Calorimeter Geometry for the TDR
Sub Detector Dimensions in Z (along beam pipe):
 Preshower (including SPD)
 starts at Z=12300mm
 with a total available space of 180mm
 ECAL
 starts at Z=12490mm
 with a total available space of 835mm
 HCAL
 starts at Z=13335mm
 with a total available space of 1655mm
For more details see the
calo subdetector dimensions along Z (updated for internal
SPD/PS dimensions on 18/05/2000)
Sub Detector Dimensions in X and Y:
(updated for SPD/PS on 18/05/2000)
 cell sizes
 for SPD/PS:
 inner region: SPD=39.66mm, PS=39.84mm
 middle region: SPD=59.5mm, PS=59.76mm
 outer region: SPD=119.0mm, PS=119.5mm
 for ECAL:
 inner region: 40.4mm
 middle region: 60.6mm
 outer region: 121.20mm
 for HCAL:
 inner region: 131.3mm
 outer region: 262.6mm
 inner acceptance (defined as the limit of the active area that is
going to be read out) is
 for ECAL: X=+323.2mm and Y=+323.2mm
 for HCAL: X=+393.9mm and Y=+393.9mm
 inner hole (defined as the limit of the detector mechanics and that
will be filled with shielding material up to the beam pipe) is
 for ECAL: X=+242.4mm and Y=+242.4mm
 for HCAL: X=+262.6mm and Y=+262.6mm
 outer acceptance (defined as the limit of the active area that is
going to be read out)
 for SPD/PS:
 of inner region:
 X: SPD=+952.5mm ; PS=+957.5mm
 Y: SPD=+715.0mm ; PS=+717.5mm
 of middle region:
 X: SPD=+1905mm ; PS=+1913.5mm
 Y: SPD=+1190mm ; PS=+1195mm
 of outer region:
 X: SPD=+3810mm ; PS=+3827.5mm
 Y: SPD=+3095mm ; PS=+3110mm
 for ECAL:
 of inner region:
 X=+8*121.2mm=+969.6mm
 Y=+6*121.2mm=+727.2mm
 of middle region:
 X=+16*121.2mm=+1939.2mm
 Y=+10*121.2mm=+1212.0mm
 of outer region:
 X=+32*121.2mm=+3878.4mm
 Y=+26*121.2mm=+3151.2mm
 for HCAL:
 of inner region:
 X=+8*262.6mm=+2100.8mm
 Y=+7*262.6mm=+1838.2mm
 of outer region:
 X=+16*262.6mm=+4201.6mm
 Y=+13*262.6mm=+3413.8mm
 outer overall size (defined as the limit of the detector mechanics
that gives the requirement for the space needed in the garage position for X
and the available space in height for Y)
 for ECAL:
 X=+3878.4mm+frame=???
 Y=+3151.2mm+frame=???
 for HCAL:
 X=+4201.6mm+frame=???
 Y=+3413.8mm+frame=???
For pictures of the layout see under:
 segmentation in X,Y
 FE cards implementation
