Etude de bruit de fond induit par les muons dans l'expérience ...

tel-00724955, version 1 - 23 Aug 2012
3.3 Muon veto system 71
42 veto modules, each 2 channels
12 splitter-cards, each 8 input channels
6 discriminators (à 16 Ch)
3
scalers
(à 32 Ch)
scaler file
TDC
(128 Ch)
3 LU
common stop
(x 84)
Veto
delay
(x 84) (x 84)
gate
data file
3 ADC
(à 32 ch)
Time-
Interface
ext. time
6 Bit
Bolo.
clock
Figure 3.12: Electronic chain of the muon veto system.
Bit31 Bit0
Event number
Geometry Multiplicity Size
Time stamp 1
Time stamp 2
Time stamp 3
TDC Header
Channel #1
...
TDC EOB
ADC Header
Channel #1
...
ADC EOB
Table 3.1: Structure of the header (2 first lines) and of the data blocks of the muon
veto events. Each line is a 32-bit word.
3