Welcome to the LHCb Alignment Web Page

Alignment Subtasks

Tools for Alignment

How To:

Data sets

LHCb Tracking & Alignment Workshops and Other Relevant Meetings

LHC Detector Alignment Workshops


Publications, public notes

  • J. Amoraal, "Alignment of the LHCb detector with Kalman filter fitted tracks." LHCb-CONF-2009-026; CERN-LHCb-CONF-2009-026

  • M. Deissenroth, "Experience with LHCb alignment software on first data" LHCb-CONF-2009-009; CERN-LHCb-CONF-2009-009

  • A. Hicheur, M. Needham, L. Nicolas, , J. Amoraal, W. Hulsbergen, G. Raven, , "First studies of T-station alignment with simulated data.", CERN-LHCB-2008-065, Mar 2009. 35pp.

  • L. Nicolas, A. Hicheur, M. Needham, J. Amoraal, W. Hulsbergen, G. Raven, "Alignment of LHCb tracking stations with tracks fitted with a Kalman filter", CERN-LHCB-2008-066, LPHE-2008-14, Dec 2008. 6pp.

  • W. Hulsbergen, "The Global covariance matrix of tracks fitted with a Kalman filter and an application in detector alignment.", Nucl.Instrum.Meth.A600:471-477,2009. [doi:10.1016/j.nima.2008.11.094 ], arXiv:0810.2241 [physics.ins-det]

  • S. Viret, C. Parkes, M. Gersabeck, "Alignment procedure of the LHCb Vertex Detector", Nucl. Instr. and Meth. A596 (2008) 157-163, doi:10.1016/j.nima.2008.07.153 [arXiv:0807.5067]

  • M. Gersabeck et al., "Performance of the LHCb Vertex Detector Alignment Algorithm determined with Beam Test Data", Nucl. Instr. and Meth. A596 (2008) 164-171, doi:10.1016/j.nima.2008.07.154 [arXiv:0807.5069]

Recent LHCb notes

Subset of relevant non-lhcb references

Hardware Alignment Systems

Alignment Working Week Tests

* Data used: minimum bias on beam-gas events at 450GeV,
  • reconstructed with tag DC06-repro0710: /castor/cern.ch/user/j/jblouw/FieldOff_450GeV.dst
  • reconstructed with tag AW2_IT_OT_01 : castor/cern.ch/user/j/jblouw/FieldOff_450GeV_AW2_IT_OT_01.dst
* Tags in the conditions dbase (/castor/cern.ch/user/j/jblouw/LHCBCOND.db) with shifts/rotations of layers:
Det dbase-tag Tx Ty Tz Rx Ry Rz
OT AW2_IT_OT_01 1.0mm 1.0mm fixed fixed 0.4mrad 0.4mrad
IT AW2_IT_OT_01 0.1mm 0.1mm fixed fixed 0.1mrad 0.1mrad
OT AW2_OT_IT_03 1.0mm fixed fixed fixed 0.4mrad 0.4mrad
IT AW2_OT_IT_03 0.1mm fixed fixed fixed 1.0mrad 1.0mrad
OT AW2_OT_IT_04 1.0mm fixed 1.0mm 0.4mrad fixed 0.4mrad
IT AW2_OT_IT_04 0.1mm fixed fixed 1.0mrad fixed 1.0mrad
Note that for all cases, the first 2 and last 2 layers have not been shifted/rotated.

-- StevenBlusk - 13 Nov 2006

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Topic revision: r35 - 2010-07-26 - NicolaChiapolini
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