Etichette dei cavi dei servizi C.Luci Sistema di allineamento Etichettatura dei cavi Proposta di passaggio dei cavi

RASNIK SYSTEM - The RASNIK system consists of : Rasled (IR led+mask), lens, Rascam (CMOS camera) + DAQ (Icaras) RASLED RASCAM

BARREL ALIGNMENT Inplane system : Monitoring of MDT chamber deformation The BIM-BIR connections (Precision < 30 m) Praxial System (Proximity + axial) : Link MDT chambers of a given layer (Precision < 30 m) Projective system: Link the 3 layers of large MDT chambers (BIL,BML,BOL) for sagitta correction (Precision < 30 m) The reference system for absolute position (Precision < 0.5 mm) Projective lines (RASNIK) Axial lines (RASNIK)

Alignment at H8 H8: 3D view H8: top view 3 Atlas : 4 projective rays in the half-barrel H8 : special situation with 6 projective rays on two towers up to 4 proj. platforms on chambers H8: praxial + inplane Atlas: standard sector BIL BML BOL BIL BML BOL ~ 0

Projective platforms BIL Roma BML (Led) Lente CCD sulle BOL

BOL BML CCD Lente Led BILBIL0 Non ci sara

Inplane X Y Sistema di riferimento dei CCD CCD 0 Crossplates Long beam LED+masks Image sensor Lenses 1234 CCD 1 η= 0 HV RO 4 cavi LED 2 cavi CCD X Y X Y Ccd 0Ccd 1 BIL

Praxial: Goals & Requirements * ** z x y * Along wires: second order effect on sagitta computation ** Higher accuracy obtained with 2 adjacent systems Remarks The praxial system is used to unite a layer of chambers fo form a single rigid layer Proximity system Axial system Required accuracy on proximity

Praxial System ccd led lens Ccd axial led axial No precision for the positioning of optical elements A calibration is needed 2 cavi ccd 1 cavo led 1 cavo ccd 2 cavi led Axial rays

BIL Praxial pictures Roma Pavia lens led Axial lens Cavi schermati per i ccd Problema per far passare tutti i cavi senza disturbare le linee ottiche piattaforma Axial rays

Praxial in the BML Sulla BML e BOL la piattaforma e incollata su ML1 Cavi !!! (n.b. la foto e relativa ad una BOL)

z Image sensor Lens LED-Mask BIL-BIS Standard sectors (e.g. sectors 1-2) HV side Side A BIS6BIS5 BIS4 BIS3 BIS7 BIS8 BIS1 BIS2 RO side HV side projective BIL6 BIL5 BIL4 BIL3 Reference system projective BIL-BIS connection RO side BIL1 BIL2 Projective platform B-sensor platforms 15/05/2002

z Image sensor Lens LED-Mask BML-BMS Standard sector (e.g. sectors 1-2) BMS6 BMS5 BMS4 BMS3 BMS1 BMS2 projective BML6 BML5 BML4 BML3 BML2 Reference system BML-BMS connection BML1 HV side Side A RO side HV side RO side Projective platform B-sensor platforms cutouts BML-BMS connection 15/05/2002

Axial system in H8 BMLBIL Roma Axial led

Rasmux DCS Rasmux I cavi vanno numerati seguendo uno schema generale (va stabilito) Sulle BML il rasmux si trova sul crossplate Manca il CSM e la distribuzione del HV 8 canali CCD 8(*2) canali LED

Etichette cavi inplane LEDCCD CA η=0 MDT INPx (x=0,1,2,3) INPx (x=0,1) I cavi LED si distinguono dai CCD dalle dimensioni e dai connettori n.b. come suggerito da Harry e Florian Lato HV Lato RO Guardiamo da sopra o da sotto?

Etichette axial-praxial MDTη Camere A Camere C RO HV AROCRO AHVCHV PRA_CHV : cavo praxial (CCD o LED) angolo CHV AXI_CHV : cavo axial (CCD o LED) angolo CHV Identificazione dei 4 angoli della camera secondo Florian Bauer

Projective e Reference Lables z Image sensor Lens LED-Mask BIL Standard sectors (side A) RO side HV side projective BIL6 BIL5 BIL4 BIL3 Reference system projective BIL-BIS connection RO side BIL1 BIL2 B-sensor platforms Projective: PRO_HV e PRO_RO Reference: REF_HV e REF_RO

BIL-BIS Lable Reference system Projective RASNIK mask (ray 2,3,4) BIL BIS BIS-BIL connection Projective RASNIK mask (ray 1) Praxial B-sensor BIL-BIR: BLS_HV e BLS_RO B sensors: BFL_HV e BFL_RO

Cavi BIL (alignement) CCDLEDLable Inplane24INPx Proximity44PRA_yzz Axial22AXI_yzz Projective--2PRO_zz Reference--2REF_zz BIL-BIS--2BLS_zz x=0,1,2,3 y=A,Czz=HV, RO n.b. Il numero ed il tipo dei cavi dipende dalla posizione della camera

Caveria a livello spacer (BIL)