Tracker Geometry

Oleg LysenkoOleg Lysenko

University of ChicagoUniversity of Chicago

December 15, 2011December 15, 2011

2

MICE tracker geometry schema (Tracker)

Position and rotation in solenoid reference frame

3

MICE tracker geometry schema (Station)

Position and rotation in tracker reference frame Porridge = glue (polystyrene) + fibres

4

NIM paper

Plane Order as Built

5

‘U’ Plane

‘W’ Plane

‘V’ Plane

ztr

ztr

ytr

xtr

6

MICE tracker geometry schema (Doublet layer)

7

Relational tables

Id SciFiGeoStnId SciFiGeoTrkr1 1 12 2 13 3 14 4 15 5 16 6 27 7 28 8 29 9 210 10 2

SciFiStn2Trkr Id SciFiGeoDbl SciFiGeoStnId1 1 12 2 13 3 14 1 25 2 26 3 27 1 38 2 39 3 310 1 411 2 412 3 413 1 514 2 515 3 51 1 62 2 63 3 64 1 75 2 76 3 77 1 88 2 89 3 810 1 911 2 912 3 913 1 1014 2 1015 3 10

SciFiDbl2Stn

Summary

8

ztr12345

12345

200 mm

250 mm

300 mm

350 mm

1130 mm

V

W

X

View of the station onto the polished face of the connector

Ytr

Xtr

Tracker reference frame

Ztr

1 2 3 4 5

Tracker 1 Tracker 2

targetEMR

5 4 3 2 1

observer

Ymice

Zmice

MICE reference frame

Xmice

Tracker 2 Tracker 1

x

x

x V

W

X

+120º

-120º

0º

Notes:1.The plane orientation is shown in the tracker reference frame (left down corner).2.The tracker alignment in MICE is shown in the MICE reference frame (above).

9

Calibration

IndexBoard#

(per tracker)Bank#

(per board)Channel#(per bank)

Pedestal(ADC)

Gain(ADC)

Pedestal(TDC)

Slope(TDC)

0 0 0 0 -1 0 25 2

1 0 0 1 -1 0 25 2

2 0 0 2 -1 0 25 2

4 0 0 3 -1 0 25 2

… … … … … … … …

2048 4 0 0 26.5 11.0 25 2

2049 4 0 1 24.5 11.0 25 2

2050 4 0 2 25.5 10.67 25 2

2051 4 0 3 24.5 11.0 25 2

2052 4 0 4 25.5 11.0 25 2

… … … … … … … …

4092 7 3 124 -1 -1 25 2

4093 7 3 125 -1 -1 25 2

4094 7 3 126 -1 -1 25 2

4095 7 3 127 -1 -1 25 2

The server and python client api code to read and write calibration data about the tracker to the config db are now ready for user testing (Antony).