Beam availability 2807 0408

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Beam availability 28/07 ? 04/08
PS septum replacement
CERN power cut
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Status of detector  calibrations 
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Summary of week pbs work
Beam No beam since July 29, 8h -General
CERN power cut on July 29, 8h -PS septum
replacement on August 1, no beam till Aug 8 Beam
line -Pbs going to  Beam on  28/07 22h
B2/3 set values off by 0.6A wrt ref.
values -Interlock B4/5 during field rotation
tested and works -SM1 readings fluctuations
noticed night of 29/07 investigated and
fixed by techs on 01/08 replaced ADC
card General -AirWell conditioning unit for MM
DC FE fixed (water flow) -Problematic recovery
of Demineralized water after power cut
?small leaks in solenoid PSU, fixed ?bigger
leak on SM2, fixed -Problematic restart of UPS
units
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Summary of week pbs work
Target - No He3 loss after power cut, but hectic
restart - Polarization restarted 01/08
13h today at 13h (3days) 46.5 -44.7
49.8 Build up time like  best 2004 
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Summary of week pbs work
DAQ -Online filter improvements -Work in
progress to improve trigger rate actual
limitation 15 k/spill, limited by
DATE5 FE -New version of LOAD checks
GEOID Monitoring -COOOL bug fixes -
Synchronisation of afs-onl and Run-logbook
DB - Inclusion of COOOL histos and MurphyTV in
Run-logbook? - To do include beam line info
in Run-logbook  Jiaweis  trigger rate
control
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Summary of week pbs work
DCS Done - dependence on CERN network
removed (except time server and SMS
alerts) - Silicon SciFi-J CAENET comm. Pbs
cured? - RICH PD HV in DCS units for
modules - RICH Wiener LV in DCS - Display
of straw temp. pannel finished -  Masked
items   Channels off  implemented To
do - RICH PMT HV some work on IT/CO
side - SM2 NMR reading - RICH APV LV -
Daq barrack temperature asap - RICH LV trip
on overheat asap - etc
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Summary of week pbs work
BMS/SciFi D/J -T0 BMS/SciFi-J in DB - No
change in trigger time BMS 1/2/5 time
shifted due to TCS clock cable SciFi 1/2
shifted due to F1 resolution changed SciFi
W -Moved out of beam to fix discriminator
board Trigger -Additional tuning when beam
back Silicon -Latch all data taken some
noise dependant on solenoid field, further
investigations needed GEM - GEM01/02/03 moved
out (RICH work)
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Summary of week pbs work
DCs - DC4 moved out (RICH work) - DC0 moved
down 4.5mm and to Saleve 24mm MM - Trips and
problematic operation in 2.5T understood ?
Sebastien report Straws -Threshold scans
taken - ST02 ST03 moved out (RICH
work) RW - Nothing special MWPC - Nothing
special W45 - Fluctuations in gas flow due to
pump pb fixed - Few RO errors
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Summary of week pbs work
MuonW1 - Few mismatches in detector
map MuonW2 - Few problematic channels HCAL1
- LED HV tuning done, waiting for beam -
Problematic ADC channels swapped to dead
zone HCAL2 - Nothing special ECAL1 - A lot of
work done this week on HV all OK - Still
missing part of FE ECAL2 - HV channels OK, 80
FE OK (FIADC pbs)
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Summary of week pbs work
RICH - Radiator gas system no problem
during power cut (UPS and diesel worked)
incident on 30/07 due to burned heater in one
compressor temporary fix during week-end,
cured on Monday. no gas lost leak rate OK
O2 level slightly higher (8ppm)
thermalisation fixed, back to fast circulation
on Tuesday
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Summary of week pbs work

• RICH - Read-out cooling
• not active on 01/08, due to short in
  thermalisation system
• (cooling therm. linked through use of same
  PLC)
• all RO elements connected pbs on few
  MADAPV lines
• improvement on thermal protection of RO
• needs reset to restart LV
• - PD on since 01/08 HV in PVSS CH4 system
  OK
• - LV slow control in PVSS implemented for
  both PM and APV
• - MAMPT all on RO OK threshold scan done
• - APV sparsified mode checked, OK pedestals
  measured
• latency scans stopped by power cut.

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Rich single event display