|  |  |  |  |  |  |  |  |  |  |  |  | 
   
    | Front-end
    readout electronics: 
 |  | 
   
    |  | 
   
    | Based
    on ASD8 read-out chips 
 |  | 
   
    |  | 
   
    | ASD8 = 8
    channel amplifier, 
 | 
   
    | shaper and
    discriminator: 
 |  | 
   
    | • | ENC ~ 900 +
    70/pF 
 |  | 
   
    | • | shaping time ~
    10ns 
 |  | 
   
    | • | sensitivity ~
    2.5mV/fC 
 |  | 
   
    |  | 
   
    | ASD8 board: 
 |  | 
   
    | 16
    channels (2 x ASD8 chips) 
 |  | 
   
    | àNIM A541 (2005) 610 
 |  | 
   
    | Voltage
    divider: integrated in 
 |  | 
   
    | the
    PMT base board 
 |  |