1. Status of LAV electronics commissioning Mauro Raggi, Francesco Gonnella Laboratori Nazionali di Frascati 1 Mauro Raggi - Laboratori Nazionali di Frascati4 June 2014

2. Status of LAV FEE boards tests  All the 81 FEE boards have been tested successfully  Time resolution and thresholds offset in the specs  4 fully working spare boards already available.  4 more boards have 1 faulty channel to be fixed soon  65 boards are already at CERN  49 already mounted in the cavern 4 June 2014Mauro Raggi - Laboratori Nazionali di Frascati2 Threshold offset of 85 boards Time resolution of 85 boards

3. FEE identity card 4 June 2014Mauro Raggi - Laboratori Nazionali di Frascati3

4. Status of LAV stations 4 June 2014Mauro Raggi - Laboratori Nazionali di Frascati4 LAV updated situation LAV stationHVCratePSRasPi FEE Boards FEE firmware Signal cable CAN chain cables CAN terminatorDongleTDCMech.TEL 62TEL62 fwTDCBs A1 okyes 1.01.384 yes noyes old ok201311130,1,2 A2 okyes 1.01.384 yes old ok201311130,1,2 A3 okyes 1.01.384 yes old ?201311132,3 A4 okyes 1.01.384 yes noyes new ?201312050,1,2 A5 okyes 1.01.384 yes noyes no A6 offlineyesnoyes 1.01.384 yes ECN3 no nose supportno A7 offlineyesno yes 1.01.384 ECN3no ECN3 no nose supportno A8 offlineyesno yes 1.01.384 ECN3no ECN3 no nose supportno A9 storage room no storage roomno A10 storage room no storage roomno A11 Frascati no storage roomno A12 Frascati no??no https://twiki.cern.ch/twiki/bin/viewauth/NA62/LAVElectronicsInstallation Details in:

5. Status of crates (as I understood it)  All crates up to A8 are already installed  Missing power supplies for crate A6 and A8  Missing the crates from A9 to A12  Crate A9-A10 are in the PCFarm room for DCS testing  Crate of A11 is in the rack used for A11 summer test  Crate of A12 is also near the PC farm and not used 4 June 2014Mauro Raggi - Laboratori Nazionali di Frascati5

6. Status TEL62  LAV1 and LAV2 are currently equipped with working TEL62s (old) and TDCBs  LAV3 TEL62 has a faulty DDR and a faulty TDCB connector, unfortunately not on the same slot…  LAV4 is equipped with a new TEL62 and 3 TDCBs v7  Need 11 new Tel62 and all TDCBs 4 June 2014Mauro Raggi - Laboratori Nazionali di Frascati6

7. Status of the DCS development  DCS user requirement document required by Valeri  We sent the document 15 April 2014 containing all needed specs  Firmware of LAV FEE boards updated to last version 1.01.384  Meeting with Valeri foreseen this week to finalize panels configuration  Needs:  Panels for all the 12 LAV stations to be completed  Stability test with a full crate in operation 4 June 2014Mauro Raggi - Laboratori Nazionali di Frascati7

8. Online actions foreseen  No action foreseen before data is written to disk:  Time offset subtraction (cables, trigger time window) will be done when reconstructing data  Reconstruction also perform slewing correction  Online initialization:  TDC Masked channels  TDC board configuration  Time offsets for trigger streams (see below) and other trigger registers 4 June 2014Mauro Raggi - Laboratori Nazionali di Frascati8

9. Update on the L0 trigger primitive  Started to implement parts for the trigger primitive  Implemented more option for the primitive production threshold  Always produce a primitive if there are two leading (L H. L L, window)  Ask for at least a trailing in the L or H threshold or both  Ask for the ToT to be longer than a programmable value for both low and High.  Errors connected to event logger  PP High without Low  SL FIFO full for each channel 4 June 2014Mauro Raggi - Laboratori Nazionali di Frascati9

10. Possible single-station primitive  Muon like particle (or low energy): Primitive ID: 0000 0001 11xx xxxx  Only low threshold in a block with leading and trailing and small ToT  No more than 5 blocks  Photon like particle (Mid energy): Primitive ID: 0000 0010 11xx xxxx  Full hit (T H and T L ) reconstructed in at least 3 block  At least 1 block with E>0.5 GeV (made using T Lead (High)-T lead (Low)  High multiplicity (High Energy): Primitive ID: 0000 0100 11xx xxxx  More than 10 blocks with full hit  Total Energy >5 GeV  LAV calibration: Primitive ID : 0000 1000 11xx xxxx  At least one full hit in the LAV station (leading + trailing in the Low thr)  Implementation to be studied Note: Trigger conditions are not mutually exclusive Note: the estimate of the energy will be very raw and has still to be implemented. Need data to be tuned not at day 0. 2 April 2014Mauro Raggi- Laboratori Nazionali di Frascati10 new

11. Calibration triggers  The LAV will be able to provide its own calibration trigger  A calibration trigger based on the Q1&LAV condition will be desirable  Used to collect a      with a photon in the LAV + some muons  The expected rate is low and depends on the LAVs used (can be in any case downscaled)  Implementation needs the OR of the triggers from all the 12 stations (need interTel62 communication)  In October test can be foreseen with LAV12 to compare data with other control trigger  LAV only trigger will also be needed  Most of upstream LAV have small acceptance at the CHOD  Allows to get unbiased illumination of the detector and muon halo  Will be useful to keep such a trigger during the muon runs 4 June 2014Mauro Raggi - Laboratori Nazionali di Frascati11

12. End of burst data  We expect to get at the end of burst:  Histogram of total number of hits per channel (trigger less)  Histogram of number of leading  Histogram of number of trailing  We expect to use the standard firmware tool to fill the histograms  Like using “tdcccounter”  Try to include some pulses form LED to be discussed further 4 June 2014Mauro Raggi - Laboratori Nazionali di Frascati12

13. L1 and L2 processing  As proposed from G. Ruggiero during physics sensitivity this will be developed using early data coming form L0 trigger only  Reconstruction of LAV events connecting all the stations information in a single LAV response for the entire event.  Match muons in different LAV 4 June 2014Mauro Raggi - Laboratori Nazionali di Frascati13

14. Conclusion  The LAV electronics test is successfully completed  Commissioning is complete up to ANTI-A5  Almost ready up to ANTI-A8  Waiting Tel62 and 4 crates to finalize the commissioning  The LAV L0 firmware is almost ready for the L0 primitive  First discussion on calibration triggers started 4 June 2014Mauro Raggi - Laboratori Nazionali di Frascati14