.0 -1.00000 VXY

LHC____GISP_____4L7_ 0.55471 33.41672 0.66808 -1 4.71 -0.15 0.0 -1.00000 VXY

Test conclusion System repeatability is below 0.1mm Comparison to theory contains the uncertainty of

the LTD measurements and the mechanical precision of the exchanged targets.

Precision is 0.2mm and already within specs but some optimisation margin can still be used

TIM Security Some security issues to adress

Some known issues from Tim 30*30 TIM security rules with personell in place Access restricted to team members Airflow must be minimized (extraction point of

sector 6-7 and 7-8) Working on more advanced mobile control

panel

Status

Sensorsystems are running All Subroutines are running Calculation routines beeing finalized Tunnelinstallation IR 7 completed

5 overlapping wires 10 pillars 2x 111 m, 2x 85 m,1x 146 m 350 Optical targets in place and

measured IR 3 in preparation

To do list

Finalising Hardware configuration Housing, wireing

Transfer from PC to PXI More powerful and less consuming

Adding Mobile Control Panel Tests for full system validation ongoing Ready for winter stop 2011/2012 Preparation for IR 3 Installation in long shutdown

Planning 09/11 Hardware finished

Programm transferred to PXI 10/11 Full validation in mock-up

Including all possible configurations 11/11 Documentation and Procedures

(Installation, Calibration, Operation, RP, Safety) 01/12 Installation and measurements in IR7 for 3 days

(night shift)Manual measurements of LSS 7

Continious optimisation and developments with core team (C. Charrondiere, T. Feniet, P. Bestmann) and assignment of alternate specialists.