1. On Chamber Front End electronics Test Valerio Bocci Rafael Nobrega, Davide Pinci (INFN sez. Roma) Giovanni Carboni,Andre Massaferri,Roberto Messi, Emanuele Santovetti (INFN sez Roma II)

2. Test in LNF after dressing: I2C chain,Dialog Test,Cardiac Test,Cardiac Chamber connection, LVDS output test Test in CERN: I2C chain,Dialog Test,Cardiac Test, Test,Cardiac Chamber connection, NO Lvds output test Test location Valerio Bocci 2005

3. USB-CANBUS interface USB-VME interface Service Board INFN RomaII LNF VME ACQ Board Custom Gate Board VME Crate I2c Cables Instrumentation Valerio Bocci 2005

4. Spark+Input Output LVDS Dialog Carioca Service Board I2c_lvds+ctrl signals CANbus Carioca threshold,pulse,charge dac Signal processed from carioca(Analog) and then from dialog (digital) I2c lvds+pulse signal Self Test of the Carioca-Dialog system (Using Dialog & Service Board facility) Only one conection (i2c_lvds) The system can test : board connectivity, carioca channel response, dialog and Carioca functionality The input and spark protection are tested using rate method to measure detector’s capacitance The LVDS output are not tested PC Valerio Bocci 2003

5. ACQ Board (INFN RomaII, LNF) StartStop TST_PULSE (From SB) Gate Board We use the 24 bits Scaler to test the Dialog Lvds Output ACQ Board 88 88 88 88 Dialogs Valerio Bocci 2005

6. Chamber SB ACQ Boards VME USB CANbusUSB- VME interface I2C line FE Chamber’s Electronics Validation V.Bocci, R.Nobrega 2005

7. Inject N charge with Dialog Count N inside Dialog Count N outside using ACQ Noise method to check cardiac Chamber connection (looking chamber capacitance) Chamber FE ACQ SB Chamber FE SB Test 1Test 2 a)Test the i2c FE connection b)Test FE LVDS output a)Test the i2c FE connection b)Test Chamber FE connection c)Test FE performance V.Bocci, R.Nobrega 2005

8. C++ Procedures and Analysis Main Features Test algorithms for all channels Connectivity Noise Sensitivity Offset by curve extrapolation Offset by noise rate Dialog registers test (read and write) DIALOG and CARIOCA auto-injection test TDC (sch. ready) Compatible with GEM and MWPC FEBs Possibility to test 4 channels in parallel Avoid crosstalk Channels accessibility (after DIALOG) Easy to calibrate Linear and Non-Linear Fitting Possibility to use external injection Threshold or charge scan R. Nobrega

9. Sensitivity Noise (using threshold or charge scan) Software Measurements of Parameters Offset (by curve extrapolation or noise measurament) Non-Linear Fit (Levenberg-Marquardt) Linear Fit (10% - 90%) 2.56 Noise rms 900mV 1000mV 800mV true threshold offset R.Nobrega

10. Cardiac Singnature The Cardiac board contains two Carioca The Offset for each carioca channel is different The 16x8bit value of the offset give a way to identify the cardiac. We aspect: bar code-> cardiac signature is a biunivocal. Valerio Bocci 2005

11. Test of the Chamber FE connection using Rate method Valerio Bocci 2005

12. Chamber data production Cardiac Data Cardiac Bar Code On Chamber Measuraments Chamber Cardiac Data Cardiac ID On Chamber Test Program Valerio Bocci 2005

13. New Functionality in the program Two Buttons interface Read Cardiac database from Cardiac company and compare Cardiac Signature Read Cardiac bar code to associate cardiac SN and Cardiac Signature File with chamber data. Valerio Bocci 2005

14. Software Task The main function are already inside the Roma1 Cardiac program. Insert the ACQ read function in the skeleton Add automatic analisys using “root” library in the Roma1 skeleton for rate method analisys. Add new functionality Produce library structure for future use. System assembled in Roma2 V.Bocci, R.Nobrega 2005