This area contains slides of talks and reports
on work in progress on the End Cap Muon Alignment and software. If you
are not one of our collaborators, you are not entitled to review this
material. It contains preliminary work which can be inaccurate, and
only members of our collaboration are in a position to determine
accuracy.
- Various documents associated with the alignment system.
This includes things like locations of DCOPS together with their addresses and database
index numbers.
- List of tasks to complete
- Tools and documentation for managing the SDF files
Also specification of data sets.
- How to read DCOPS by hand
- Remote DAQ management and commissioning utilities
- Analog data on the web
- Instructions for special commissioning runs
- Chunks of code we need
- Notes on MTCC1/2 and the abandoned
java package
- Note that the readout program only runs on Linux.
- Posts From 2005-2006
- Posts From 2007
- 17Jan2008 Working PVSS panel is now
available.
- 24Jan2008 PVSS panel status.
- 25Jan2008 PVSS panel nearly done.
It includes error displays.
- 28Jan2008 Bob finds a laser
instability, the PVSS panel is nearly done (needs some FSM work), and
30-Jan Powerpoint report prepared.
- 30Jan2008 Bob finds more
evidence of laser
instability, and I have a new set of transfer line profiles.
- 01Feb2008 RPM work proceeds for
emudcops area. Not sure how important this is, since the directories are
nfs-mounted. Need to adjust rc.local in any event.
- 06Feb2008 Results so far from
learning about COCOA at FIT.
- 12Feb2008 Report for CMS week on
Cocoa plans.
- 29Feb2008 Help files for readout
and utilities. Status.
- 07Mar2008 Last night's laser run.
ME+2 had no lasers, ME+1 did. Ran again 24 hours later, got ME+2 this time.
- 08Mar2008 ME+2 again. No laser seems
to go more than halfway across! (Blocked by shield because disks aren't close
enough)
- 10Mar2008 ME+3 and ME+4. Lots of
ambient light.
- 11Mar2008 Found/fixed DAQ bugs.
- 14Mar2008 Installed Saturation
finder for estimating means of saturated profiles.
- 21Mar2008 Profile finding didn't
run. LV?
- 24Mar2008 Typos in ME+1 coordinate
file.
- 26Mar2008 ME+2/ME+3 profiles, chamber
within SLM drawing.
- 09Apr2008 Alignment Integration report.
- 16Apr2008 ME+1 fit status.
- 22Apr2008 Report on Cocoa progress.
Can fit HSLM1 with ideal and real data. No PG comparison yet.
- 02May2008 Working ME+1 DCOPS
skeleton is now available.
- 08May2008 Fit photogrammetry positions
are close to ideal ones. (not checked against data yet) sensor2D model is
OK, but lasers not in place yet.
- 27May2008 Data from Minus side available.
- 02Jun2008 ME+1 sdf file works,
including Link components.
- 03Jun2008 Problems in DAQ. Some fixed.
New meaning for upper 12 status word bits.
- 09Jun2008 Ran profile check on
Plus side and Transfer lines.
- 10Jun2008 Ran profile check on ME+2 and ME+3.
Still seem to have problems: ME+2/SLM1 is pretty much all off, the other
ME+2 lasers only go halfway across. ME+3 SLM1 laser go across, but the
rest have misalignment.
- 12Jun2008 Repeat of data taking on
Plus side.
- 13Jun2008 PickLine. Why are so
many profiles truncated?
- 18Jun2008 Readout system troubles.
- 20Jun2008 Followup on readout
troubles. DAQ is in DEBUG state, and thus usually not running
- 01Jul2008 Example failure.
- 06Jul2008 Amazingly, the DAQ ran
without errors on the Plus transfer lines, up until 8:52 when everything
quit working. OK, pilot error.
- 07Jul2008 Summary of HSLM2
data with field on and off. Variation of readout error with station and with
transfer line number.
- 08Jul2008 : Last night's run results.
- 09Jul2008 : Tests of DAQ. Adding
extra operation time helps a lot w/ truncations. DAQ report. 20 minute
initialization time!
- 10Jul2008 : Further DAQ tests.
- 11Jul2008 : Last night's run results.
Reminder of how to configure DCOPS readout.
- 12Jul2008 : Last night's run resuls. Database size questions.
- 13Jul2008 : Cruzet 3 preliminary results.
- 15Jul2008 : PickLine again.
- 21Jul2008 : Samir-style plots for ME+1/SLM2
- 22Jul2008 : Readout tests. Integration meeting report.
- 29Jul2008 : DAQ test results. The
two kinds of failures are not susceptible to simple or robust software fixes.
I'd have to fake some data. Or interpolate.
- 04Aug2008 : More data on failure
rates in the DAQ. Terminal server had to be rebooted!
- 07Aug2008 : Transfer utility tested.
Script works fine.
- 11Aug2008 : Testing transfer
lines with some MABS. Transfer line reads need longer delays.
- 12Aug2008 : New readout time is
24 minutes.
- 18Aug2008 : Lasers tuned for 4T by
Xiaofeng at ME+2/ME+3
- 19Aug2008 : Fix bug in DCOPS_Prefetch.cc
DAQ is now live.
- 20Aug2008 : DAQ status.
- 29Aug2008 : Data from closed detector, magnet O(1T)
- 01Sep2008 : DAQ fixes
- 05Sep2008 : Transfer line analysis
fails.
- 06Sep2008 : Why fake errors?
- 08Sep2008 : Some of our results
from early morning magnet test.
- 10Sep2008 : Milestone! Also fixed bug
in DCOPS_COCOA_* files, and hacked CocoaDaqReaderRoot to read them.
- 11Sep2008 : DAQ status. Data
profile review.
- 15Sep2008 : DAQ status. System
fails quickly.
- 18Sep2008 : DAQ ran very smoothly
yesterday w/o MEx4. Some plots of chamber position vs time and field.
- 30Sep2008 : Various looks at rotations,
and the MuonGeometryArrange comparison tool seems to work.
- 08Oct2008 : ME+1/SLM1 COCOA
reconstruction plot with nominal values. Display code doesn't have proper
pin offsets.
- 09Oct2008 : Profiles at 2.75T
- 10Oct2008 : Profiles at 3.8T some of them--we got a bad event.
Also version 1.0 of the muon geometry comparison tool.
- 13Oct2008 : Something is wrong with
DAQ. Many failures.
- 16Oct2008 : 3.8T profiles and fits. Bad news about lasers: spot checks
hit only the SLM lines that were actually working.
- 18Oct2008 : 3.8T, but Minus side lasers not working for us.
- 20Oct2008 : 0T, Transfer line checking. Also checking whether adding
delays to laser requests helps. It doesn't.
- 27Oct2008 : DAQ problems. New
program for control/monitoring: bypass2.
- 28Oct2008 : Workaround found for DIM
problem. Have profiles.
- 29Oct2008 : We have drift in the
laser position.
- 30Oct2008 : More drift studies while
looking for bugs in alignment code.
- 04Nov2008 : DLC 92 drifting over 4
days. Found the bugs in MuonGeometryArrange; the new tar file is on lxplus.
- 05Nov2008 : ME+2/SLM1 chamber
position fit stability.
- 07Nov2008 : ME+1 chamber position
fit stability. ME-1 geometry question.
- 12Nov2008 : Analysis of Z shifting in chamber fits
- 13Nov2008 : ME+1 fit positions
- 14Nov2008 : Chamber fit positions vs time
- 18Nov2008 : Transfer line fiddling
- 19Nov2008 : Status of Readout, ME+1 fitting
- 20Nov2008 : ME+1 fits with different models
- 24Nov2008 : Distance to MAB
- 28Nov2008 : Tracked down last (?) error in SDFs
- 03Dec2008 : Report on ME+1 reconstruction using CRAFT: analog + DCOPS
- 10Dec2008 : First results of
work with transfer lines. Found backwards DCOPS?
- 12Dec2008 : Found problem with
MuonGeometryArrange: input xml file has to include CSCRing estimated
position also.
- 22Dec2008 : Back to basics raw data
- 23Dec2008 : Results for chamber rotations for ME+1
Illustrate where the oddity lies. Updated 6-Jan-2009!
- 05Jan2009 : Transfer plate and z-sensor distancemeter
position notes. ME+1 transfer plate relative sensor positions.
- 08Jan2009 : Bob Handler's
profile asymmetry checker.
- 10Jan2009 : Chamber positions with
various values of the offset from the ASPD sensor center to the face of the
MAB plate on which the targets are pasted(?). Also Gyorgi's estimates of the
paper target locations in CMS Z (MAB Y), and a revised raw prediction set.
And the X/Y of the targets.
- 13Jan2009 : Chamber positions using
30mm offset from ASPD sensor center to the face of the MAB. Does not include
Gyorgi's numbers.
- 14Jan2009 : Illustration of transfer
plate.
- 19Jan2009 : Hand projections
- 21Jan2009 : Distancemeter projections
- 22Jan2009 : Deviations from ideal
and PG for Cocoa fits for Ideal, 0T, and 3.8T
- 23Jan2009 : Distancemeter comparisons
- 26Jan2009 : Alignment pin and chamber positions
- 27Jan2009 : Distancemeters again.
- 29Jan2009 : Distancemeters, including
disk rotations from
survey
- 02Feb2009 : Hand check of ME+1/3_03
Z positions.
- 04Feb2009 : Shape of 1/2 to 1/3
mount plate, report, info on distancemeter positions
- 10Feb2009 : Distancemeter numbers
seem sane.
- 11Feb2009 : ME+1/2 photogrammetry
comparisons. Also picture of where cable covers the target.
- 12Feb2009 : Fit comparisons with each other and PG
- 16Feb2009 : Better number for
distance of dowel to chamber surface for ME+1/3 (and ME+1/2!)
- 17Feb2009 : Try to optimize to
discover where the missing distance is. (Found it later: shims not done right)
- 18Feb2009 : Progress on Z for ME+1
- 20Feb2009 : Reports on ME+1 Z, impact point for IR sensor
on target at Plus PT6, and how DCOPS are mounted on ME+1 chambers.
- 02Mar2009 : PG Z measurement error is more like 1mm than 300
microns. Zoltan's pictures of IR targets: Looks like target is on wrong place for Point 3. Also the
cable is in the way for the Plus side Point 3--the IR beam will probably not hit the MAB surface.
- 05Mar2009 : Progress on draft
- 06Mar2009 : Found bug in skin Z
- 09Mar2009 : Transfer line calculations
and where the IR targets need to go--clearly shown.
- 12Mar2009 : Pre-blessing draft
- 20Mar2009 : Problem: Celso's and
my Z's for ME+1/2 disagree.
- 25Mar2009 : Comparing my Z's and
Celso's Z's for ME+1/2. Rotation seems to play a role.
- 03Apr2009 : Bob's and my talks for Monday. Variation of Z of initial
ME+1/2 positions.
- 07Apr2009 : New hierarchy. Look
at disk rotation. Also some notes about Bob's findings: asymmetry in
laser mounting and filters.
- 08Apr2009 : Hand calculation of Plus Endcap
disks using Transfer Line information, vs survey. Disagrees.
- 14Apr2009 : Todo for Transfer lines
- 16Apr2009 : Skewness in profiles, and comparing deviations
from one DCOPS to another. First pass at inspecting the laser beam fan directly.
- 20Apr2009 : Picture of laser beam fan, no distortion noted.
- 22Apr2009 : PlusEndcap.sdf first trials.
- 24Apr2009 : Error in drawing AFFLP-21.00.00blk.dwg found.
- 29Apr2009 : First pass at trying to use DCOPS to study laser fan.
Saturation intervenes.
- 30Apr2009 : Cocoa on PlusEndcap transfer lines,
something is wrong somewhere. Also a first look at the laser fan.
I need to look at other lasers to see if this is the same.
- 01May2009 : Laser distortions.
This doesn't look very good.
- 06May2009 : Detailed laser distortions. Also a first Cocoa
pass on the Plus Endcap transfer lines.
- 07May2009 : Transfer Line work.
- 08May2009 : Report on crosshair
laser beam fan problem and solutions, report on first results from Cocoa
Transfer Lines.
- 14May2009 : Second pass of
photogrammetry improves DCOPS positions.
- 15May2009 : Effect of dropping
bad CCD points at reference center for ME+1 is O(100) microns or less.
Beam fan at 3 meters is flat.
- 18May2009 : Dropping bad CCD points at reference center
for ME+2 can be over 300 microns in Z.
- 20May2009 : Effect of ambient
light, moving DCOPS backwards along crosshairs (nothing new)
- 21May2009 : Laser fan RMS at 13m
is 2.4 or 6 pixels (using a mirror to get the full distance).
- 26May2009 : Cocoa fits to disk positions and rotations.
- 27May2009 : Coarse estimates of disk positions and rotations
from data.
- 28May2009 : Coarse estimates of disk positions, and report
- 29May2009 : Preliminary estimates for Minus Endcap disk positions
- 02Jun2009 : New plots for ME+1/HSLM5
- 10Jun2009 : First look at SLM on Plus Endcap after closure
- 16Jun2009 : First SLM and Transfer line (w/o MAB)
- 17Jun2009 : Transfer Lines with MAB
- 18Jun2009 :
- 20Jun2009 : First results from complete (albeit
not perfectly aligned) transfer lines.
- 22Jun2009 : Full transfer lines! Profiles from DAQ
- 23Jun2009 : Superposed profiles
taken at different times.
- 26Jun2009 : Transfer Line status report.
- 29Jun2009 :
- 02Jul2009 :
- 07Jul2009 : Profiles from 3-July.
- 16Jul2009 :
- 21Jul2009 : 21-July profiles. Problem with negative
background areas.
- 24Jul2009 : Fixed Left/Right bug in translation routines online.
Very strange that IR sensors agree better Plus/Minus than within a side.
Error in version of OptOCOPS.cc means the Transfer Lines need to be redone.
- 26Jul2009 : Profiles from Friday's scans.
- 27Jul2009 : Calibrations for DCOPS improve fit, for transfer
plate make it go mad.
- 28Jul2009 : 3.8T profiles. ME-3 off and ME+3 laser bad.
Real hits in Cocoa have spread, Simu hits are in a narrow band.
- 29Jul2009 : 3.8T profiles w/ ME-3 back on
- 30Jul2009 : Hand fit to 23-Jul data. SIMU predictions
are still somewhat bounded in other fits--tough not as badly.
- 31Jul2009 : Residuals early estimates.
- 03Aug2009 : Found problem with Transfer plate fit and
with lack of cal information. Fits are much improved--but the Transfer Plate calibration
does not improve the fit.
- 04Aug2009 : Different PG approaches
for Transfer Lines.
- 05Aug2009 : After Xiaofeng retuned
lasers in 0T: profiles. Also determine that Dave's signs are wrong for
SLM ME+2/2
- 06Aug2009 : Tentative conclusion:
The deviations of the Cocoa fit from PG are not
primarily due to the variation in PG.
- 14Aug2009 : Bob discovered problems
with some of the profiles.
- 19Aug2009 : Residuals for new
Plus Endcap fit and Transfer line fits.
- 20Aug2009 : Profiles for 8-Aug, and a
problem found in the data stored in the database for one DCOPS.
- 21Aug2009 : Common runs and new
tools required.
- 25Aug2009 : Status of orienting DCOPS
- 27Aug2009 : Problems with
drawings.
- 28Aug2009 : Good run list as of
28-Aug-2009 16:00 (CERN) for Fall 2009 CRAFT.
Distances from DCOPS to DCOPS on transfer plate per the drawings.
- 30Aug2009 : Profiles for 1251259165, for
which the data in the DCOPS_NEW_DCOPS table is wrong.
- 01Sep2009 : Means for sample DCOPS as a
function of time.
- 08Sep2009 : Data for Plus IR Z sensors
for specified time intervals.
- 09Sep2009 : Transfer DCOPS line up. Still
problem with TL5 and with TL1 for Minus side.
- 11Sep2009 : PG positions of Ref DCOPS.
- 15Sep2009 : Transfer Line model (superceeded by real scan later)
- 17Sep2009 : Ignore this--bug found
- 18Sep2009 : Transfer plate positions as fit!??
- 21Sep2009 : Data quality studies for DCOPS
- 24Sep2009 : MAB models: general layout
- 01Oct2009 : MAB tilt angle Y definitions.
Spreadsheets for initial calculations
- 05Oct2009 : Z calculations
Cocoa hits 4GB limit. ME+2 data lost during Aug/Sep
- 07Oct2009 : Transfer plate center WRT
DCOPS target
- 08Oct2009 : Cocoa on 64-bit works!
Sample event posted for Oleg. No profiles.
- 09Oct2009 : PG for ME stations to
calculate disk positions
- 12Oct2009 : Spreadsheets for
calculating Z positions. Report for 13Oct Report for 16Oct
- 16Oct2009 : Deflections in Z
for ME+2/3 of field-on (Link event 61) wrt pre-CRAFT (Link event 32).
ME+1 PG seems inconsistent with Link sensor info.
- 20Oct2009 : Bogus tilts in ME1/2
were due to ASPD rotation bug. Fixed. Still not perfect agreement, but
not insane anymore.
- 22Oct2009 : More Z studies,
non-pre-blessing report for 23Oct.
- 23Oct2009 : Analog Z data vs
time for all stations. Files with raw analog values.
- 25Oct2009 : Z positions and phi_x
tilts for all chambers. ME-1/3 is an average estimate.
- 29Oct2009 : Report on Z-positions.
- 30Oct2009 : Fallen MAB DCOPS
profiles look still useful.
- 04Nov2009 : Review and correct ME-1 and ME+1 models.
Also TODO for SLM completion.
- 09Nov2009 :
- 10Nov2009 : ME+1 Z sensors
around the time of the MAB fall.
- 11Nov2009 :
- 17Nov2009 :
- 18Nov2009 : Residuals between different laser
fits O(350 μ) (and some are bad). Plots from 19-Nov-2009 run.
- 20Nov2009 :
- 21Nov2009 : Working model of transfer lines with
MABs as defined by link. Should be good for connecting MABs together and connecting to
endcap once we iterate to a conclusion.
- data Old DCOPS profiles and fit information.
Auxilliary programs ToDo and Done
These slides are presented here for the use of CMS collaborators; both
for quick communication during phone conferences and for archival
purposes. They refer to internal development work, and are not
intended for publication to the general public. As of this date none
of our collaborators are blind, and since none but our
collaborators are likely to benefit from reading them, I see no
purpose in making the postscript files accessible to the blind.
Please contact
jnbt@hep.physics.wisc.edu
if you have trouble accessing the information on this page.
