1Yu. Guz

Piquet report 21/06 – 20/07

20/07/2011

June 21-27 Sergey Filippov

June 28-July 04 Luigi Li Gioi

July 05-11 Rustem Dzhelyadin

July 12-18 Tengiz Kvaratskheliya

July 19-25 Yury Guz

2Yu. Guz20/07/2011

June 21-28 data taking (delivered 77.7 /pb, recorded 72.0 /pb)

June 29-July 03 MD

July 04-08 technical stop

July 09-13 re-commissioning with beam, recovery from power cut 10/07

July 14 resumed data taking

3Yu. Guz

Smooth data taking. Very few things to be mentioned:

1). Daniel have introduced a new SPD temperature panel, to be used in the checklist.

2). 21/06 the calibration farm analysis did not provide any plot into the presenter. Solved by rebooting the hist01 machine (Beat).

3). 27/06 the L0hadron errors in the emulator comparison appeared (more details in next slides)

20/07/2011

Before the technical stop

4Yu. Guz

1). 05/07/11 morning: ECAL CW studies: MV currents and pumping frequency measurements 05/07/2011. A noticeable decrease of the pumping frequency had been observed in PM/CWs closest to the beam. Details in Irina’s presentation today;

2). 05/07/11 12:00: HCAL emulator comparison problem since 27-June. For cr. 24 FEB11, solved by Marie-Noëlle and Cyril D. 05/07/2011: the two cables coming from the FEB#11 crate 24 moved from input 0 to input 3 on both TVB5 and TVB7 side A;

3). 05/07/11 evening: HCAL 137Cs calibration 05/07/2011 (HV recipes updated next day 06/07/2011). Details in the HCAL presentation today;

4). Several attempts to perform the SPD threshold scan during the technical stop, without success (?).

20/07/2011

Technical stop activities 4-8 July

5Yu. Guz

1). LV/MV/HV system recovery after power cut: a reminder (the procedure is described in the Patrick’s presentation at the Calo piquet training 21-Oct-2009, http://indico.cern.ch/getFile.py/access?contribId=2&resId=0&materialId=slides&confId=70825)

‒ check that the Agilents in D3 are powered and have output voltage OFF

‒ make sure that all the equipment in our rack (B1B01) at the D1 balcony is powered: turbine of this rack, rectifiers, RCM crates, Ethernet switch (at the very bottom of the rack);

‒ in case if 220 V AC power is absent on something of the above – call Laurent 162989 (or DSS expert) to switch it back ON at TDM drawers

‒ if the RCM crates are OFF –switch them ON manually

‒ after that, check the system. DO NOT TRUST “GREEN” FSM STATE!!! Try to switching some item ON/OFF via FSM; if it fails, restart the MARATON OPC server(s):

• CADCSLV: via service+ on cadcs01w

• INFDAI1: ask Beat to do it.

‒ then proceed with MV and HV

20/07/2011

Power cut 10 July recovery - I

6Yu. Guz

2). Problem at configuring TVBs: solved by Marie-Noëlle by restarting SpecsServer at ECDAQHVC1W and ECDAQHVA01W.

3). the PRSHVC1 project got corrupt. Recovered from backup by Daniel.

‒ the backup was of 01 February: had to manually add the changes introduced in April, namely reconnection of C1004B19D02 from Bd#5 to Bd#6, new HV recipe and slight modification of lbPRSHvMon.ctl script. Project backups probably have to be done more frequently (every technical stop?).

4). Problem with LEDTSB @ HCAL side C: in 23 out of 26 outputs used in HCAL C, the timing shifted 1 BX earlier (T0Prev1). Not understood: simply introduced new settings corrected for that, and saved them as a DEFAULT recipe,

‒ then encountered a subsequent problem: at CONFIGURE, old settings were being loaded into the module, although it was verified that the DEFAULT recipe itself contained new ones

• solved by Luis by restarting the FSM’s PVSS00ctrl

20/07/2011

Power cut 10 July recovery - II

7Yu. Guz20/07/2011

L0hadron operation

Crate24 FEB14 run 96291 18/07/2011

re-appeared, still pending

Crate23 FEB07run 95946 14/07/2011

14/07/11: replacement of FEB07 and TVB was unsuccessful

fixed next day by re-plugging the TVB cable into another output of FEB07

Crate24 FEB06, FEB11, FEB14since run 94341 27/06/2011

FEB11 errors fixed during TS by rearranging cables in TVB5 and TVB7 (side A)

FEB06 & FEB14 errors gone by themselves

The operation becomes unstable, we should keep an eye on it.