wire reconstruction

Reconstructed Wire Coordinates



The wire positions are reconstructed combining the information from:
1. x-ray wire coordinate measurement at JINR, Dubna
2. tube height measurement on the assembly table
3. RASNIK monitoring data: interlayer and multilayer
4. "Endmass"-measurements where available (interlayer and multilayer shifts)

=> distribution of interlayer parameters and multilayer parameters

Nominal grid:

y pitch=26.034 mm
z pitch=30.0349 mm
z shift=15.020 mm
ML distance=346.898 mm



R.M.S. of the deviation from the nominal grid:


rms_wires.gif rms_all.gif


The following table contains the R.M.S. values (rms-y, rms-z) which are plotted above.
Click on a link to see the deviations of the wire coordinates from the nominal geometry.

The last column gives the comparison with the cosmic ray measurements at the LMU test facility.

The computed CHAMBER ACCURACY, as well as the ACCURACY of LMU- and MPI-measurements
are given here for all chambers.

PLOTS PLOTS TABLES COMPARISON with LMU
all chambers together
CHAMBER
APIN		 CHAMBER
MPI_LOCAL		 HV-side
(rms-y, rms-z)		 RO-side
(rms-y, rms-z)		 comment (layer, tube, dz, dy) R.M.S.
(HV-y, HV-z, RO-y, RO-z)
053

MPI004 (BOS2C06):
renamed BOS406

 ( 16 , 11 ) ( 12 , 15 ) - HV , RO (26, 17; 29, 20)
054

MPI005 (BOS2C08):
renamed BOS2C16

( 20 , 16 ) ( 16 , 19 ) - HV , RO
055

MPI006 (BOS2C10):

( 14 , 8 ) ( 12 , 12 ) - HV , RO
056

MPI007 (BOS2C16):
renamed BOS2C08

 ( 16 , 15 ) ( 12 , 15 ) - HV , RO (34, 17; 25, 17)
057

MPI008 (BOS3C02):

( 24 , 11 ) ( 14 , 19 ) - HV , RO (37, 11; 24, 23)
058

MPI009 (BOS3C04):
renamed BOSXCR3

 ( 35 , 29 ) ( 34 , 55 ) RASSAS correction on the RO-side:
Dz(ML)=-Dz(ML)		 HV , RO (36, 17; 37, 16)
059

MPI010 (BO3C06):

( 66 , 34 ) ( 42 , 11 ) after repair HV , RO (28, 36; 47, 58)
060

MPI011 (BOS3C08):

( 20 , 9 ) ( 13 , 14 ) ML-angle, not seen by RASSAS HV , RO (46, 14; 33, 19)
061

MPI012 (BOS3C10):
renamed BOS3C04

( 18 , 10 ) ( 28 , 50 ) real z-shifts of ini2 & inv2,
see loogbook p.84 		HV , RO (27, 13; 35, 36)
062

MPI013 (BOS3C16):
renamed BOSXCR2

 ( 16 , 14 ) ( 31 , 11 ) ML-distance
underestimated by RASSAS 		HV , RO (49, 16; 22, 27)
063

MPI014 (BOS4C02):

( 18 , 9 ) ( 30 , 17 ) - HV , RO (28, 11; 39, 22)
064

MPI015 (BOS4C04):

( 32 , 9 ) ( 17 , 37 ) z-shift disagreements HV , RO (37, 14; 23, 35)
065

MPI016 (BOS4C06):
renamed BOSXCR4

 ( 17 , 11 ) ( 14 , 12 ) big ML distance
measured at LMU;
detached multilayer 		HV , RO (28, 12; 200, 50)
066

MPI017 (BOS4C08):

( 20 , 7 ) ( 13 , 6 ) - HV , RO (43, 17; 37, 16)
067

MPI018 (BOS4C10):
renamed BOS2C06

 ( 20 , 10 ) ( 11 , 7 ) - HV , RO (39, 14; 37, 13)
068

MPI019 (BOS4C16):

( 14 , 6 ) ( 15 , 11 ) - HV , RO (26, 15; 31, 13)
069

MPI020 (BOS5C02):

( 12 , 14 ) ( 15 , 14 ) - HV , RO (32, 12; 25, 11)
070

mpi021 (BOS5C04):

( 15 , 10 ) ( 16 , 13 ) - HV , RO (23, 10; 22, 11)
071

MPI022 (BOS5C06):
renamed BOS1C02

 ( 14 , 8 ) ( 15 , 8 ) - HV , RO (29, 12; 26, 11)
072

MPI023 (BOS5C08):

( 14 , 7 ) ( 16 , 8 ) - HV , RO (24, 15; 22, 11)
073

MPI024 (BOS5C10):

( 15 , 7 ) ( 13 , 9 ) - HV , RO (26, 14; 23, 12)
074

MPI025 (BOS5C16):

( 12 , 15 ) ( 18 , 11 ) large interlayer dist. ??? HV , RO (35, 16; 55, 15)
045

MPI026 (BOS1C02):
renamed BOS5C06

 ( 14 , 18 ) ( 15 , 17 ) - HV , RO (22, 17; 21, 17)
046

MPI027 (BOS1C04):

( 19 , 9 ) ( 21 , 10 ) - HV , RO (23, 14; 24, 14)
047

MPI028 (BOS1C06):

( 19 , 13 ) ( 16 , 12 ) - HV , RO (18, 14; 20, 12)
049

MPI029 (BOS1C10):

( 13 , 11 ) ( 20 , 10 ) - HV , RO (21, 16; 27, 13)
050

MPI030 (BOS1C16):

( 13 , 10 ) ( 14 , 10 ) - HV , RO (38, 19; 39, 17)
081

MPI031 (BOF1C12):

( 16 , 10 ) ( 16 , 9 ) - HV , RO (31, 16; 27, 13)
082

MPI032 (BOF1C14):

( 15 , 9 ) ( 13 , 9 ) - HV , RO (39, 15; 40, 14)
001

MPI033 (BOS1A02):

( 24 , 19 ) ( 17 , 8 ) - HV , RO (23, 19; 28, 11)
002

MPI034 (BOS1A04):

( 16 , 12 ) ( 21 , 9 ) - HV , RO (27, 17; 25, 14)
003

MPI035 (BOS1A06):
renamed BOSXAR2

 ( 17 , 7 ) ( 13 , 9 ) ML shift HV , RO (25, 46; 27, 19)
005

MPI036 (BOS1A10):

( 16 , 16 ) ( 19 , 8 ) - HV , RO (30, 17; 24, 13)
006

MPI037 (BOS1A16):

( 15 , 9 ) ( 19 , 9 ) - HV , RO (21, 16; 22, 10)
007

MPI038 (BOS2A02):

( 17 , 8 ) ( 20 , 13 ) - HV , RO (37, 16; 36, 15)
008

MPI039 (BOS2A04):

( 387 , 28 ) ( 451 , 15 ) Rassas4 mask loose
not correctable		 HV , RO (50, 28; 22, 18)
009

MPI040 (BOS2A06):

( 19 , 18 ) ( 15 , 12 ) - HV , RO (22, 15; 25, 18)
010

MPI041 (BOS2A08):

( 16 , 9 ) ( 18 , 7 ) - HV , RO (22, 16; 26, 8)
011

MPI042 (BOS2A10):

( 16 , 8 ) ( 19 , 8 ) - HV , RO (22, 16; 25, 18)
012

MPI043 (BOS2A16):

( 17 , 18 ) ( 22 , 18 ) - HV , RO (26, 15; 23, 16)
013

MPI044 (BOS3A02):

( 19 , 10 ) ( 22 , 13 ) - HV , RO (32, 15; 31, 10)
014

MPI045 (BOS3A04):

( 19 , 18 ) ( 24 , 18 ) - HV , RO (28, 14; 28, 16)
015

MPI046 (BOS3A06):

( 19 , 17 ) ( 22 , 12 ) - HV , RO (31, 14; 26, 10)
016

MPI047 (BOS3A08):

( 20 , 16 ) ( 24 , 18 ) - HV , RO (28, 13; 30, 18)
017

MPI048 (BOS3A10):

( 14 , 13 ) ( 141 , 12 ) problems with ass4 & ass2
see loogbook p.47		 HV , RO (27, 16; 43, 15)
018

MPI049 (BOS3A16):

( 23 , 15 ) ( 29 , 16 ) - HV , RO (27, 10; 27, 14)
019

MPI050 (BOS4A02):

( 16 , 18 ) ( 25 , 20 ) - HV , RO (29, 18; 33, 21)
020

MPI051 (BOS4A04):

( 25 , 20 ) ( 35 , 20 ) - HV , RO (33, 16; 36, 17)
021

MPI052 (BOS4A06):

( 21 , 28 ) ( 22 , 24 ) - HV , RO (22, 27; 27, 21)
022

MPI053 (BOS4A08):

( 21 , 22 ) ( 17 , 21 ) - HV , RO (29, 19; 32, 24)
023

MPI054 (BOS4A10):

( 18 , 22 ) ( 21 , 22 ) - HV , RO (30, 17; 26, 19)
024

MPI055 (BOS4A16):

( 18 , 17 ) ( 17 , 19 ) - HV , RO (23, 14; 23, 11)
025

MPI056 (BOS5A02):

( 20 , 19 ) ( 22 , 19 ) LMU: big y-spread in a layer HV , RO (40, 14; 38, 17)
026

MPI057 (BOS5A04):

( 23 , 16 ) ( 22 , 12 ) - HV , RO (27, 13; 24, 12)
027

MPI058 (BOS5A06):

( 23 , 17 ) ( 19 , 22 ) - HV , RO (24, 15; 26, 16)
028

MPI059 (BOS5A08):

( 73 , 21 ) ( 28 , 17 ) wrong RASNIK angle and ML-distance HV , RO (50, 23; 28, 13)
029

MPI060 (BOS5A10):

( 19 , 21 ) ( 25 , 25 ) - HV , RO (30, 16; 27, 19)
030

MPI061 (BOS5A16):

( 21 , 28 ) ( 22 , 25 ) - HV , RO (29, 26; 26, 20)
037

MPI062 (BOF1A12):

( 21 , 19 ) ( 19 , 23 ) - HV , RO (32, 15; 33, 22)
038

MPI063 (BOF1A14):

( 27 , 24 ) ( 20 , 22 ) LMU: big y-spread in a layer HV , RO (42, 31; 40, 29)
039

MPI064 (BOF3A12):

( 16 , 9 ) ( 16 , 10 ) - HV , RO (24, 13; 21, 14)
083

MPI065 (BOF3C12):

( 15 , 7 ) ( 20 , 9 ) - HV , RO (23, 12; 22, 14)
040

MPI066 (BOF3A14):

( 18 , 8 ) ( 20 , 9 ) - HV , RO
084

MPI067 (BOF3C14):

( 58 , 12 ) ( 16 , 17 ) layer2 tilted,
glue pieces on the comb 		HV , RO (31, 23; 24, 25)
048

MPI068 (BOS1C08):

( 13 , 13 ) ( 21 , 15 ) - HV , RO
085

MPI069 (BOF5C12):
renamed BOSXCR5

 ( 22 , 26 ) ( 22 , 10 ) - HV , RO
086

MPI070 (BOF5C14):

( 15 , 21 ) ( 15 , 15 ) - HV , RO (30, 18; 25, 14)
004

MPI071 (BOF1A08):
renamed BOSXAR4

 ( 17 , 22 ) ( 17 , 17 ) - HV , RO (33, 19; 22, 15)
041

MPI072 (BOF5A12):

( 17 , 21 ) ( 15 , 20 ) - HV , RO (31, 14; 29, 19)
042

MPI073 (BOF5A14):

( 21 , 12 ) ( 19 , 14 ) - HV , RO (28, 14; 28, 14)
043

MPI074 (BOF7A12):
renamed BOSXAR5

 ( 28 , 8 ) ( 24 , 9 ) - HV , RO
044

MPI075 (BOF7A14):
renamed BOSXAR6

 ( 25 , 19 ) ( 26 , 16 ) - HV , RO
087

MPI076 (BOF7C12):
renamed BOSXCR7

 ( 15 , 17 ) ( 13 , 21 ) - HV , RO
088

MPI077 (BOF7C14):
renamed BOSXCR6

 ( 17 , 29 ) ( 13 , 21 ) - HV , RO
031

MPI078 (BOS6A02):

( 14 , 10 ) ( 32 , 13 ) - HV , RO (21, 14; 18, 20)
036

MPI079 (BOS6A16):
renamed BOS6C08

 ( 21 , 60 ) ( 21 , 9 ) - HV , RO (26, 33; 26, 17)
033

MPI080 (BOS6A06):
renamed BOS6A10

 ( 23 , 17 ) ( 34 , 9 ) - HV , RO (28, 18; 33, 13)
035

MPI081 (BOS6A10):
renamed BOS6A06

 ( 17 , 30 ) ( 23 , 10 ) - HV , RO
034

MPI082 (BOS6A08):
renamed BOS6A16

 ( 17 , 12 ) ( 21 , 10 ) - HV , RO
032

MPI083 (BOS6A04):

( 22 , 8 ) ( 33 , 7 ) - HV , RO (24, 13; 31, 16)
075

MPI084 (BOS6C02):
renamed BOS6C10

 ( 18 , 8 ) ( 14 , 7 ) - HV , RO
076

MPI085 (BOS6C04):
renamed BOS6C16

 ( 20 , 12 ) ( 14 , 8 ) - HV , RO
077

MPI086 (BOS6C06):

( 13 , 18 ) ( 19 , 7 ) - HV , RO (21, 21; 22, 17)
078

MPI087 (BOS6C08):

( 14 , 15 ) ( 15 , 7 ) - HV , RO (19, 19; 21, 16)
079

MPI088 (BOS6C10):
renamed BOS6C02

 ( 27 , 14 ) ( 36 , 28 ) wrong SAG adjustment at LMU HV , RO (22, 17; 28, 29)
080

MPI089 (BOS6C16):
renamed BOS6C04

 ( 132 , 8 ) ( 110 , 9 ) ~0.250 mm bigger ML-distance
due to the spacer deformation 		HV , RO (28, 14; 24, 12)
089

MPI090 (BOSXAR1):

( 31 , 23 ) ( 40 , 27 ) - HV , RO (33, 17; 28, 20)
090

MPI091 (BOSXAR2):
renamed BOS1A06

 ( 25 , 19 ) ( 28 , 16 ) - HV , RO (35, 13; 30, 13)
091

MPI092 (BOSXCR1):

( 22 , 24 ) ( 20 , 26 ) - HV , RO (35, 13; 30, 32)
097

MPI093 (BOSXAR3):

( 19 , 21 ) ( 17 , 24 ) - HV , RO
093

MPI094 (BOSXCR2):
renamed BOS3C16

 ( 36 , 8 ) ( 16 , 10 ) - HV , RO
094

MPI095 (BOSXCR3):
renamed BOS3C10

 ( 20 , 8 ) ( 21 , 8 ) - HV , RO
095

MPI096 (BOSXCR4):
renamed BOS4C10

 ( 15 , 7 ) ( 27 , 8 ) - HV , RO
096

MPI097 (BOSXCR5):
renamed BOF5C12
097

MPI098 (BOSXAR4):
renamed BOS1A08
098

MPI099 (BOSXAR5):
renamed BOF7A12
099

MPI100 (BOSXAR6):
renamed BOF7A14
100

MPI101 (BOSXCR6):
renamed BOF7C14
101

MPI102 (BOSXCR7):
renamed BOF7C12

 


Comparison with X-Tomograph results

Wire coordinates for about 20% of the chambers have been measured at the X-Tomograph facility at CERN.

The following table shows the R.M.S. of the differences between
the reconstructed and the measured (real) wire coordinates.
Average R.M.S. value for y-coordinate is ~19 microns, and for the z-coordinate ~15 microns.

Click on a link to see the plot for a given chamber.

Chamber HV (y,z) RO (y,z) CUTOUT (y,z) Remarks: Link to the X-Tomograph
measurement results

MPI005 (BOS2C08):
renamed BOS2C16

(15,12) (18,13) - - July 2001

MPI006 (BOS2C10):

(20,10) (13,12) - - May 2001

MPI009 (BOS3C04):
renamed BOSXCR3

 (37,16) (23,19) - big ML z-shifts;
RASSAS correction on the RO-side:
Dz(ML)=-Dz(ML)		 September 2003

MPI010 (BOS3C06):

(11,19) (25,14) - before the repair September 2001

- || -

(20,22) (27,41) - after the repair
0.100 mm added to MPI_MLdist + 100 mu 		March 2003

MPI012 (BOS3C10):
renamed BOS3C04

 (17,16) (24,29) - big z-shifts between the layers March 2004

MPI013 (BOS3C16):
renamed BOSXCR2

 (73,30) (34,23) - big angles between the layers September 2003

MPI016 (BOS4C06):
renamed BOSXCR4

(19,14) (218,54) - detached multilayer, reinforced August 2003

MPI019 (BOS4C16):

(12, 9) (24,15) - RO side : 6 tubes outside 3*sigma region
excluded from analysis 		January 2002

MPI029 (BOS1C10):

(14,15) (21, 8) - - January 2003

MPI030 (BOS1C16):

(12,15) (12,13) - - July 2002

MPI032 (BOF1C14):

 (15,16) (13,11) - January 2005

MPI035 (BOS1A06):
renamed BOSXAR2

 (31,33) (20,28) - reinforced; big ML z-shifts September 2003

MPI039 (BOS2A04):

(158, 32) (440, 24) - Rassas mask loose,
not correctable 		September 2003

MPI049 (BOS3A16):

(17,14) (19,12) - - November 2002

MPI057 (BOS5A04):

(17,12) (18,20) - - April 2003

MPI059 (BOS5A08):

(118,24) (26,10) - wrong RASNIK angle and ML-distance November 2003

MPI064 (BOF3A12):

(15,10) (18,14) - - August 2003

MPI068 (BOS1C08):

(13, 8) (17, 8) - - November 2003

MPI073 (BOS5A14):

(13,10) (24,11) - - February 2004

MPI074 (BOF7A12):

(20,10) (19,13) - - February 2004

MPI078 (BOS6A02):

(17,16) (17,22) (19,18) deviation from MPI measurememnts;
cutout layer by layer: ( y-coordinates , z-coordinates) 		May 2004

- || -

(16,10) (36,19) (20,12) deviation from the nominal geometry;
cutout layer by layer: ( y-coordinates , z-coordinates)

MPI080 (BOS6A06):
renamed BOS6A10

 (18,16) (25,10) (20,17) deviation from MPI measurememnts;
cutout layer by layer: ( y-coordinates , z-coordinates) 		October 2004

- || -

(16,14) (22, 8) (16,16) deviation from the nominal geometry;
cutout layer by layer: ( y-coordinates , z-coordinates)

MPI091 (BOSXAR2):
renamed BOS1A06

 (19,14) (24,15) - - June 2003

 


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Last update January 26th, 2007
sandra@mppmu.mpg.de