Breakdown of tests foreseen in preparation for beam Equipment folder: tests results, handling of NC,...
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Preparation for Circulating Beam Beam Instrumentation 2008 Extended LTC – J-J GRAS [AB-BI] • Breakdown of tests foreseen in preparation for beam • Equipment folder: tests results, handling of NC, performance below specs, machine as commissioned vs. machine as specified • Piquet/Experts availability
Breakdown of tests foreseen in preparation for beam Equipment folder: tests results, handling of NC, performance below specs, machine as commissioned vs
Breakdown of tests foreseen in preparation for beam Equipment
folder: tests results, handling of NC, performance below specs,
machine as commissioned vs. machine as specified Piquet/Experts
availability
Slide 2
Nominal Workflow = Outline of my Talk Monitor Installation HWC
Procedure Documentation Manufacturing & Test Folder
Instantiation NC Handling Getting Access during others HWC periods
HWC of our monitorsUpdate MTF Ready for BeamMachine Check-Out
Slide 3
Nominal Workflow = Outline of my Talk Monitor Installation HWC
Procedure Documentation Manufacturing & Test Folder
Instantiation NC Handling Getting Access during others HWC periods
HWC of our monitorsUpdate MTF Ready for BeamMachine Check-Out
Slide 4
LHCCWG 19/06/07BI Readiness [JJ Gras]4 LHC Monitor Installation
1/2 LHC Beam Instrumentation consists of Beam Position: 1182 BPM
(~15 different types) Beam Losses: ~4000 BLM (IC and SEM) Beam
Intensity: 4 BCTDC (DC current transformer) 4 BCTFR (fast ring
current transformer) - 4 BCTFD (fast dump line current transformer)
2 BSRA (abort gap monitor) Beam Transverse Profile: 2 BSRT
(synchrotron radiation telescope) 2 BWS (wire scanners) 4 BGI
(ionization gas monitors), 33 BTV (Beam TV Monitors) Tune and
Chromaticity: 14 BPL (dedicated pick-ups) 4 BQK (tune kickers) 4
BQS (Schottky monitors) Luminosity: 8 BRA (2 types)
Slide 5
LHCCWG 19/06/07BI Readiness [JJ Gras]5 LHC Monitor Installation
2/2 All monitors are installed except: BLMs in LSS1R, 2L&R, 5L
and 7L&R (i.e. 15% of the total) in progress or waiting for
green light Interconnection, end of vacuum interventions). Well
extend our Russian team contract up to May for this and rely after
on CERN staff and FSU to handle the contingencies BRAN detectors 4
(out of 4) AB/BI CdTe detectors ready for installation 2 (out of 4)
Berkeleys ionization chambers to be shipped in April. These
monitors are not linked to vacuum
Slide 6
Nominal Workflow = Outline of my Talk Monitor Installation HWC
Procedure Documentation Manufacturing & Test Folder
Instantiation NC Handling Getting Access during others HWC periods
HWC of our monitorsUpdate MTF Ready for BeamMachine Check-Out
Slide 7
BI Test Procedures 1/4
Slide 8
Procedures 2/4: EDMS LHC HW Baseline
Slide 9
Procedures 3/4: Content Common Chapters shared by BI procedures
List and description of tests per architecture layers Tests sorting
per commissioning phases
Slide 10
Procedure State 4/4 We agreed with the HWC team and the MTF
providers that we will extend these procedures, originally limited
to initial HW commissioning, to Machine check-outs, repeated each
shutdowns Commissioning with beam Regular tests during the run
(good as new) The procedures are currently reviewed to include
these new tests.
Slide 11
Nominal Workflow = Outline of my Talk Monitor Installation HWC
Procedure Documentation Manufacturing & Test Folder
Instantiation NC Handling Getting Access during others HWC periods
HWC of our monitorsUpdate MTF Ready for BeamMachine Check-Out
Slide 12
BI Manufacturing and Test Folders 1/3 We use the MTF steps to
log our tests result for HW commissioning Machine check-outs Beam
commissioning and regular test results will be kept in the
operational logging DB We also use the MTF properties to store
information on layout or performance measurement performed during
installation for the distributed systems BLM & BPM. These
properties will be used for the initial online configuration of the
monitor software and the control layout maintenance.
Slide 13
MTF 2/3: BPM Steps
Slide 14
MTF 3/3: BPM Properties
Slide 15
NC Handling 1/5 Most of the time, problems detected during
installation or HWC (broken electronics, bad connectors) are
treated and fixed immediately In some rare cases, this is not
possible (i.e. non conformity on a BPM in a cryostat). In these
cases, we issue a NC document via the monitor MTF in the
corresponding step.
Slide 16
NC Handling 2/5: BPM NC
Slide 17
NC Handling 3/5: BPM NC
Slide 18
NC Handling 4/5: BPM NC
Slide 19
NC Handling
Slide 20
Nominal Workflow = Outline of my Talk Monitor Installation HWC
Procedure Documentation Manufacturing & Test Folder
Instantiation NC Handling Getting Access during others HWC periods
HWC of our monitorsUpdate MTF Ready for BeamMachine Check-Out
Slide 21
Access Conditions 1/5
Slide 22
Access Conditions 2/5 Free AccessNo Access Restricted Access RF
Tests No Access for Months!
Slide 23
Access Conditions 3/5 We have to pass after inter connections
(BLM/BPM in the arcs) and after bake-out in the LSS. cope with
co-activity and access conditions co-habit with RF in point 4 where
most of our individual systems are concentrated (no collimators or
inj/ext kickers) So our time is counted and we work in close
collaboration with planning and HWC teams to organize our
interventions
Slide 24
Access Conditions 4/5 We evaluated and listed all the
interventions we still have to do for the HWC of our instrument. We
maintain and update this list in a file shared with planning and
HWC teams We classify intervention per sectors with the following
color schema
Slide 25
Access Conditions 4/5 This gives:
Slide 26
Access Conditions 5/5 Every week, we eliminate what has been
done and Valentina (Planning Team) tells us what we can do next
week adds contingencies (interconnect re-opening, second bake out
of a zone) warns us if access conditions change during the week
This not easy but necessary We hope that this will become an habit
for everybody in the coming weeks to avoid recent hiccups (agreed
access refused once in the tunnel) Well have to find some agreement
with RF to get some access during their tests
Slide 27
Nominal Workflow = Outline of my Talk Monitor Installation HWC
Procedure Documentation Manufacturing & Test Folder
Instantiation NC Handling Getting Access during others HWC periods
HWC of our monitorsUpdate MTF Ready for BeamMachine Check-Out
Slide 28
Beam Position Monitors All electronics cards (tunnel &
surface) are first passed through a test bench where parameters of
relevance for nonlinearity correction are stored in MTF. The full
cabling & BPM chain (small coax, cryo feedthough, cryo-cables,
button feedthrough) is tested during HWC for non conformities. Some
14 NC (out of all interconnects) have so far been created, of which
we have managed to bring approx half back into tolerance by
changing the components - the others are still marked as NCs. The
origin of these NCs are all slightly different (cryocables not
firmly connected, overtightening of cryo-flange connections,
damaged cryo cables), but half of them were found in sector 6-7,
and all had passed a similar test in SMI2. BPM mapping checks are
systematically performed after installation (i.e. ~80% of LHC
system is already verified for this). Finally, Sputnik tests allow
full commissioning of FIFO acquisition mode, which will be used for
beam threading If these tests are successful, the system will be ok
for machine check out and the only things left to do with beam
should then be the polarity checks the fast timing set up of all
BPMs.
Slide 29
Beam Loss Mon. All electronics cards (tunnel & surface) are
first passed through a test bench where parameters of relevance are
stored in MTF. The full cabling & BLM chain is tested during
HWC. The HV modulation and acquisition via test signals together
should check every channel response and correct mapping. The test
via RA source seems nevertheless necessary for this critical
system. This second check of functioning and configuration of the
system will reduce the errors. We have at many locations a mounting
and dismounting of monitors, which potentially increases the risk
of making mistakes that would make the diagnostic and tuning with
beam of the system even more difficult. If these tests are
successful, the BLM system should be ready for machine check-out
and beam commissioning
Slide 30
Beam TV Monitors - 31 cameras (out of 33) are installed and
aligned - 31 associated electronics are installed The 31 systems
have passed the hardware commissioning tests (steps defined for
MTF) 'locally' and throught the VME systems (BTV cards with VME
acces CTRL). Everything is up to date in MTF. The 2 remaining
systems are waiting for machine installation progress (point 8:
back-out to be redone week 13 and point 2: back-out week 14(?)) BTV
systems should be ready for machine check-out and profile
measurements
Slide 31
Wire Scanners Mechanics and detector installation in the tunnel
are done on right side and in progress on left side, including
local test. US45 electronics installation will follow before the
end of March allowing full acquisition chain checks. If these tests
are successful, the BWS system will be ready for machine check-out
and profile measurements in the bunch averaging mode. Bunch by
bunch profile acquisition will require fast timing tuning.
Slide 32
Synchrotron Light Telescopes BSRT RA43 (beam 2) In place,
currently in HWC, to be followed by Cold check week 14 BSRT RA47
(beam 1) In place, HWC starts with access in week 12, cold check
week 19 Then the Video acquisition will be ready, calibrated to the
test target, all data transmissions checked as far as CCC, and left
running with a test target during the following cool down. The fast
cameras will also be fitted (even before the intensifiers are
available) to enable run time load and data transmission tests in
the HWC and machine checkout phases. The intensifiers will be
fitted during a short access to be defined in May/June (TDB with
RF). After machine check out, the BSRTs will be ready for initial
beam commissioning (apart from "just before beam" access). "just
before beam" is a 1 hour access needed to set the hardware from
target to machine light.
Slide 33
Ionization Gas Monitors HWC of the warm magnet have been done.
They are ready for machine check out once their operational mode
will be agreed. The camera, optics and tunnel electronics plus the
US45 electronics will be installed by the end of the month allowing
acquisition and control chain checks. Well most probably need a
local pressure bump to see 2008 low intensity beams. The original
design to inject gas agreed with AT/VAC is now considered risky by
AT/VAC who would like to investigate other options. The current
agreement is that they will install what has been foreseen but that
injection will only be used on dedicated MD and not on standard
routines BGIs will be ready for machine check out beginning of
April but most commissioning with beam issues will be linked to the
available gas injection system.
Slide 34
Beam Current Transformers Tunel and alcove electronic will be
ready for HWC on week 18. Several diagnostic and simulation units
are foreseen to test the calibration procedures These systems will
be available for machine checkout from 4-5 cool-down onwards (~
week 21) Both should then be ready for beam expect high band width
acquisition mode of the fast BCTs (bunch by bunch acquisition, dump
line) which will require fast timing tuning.
Slide 35
Luminosity Monitors BRANB Pt 2&8 ; BI Monitors The
electronics installations will be finished for the end of March. We
will then remove detectors and re-installed as late as possible
since they are not necessary during the HWC and machine check out
phases and would not survive an un-announced bake-out. If these
tests are successful, these monitors will be ready for machine
check out in April and the following tuning will be left for beam
fast timing and coincidence synchronisation threshold scans
background evaluation BRANA Pt 1&5 ; Berkeley Monitors 2/4
chambers installed: one has a dead quadrant and both need
modifications (do not stand the nominal High Voltage) Two more
chambers are expected some time in April, No electronics installed
as none exists yet. Our feeling is that it will at best be "just in
time". BI envisage to install temporary scintillators/PMT systems
as plan B in case something goes wrong with the ICs. If we manage
to install and HWC these monitors in time, commissioning with beam
will be as for BRANA
Slide 36
A word on global Tests EMC Local effect of Kickers in Pt 6
(extraction), 2 and 8 (injection), 4 (tune and aperture) RF in Pt 4
Collimation motorization in point 3 and 7 On our instrumentation
(Pick-Ups, BLM, BTV and BCTs) will be tested in collaboration with
the concerned AB groups. UPS infrastructure BI has INB critical
systems (BPM, BLM and BCTs) under UPS to ensure that Post-Mortem
buffers are retrieved and stored even during a major power cut.
Should we check that nothing has been forgotten along the whole
acquisition line?
Slide 37
Nominal Workflow = Outline of my Talk Monitor Installation HWC
Procedure Documentation Manufacturing & Test Folder
Instantiation NC Handling Getting Access during others HWC periods
HWC of our monitorsUpdate MTF Ready for BeamMachine Check-Out
Slide 38
Machine Check Out Once HWC is ok, we can start machine check
out of an instrument in order to Check its integration in the
control system Check its functionality Debug it as much as we can
before beam Have people involved (commissioners from OP/ABP)
knowing and 'owning' the systems.
Slide 39
Machine Check Out We will base this activity on the summary
dashboard on our Wiki Web. Test of the software public interface
agreed with OP/ABP RBAC implementation will start when the
configuration tools will be ready 2 dedicated test servers are in
place to assess our logging needs before migration to operational
servers Fixed Displays and Graphical User Interfaces Testing
processes introduced in the LHC sequencer to regularly (ie before
each fill) check the status of our instruments
Slide 40
Machine Check Out The BI SW responsible of the instrument will
organize the continuous assessment of its instruments, ie:
find/organize time slots, also outside official dry runs, where
conditions allowing to test a (or several) box of the dashboard are
met. Invite the instrument team members to test the box together or
by sub-groups depending of the case maintain the dashboard info up
to date (color scheme and details on the box dedicated page) and
prepare battle field for the next iteration Well also prepare a
sequence of events (injection, BLM/BPM/BSRT/BQ measurements, start
of ramp, beam dumped,...) and ask Mike to play it for us regularly
outside dedicated dry runs. Like this, we should be able to
progress between the ooficial dry runs.
Slide 41
Machine Check Out In addition to this, we will also participate
to the LSA dry runs. This dashboard should help the organiser to
know what they can use The details of this approach will be
discussed next week during LHCCWG and we hope to be able to launch
this activity during the second half of March on several individual
systems Finally, AB/BI do not see the need today to have a piquet
service during the HWC and machine check-out period and will
organize these tests during normal working hours.
Slide 42
Nominal Workflow = Outline of my Talk Monitor Installation HWC
Procedure Documentation Manufacturing & Test Folder
Instantiation NC Handling Getting Access during others HWC periods
HWC of our monitorsUpdate MTF Ready for BeamMachine Check-Out
Slide 43
Conclusions BI HW commissioning for individual systems starts
really now that we can. Most of it will be finished before RF tests
start again but we will need some accesses in point 4 during this
period. Distributed system HWC is in progress following
installation Machine check out will follow HWC instrument per
instrument and will be done in collaboration with the OP/ABP
commissioners Then See Rhods presentation tomorrow