Testbeam 2010 with CAPTAN System Jianchun Wang Syracuse University.
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Transcript of Testbeam 2010 with CAPTAN System Jianchun Wang Syracuse University.
Testbeam 2010 with
CAPTAN System
Jianchun Wang
Syracuse University
Telescope Setup
2
Courtesy:Ryan Rivera
Telescope Configuration
3
TypeThickness
(mm)Size
(mm2)HV Comment
Telescope N-type Si 300 ?16 x 2432 x 16
220
DUT
sCVD 500 4x 4 250 At 0, 10, & 20, HV scan at 20
MCZ Si 300 ? 16 x 24 500 0, threshold scan
Purdue 3D 200 8x8 40 3d_4e_wb5_8, failed
200 8x8 40 3d_2e_wb216_6, HV & threshold scan
285 8x8 40 3d_2e_wb5_2, HV & threshold scan
DUTYY
120 GeV proton beam
Scint
X
Z
Y
XX XXYY
a: –22 b: +22 a: +22b: –22b: 0, –10, –20
Lab frame
Pixel Planes
4
Y
X
Looking from
upstream
00
7
00
0
00
0
00
5
00
0
PlaneStation/Plaquette
Z (mm) CommentRyan Data
0 1/1 0/3 -43.4 Row/Y, as shown, rotated by a=+22
1 1/0 0/2 -42.6 Row/Y, flipped, 0 left-top, rotated by a=+22
2 0/0 0/0 -27.4 Row/X, as shown, rotated by b=–22
3 0/1 0/1 -26.6 Row/X, flipped, 0 right-top, rotated by b=–22
4 4/0 4/0 0 Row/X, as shown, rotated by b=0, –10, –20(for 3D 00 flipped down, for MCZ it is 2x3)
5 3/0 2/2 26.6 Row/X, as shown, rotated by b=+22
6 3/1 2/3 27.4 Row/X, flipped, 0 right-top, rotated by b=+22
7 2/1 2/1 42.6 Row/Y, as shown, rotated by a=–22
8 2/0 2/0 43.4 Row/Y, flipped, 0 left-top, rotated by a=–22
00
1
00
2
00
3
00
6
00
5
00
4
00
1
00
4
00
2
00
3
Row/Y
Row / X
Viewing with sensor in front
PSI46 Readout Chip
5
Ultra-black
black
lastDAC
C0 C1 A0 A1 A2 signal
CMS PSI46 readout chip Zero suppressed analog signals, serial
readout.
Double column logic.
Use 6 levels of analog signals for addressing
2 digs for double column: 0-25 (max 35).
3 digs for row x 2 column: 0-159 (max 215).
52 col80 row
98
00
mm
7900 mm
Sensor Geometry
6
Size (row) = 100x79+200 = 8100 mmSize (col) = 150x50+300x2 = 8100 mm
79787776
10
200 mm
100 mm
100 mm0 1 2 3 49 50 51
300 mm 150 mm 150 mm 300 mm
2X3 Module
Purdue 3D Sensors
7
CAPTAN System
8
PCB – Processing and Control Board
DCB – Data Conversion Board
PDB – Power Distribution Board
It is designed to be flexible to include other readout electronics.
Hit Data Format
9
Bit 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Byte 3 2 1 0
Item bit 7 6 5 4 3 2 1 0 15 14 13 12 11 10 9 8 19 18 17 16 7 6 5 4 3 2 1 0
Item Trigger Trigger Station
Bit 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32
Byte 7 6 5 4
Item bit 7 6 5 4 3 2 1 0 5 4 3 2 1 0 9 8 0 6 5 4 3 2 1 0 2 1 0 4 3 2 1
Item Adc Column Adc c Row plaquette Chip
Bit 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Byte before 4 5 6 7
Item bit 2 1 0 4 3 2 1 0 6 5 4 3 2 1 0 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
Item Plaquette Chip Row Column Adc
Bef
ore
Reo
rde
ring
Byt
es
Aft
er R
eord
erin
g B
ytes
Bit 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32
Byte before 0 1 2 3
Item bit 7 6 5 4 3 2 1 0 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Item Station Trigger
Hit Maps
10X in Plane Frame (mm)
Y in
Pla
ne F
ram
e (m
m)
X
Z/beam
Y/upLabframe
XZ
YPlaneframe
beam
Diamond DUTat 20
Cluster Size
11
Too many single pixel clusters. The resolution can not be as good as what was claimed.
Thresholds are not the same for different telescope planes.
Threshold needs to be further reduced.
Gain, threshold calibrations are not available yet.
Number of Pixels in a Cluster
Diamond DUT
Charge Distribution
12
Gain calibration need more work. Gain for diamond seems wrong.
This just give you an idea on how they work.
Charge (Ke)
Diamond DUT
DX
13X – X2 in Lab Frame (mm)
Center aligned, no angle alignment yet
DY
14Y – Y0 in Lab Frame (mm)
Form Raw Tracks
15
Number of Raw tracks Number of Hits Per Track
Track window is quite lose for two reasons:• Detectors are not aligned yet.• Want to include interaction tracks.
Summary
Different radiation hard sensors are tested: sCVD diamond, MCZ, 3D.
We are more interested in the diamond detector. Properties extracted from
this test beam will be important inputs to our upgrade simulation.
Get familiar with the CAPTAN system, get offline analysis package ready.
We may have our own detector tested with the system in near future.
16
PSI Signal and Addressing
17
For each hit pixel, the readout chip produces a signal at six levels.
The first five encode the pixel address.
The 6th represents the analog signal from the pixel.
The first two encode the double column address.
The next three encode the pixel address in that double column.
Most significant bit for the double column address (C0)
Least significant bit for the double column address (C0)
Least significant bit for the pixel address in the double column (A0)
Most significant bit for pixel address in the double column (A2)
A1
Analog signal from the pixel (data)
One pixel hit
18
CMS PLT Diamond Sensor
CMS PLD 500 um thick sCVD Physical size 4.7 x 4.7
19