ICARUS DAQ System

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ICARUS DAQ system

The ICARUS DAQ system has about 100 readout crate of front-end electronics, trigger system, high voltage on the top of the detector and control room with a power computers that control all process of the DAQ. The readout rack of the front-end electronics has connection throuth the feedthrouth of the detector with 576 wires of detector. 
  Common view of the rack
High voltage system 
Trigger system


Calibration system

The calibration system has 4 NIM crate and distribute all required signals
between front-end electronics, trigger system and control room.    
 For more information see technical specifications:  


  Location of the crate NIM on the top of detector

 

  ICARUS T600 Wire Mapping


Control room 









Short Specification of the electronics modules




   1. Digital crate:
 

The digital crate is standard VME crate. This crate was produced by SCHROFF 
and has a low value EMC radiation. Inside of crate 18 module V789, the module
V816 and 1 CPU are accomodated. There is one special backplane that distribute
the global clock and trigger signals between V816 and V789 modules. 
  

  View 




 1.1. Module V789  
 

The CAEN Model V789 ICARUS digital board is a 32-channel digitizer readout board
specially designed for the ICARUS experiment. This board is housed in a 1-unit wide VME
module and its function is to read the digital data coming from the Model V791 (ICARUS
analog board) and to store them in a Multi Event Buffer (MEB) memory, according to a
complex, programmable trigger logic.
 For more information see technical specifications: 


  View of the modulle


 Email to:	@caen.it 


 1.2. Module V816
 

This CAEN model V816 board has been designed and special module for ICARUS experiment.
This board is accomodeted in the last position of the digital crate and distribute 
the signals of the trigger, global clock and enable of the DAQ system.  
 For more information see technical specifications: 


  View of the module



 Email to:	@caen.it 



   2. Analogue crate:
 

Analogue crate accommodate V791 and A764 boards. This crate has 21 slots.
There are 18 Analogue boards and one Slow Control module in front of the crate.
On the back side of the crate 18 A764 boards are accommodated.
 For more information see technical specifications: 


 The connectors of the analogue Crate


 The analog crate with power supply, front view 


 Analogue Crate, front view 


 Analogue Crate, back view 



Bagdat Baiboussinov Email to:Bagdat.Baiboussinov@pd.infn.it




 2.1. Module V791C,Q 
 

The CAEN module V791C(Q) is 32-channel analog board designed as front-end 
electronics for ICARUS experiment. The V791 module has 32 preamplifiers, 
32 shapers, 8 multiplexer, 4 ADC and one fast serial link. Each channel is
sampled at 2.5 Ms/s rate and digitized with a 10-bit resolution by using 
a time division multiplexing technique. The sampling time is 400 ns.
 For more information see technical specifications: 


 Andrea.Puccini   Email to:a.puccini@caen.it

Giovanni Franchi  Email to:Giovanni@caen.it

 
 

  View of the module




 2.2. Module A764
 

   The decoupling board (DB) serves to distribute high voltage, to divide by
decoupling capacitors high and low voltage parts of the electronics of the 
detector, to distribute a calibration signal. Normally the board between 
feed-though of the detector and analogue board is placed. For each 32 channels
one DB module is used. Inside of Module each wire to high voltage supply through
several resistor 10 Mohm is connected. The circuit of module is very simple and
has calibration capacitors, decoupling capacitors and the circuit to test odd or
even channels.  
   The DB has three connectors: input high density connectors (68 pins connector
with 34 twisted pair flat cables, with 0.635 mm pitch), output connector 64 pins
DIN type connector and the connector with power and calibration signals. 
 For more information see technical specifications: 

 
 View of the module



Bagdat Baiboussinov Email to:Bagdat.Baiboussinov@pd.infn.it




 2.3. Module V793 - Slow control Module.
 

The CAEN model V793 board has been designed for slow control of the analog crates.
Each ICARUS analog crate can be equipped with one module V793. The module V793 has functions:
Enable/disable the module V791
Set baseline for V791;
Generate synchronise clock signal;
Measure detector and power supply voltage; 
Distribute calibration signal.  
 For more information see technical specifications: 

 
 View of the module



Giovanni Franchi  Email to:Giovanni@caen.it

 


 2.4. Module High Voltage Filter.
 

   The High Voltage Filter (HV Filter) is two channels filter that serve to cut a 
repetitive high frequency glitches, low frequency disturbs of a high voltage supplies
and transmission lines. Each channel has a low pass filter and monitor circuits 
of the voltage and the current values. The output corresponding coefficients are 5mV/V 
and 5.5 mV/nA. For more information see technical specifications: 

 
 View of the module



Bagdat Baiboussinov Email to:Bagdat.Baiboussinov@pd.infn.it 



 2.5. Power Supply of the analogue crate.
 

The linear power supply has been designed for ICARUS analog crate. Power supply has 
a low value of the noise of the output voltage. For more information see technical specifications: 

  
 The cables of the monitor system and the power supply


  View 



Daniele Corti     Email to:Daniele.Corti@pd.infn.it 
  







Pictures

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