Calorimeter Layout
VXS crate layout
Fig. 1 Twelve FCAL VXS crates
Fig. 2 Connection of FCAL signal cables to 12 VXS crates. Red box denotes the FCAL insert region.
Fig. 3 Six FCAL crates on the north side. Circles denote crates connected to the FCAL2 insert region.
Fig. 4 Six FCAL crates on the south side. Circles denote crates connected to the FCAL2 insert region.
VXS crates connected to the FCAL2 insert region
Fig. 1 ADC channel assignment (rocfcal2, north)
Fig. 2 ADC channel assignment (rocfcal5, north)
Fig. 3 ADC channel assignment (rocfcal8, south)
Fig. 4 ADC channel assignment (rocfcal11, south)
- Blue region corresponds to ADC channels connected to the FCAL2 insert region (21x21 lead glass modules). Yellow boxes correspond to channels connected to the region outside the insert.
- 108 ADC channels in each of four crates are connected to the insert region
- 238 ADC channels are used in each crate
Possible rearranging of cables
- Move 108 channels from the rocfcal2 (rocfcal8) crate connected to the insert to the rocfcal5 (rocfcal11) crate. The total number of channels in this crate: 108 + 108 = 216 (connect to 14 FADCs), see Fig. 1
- Move 126 channels in the rocfcal5 (rocfcal11) crate connected to the insert to the rocfcal2 (rocfcal8) crate. The total number of channels in this crate: 130 (remaining) + 126 = 256 (connect to 16 FADCs), see Fig. 2. Connect 4 remaining cables to other crates, see Fig. 3
Fig. 1 rocfcal5 crate after re-cabling (216 channels, connected to all FCAL insert modules)
Fig. 2 rocfcal2 crate after re-cabling (256 channels, connected to all lead glass modules)
Fig. 3 rocfcal4 connect 4 lead glass channels to the new flash in Slot 19
FCAL crates after rearranging cables
North side
Fig. 1 D2-2-MID (FCAL 2) after rearranging signal cables
Fig. 2 D2-3-MID (FCAL 5) after rearranging signal cables
Fig. 3 D2-3-TOP (FCAL 4) install one flash ADC in slot 19 (ACDI-0841), connect 4 cables
South side
Fig. 1 D2-7-MID (FCAL 11) after rearranging signal cables
Fig. 2 D2-6-MID (FCAL 8) after rearranging signal cables
Fig. 3 D2-6-TOP (FCAL 7) install one flash ADC in slot 19 (ACDI-830), connect 4 cables
Newly installed flash ADCs
Re-arranged cables in FCAL crates
Translation table for re-cabled crates