Veto Counter test Hyupwoo Lee 2007/06/18. Setup – cable length test 2 scope setup - recall...
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Transcript of Veto Counter test Hyupwoo Lee 2007/06/18. Setup – cable length test 2 scope setup - recall...
![Page 1: Veto Counter test Hyupwoo Lee 2007/06/18. Setup – cable length test 2 scope setup - recall Cable_Length.SET using floppy disk Section # -> C02, C08, C14.](https://reader030.fdocuments.net/reader030/viewer/2022032522/56649d6c5503460f94a4bbec/html5/thumbnails/1.jpg)
Veto Counter test
Hyupwoo Lee2007/06/18
![Page 2: Veto Counter test Hyupwoo Lee 2007/06/18. Setup – cable length test 2 scope setup - recall Cable_Length.SET using floppy disk Section # -> C02, C08, C14.](https://reader030.fdocuments.net/reader030/viewer/2022032522/56649d6c5503460f94a4bbec/html5/thumbnails/2.jpg)
Setup – cable length test 2• scope setup - recall Cable_Length.SET using
floppy disk • Section # -> C02, C08, C14 • HV -> 1600V• # of events averaged-> 256 • Pannel #10 • PMT -> PMT77 Thorn • signal cable length for big pannel varies 323cm
(x1, x2, x3) • File names in compressed zip file i.e. p10_1_h16_C02_e256_x1.xls -> p(pannel#)_(PMT)_h(HV
in 100V)_s(section#)_e(# of events averaged)_x(# of connected calbles for big pannel's signal).xls
![Page 3: Veto Counter test Hyupwoo Lee 2007/06/18. Setup – cable length test 2 scope setup - recall Cable_Length.SET using floppy disk Section # -> C02, C08, C14.](https://reader030.fdocuments.net/reader030/viewer/2022032522/56649d6c5503460f94a4bbec/html5/thumbnails/3.jpg)
Cable length Test
• As cable goes longer, signals are distorted a little, but it seems OK.
• As timing, shifting the signal is roughly matched with cable delay(5.5ns/m)
• Roughly small signal shows the same feature only but amplitude
![Page 4: Veto Counter test Hyupwoo Lee 2007/06/18. Setup – cable length test 2 scope setup - recall Cable_Length.SET using floppy disk Section # -> C02, C08, C14.](https://reader030.fdocuments.net/reader030/viewer/2022032522/56649d6c5503460f94a4bbec/html5/thumbnails/4.jpg)
Signals vs. timeSection# : C08
- 14.000
- 12.000
- 10.000
- 8.000
- 6.000
- 4.000
- 2.000
0.000
2.000
- 200.0 - 150.0 - 100.0 - 50.0 0.0 50.0 100.0
Time(ns)
Volta
ge(
mV)
x1x2x3
Section# : C02
- 40.000
- 35.000
- 30.000
- 25.000
- 20.000
- 15.000
- 10.000
- 5.000
0.000
5.000
- 200.0 - 150.0 - 100.0 - 50.0 0.0 50.0 100.0
Time(ns)
Vo
ltag
e(m
V)
x1
x2x3
Section# : C14
- 4.500
- 4.000
- 3.500
- 3.000
- 2.500
- 2.000
- 1.500
- 1.000
- 0.500
0.000
0.500
- 200.0 - 150.0 - 100.0 - 50.0 0.0 50.0 100.0
Time(ns)
Vo
ltag
e(m
V)
x1x2x3
![Page 5: Veto Counter test Hyupwoo Lee 2007/06/18. Setup – cable length test 2 scope setup - recall Cable_Length.SET using floppy disk Section # -> C02, C08, C14.](https://reader030.fdocuments.net/reader030/viewer/2022032522/56649d6c5503460f94a4bbec/html5/thumbnails/5.jpg)
About position
Cable length x1
- 40.000
- 35.000
- 30.000
- 25.000
- 20.000
- 15.000
- 10.000
- 5.000
0.000
5.000
- 200.0 - 150.0 - 100.0 - 50.0 0.0 50.0 100.0
Time(ns)
Vo
ltag
e(m
V)
C14
C08
C02
Cable length x2
- 40.000
- 35.000
- 30.000
- 25.000
- 20.000
- 15.000
- 10.000
- 5.000
0.000
5.000
- 200.0 - 150.0 - 100.0 - 50.0 0.0 50.0 100.0
Time(ns)
Volta
ge(
mV
)
C14C08C02
Cable length x3
- 35.000
- 30.000
- 25.000
- 20.000
- 15.000
- 10.000
- 5.000
0.000
5.000
- 200.0 - 150.0 - 100.0 - 50.0 0.0 50.0 100.0
Time(ns)
Volta
ge(
mV)
C14C08C02
![Page 6: Veto Counter test Hyupwoo Lee 2007/06/18. Setup – cable length test 2 scope setup - recall Cable_Length.SET using floppy disk Section # -> C02, C08, C14.](https://reader030.fdocuments.net/reader030/viewer/2022032522/56649d6c5503460f94a4bbec/html5/thumbnails/6.jpg)
Peak amplitude vs. sections Total charge vs. sections
Peak
- 40
- 35
- 30
- 25
- 20
- 15
- 10
- 5
00 0.5 1 1.5 2 2.5 3 3.5
Cable length(x323cm)
Volta
ge
(mV)
C14C08C02
Total charge of s ignal
0
5
10
15
20
25
30
35
0 0.5 1 1.5 2 2.5 3 3.5
Cable length(x323cm)
Cha
rge
(pC
)
C14
C08
C02
![Page 7: Veto Counter test Hyupwoo Lee 2007/06/18. Setup – cable length test 2 scope setup - recall Cable_Length.SET using floppy disk Section # -> C02, C08, C14.](https://reader030.fdocuments.net/reader030/viewer/2022032522/56649d6c5503460f94a4bbec/html5/thumbnails/7.jpg)
Time characteristicPeak width (C08)
0
10
20
30
40
50
60
70
80
90
0 0.5 1 1.5 2 2.5 3 3.5
Cable length(x323cm)
Pea
k w
idth
(ns
)
10%
30%50%70%
Timing (C02)
0
10
20
30
40
50
60
70
80
90
100
0 0.5 1 1.5 2 2.5 3 3.5
Cable length(x323cm)
Volta
ge
(mV)
10% peak10% charge200fC
Timing (C08)
0
10
20
30
40
50
60
70
80
90
0 0.5 1 1.5 2 2.5 3 3.5
Cable length(x323cm)
Volta
ge
(mV)
10% peak10% charge200fC
Timing (C14)
0
10
20
30
40
50
60
70
80
90
100
0 0.5 1 1.5 2 2.5 3 3.5
Cable length(x323cm)
Volta
ge
(mV)
10% peak10% charge200fC
![Page 8: Veto Counter test Hyupwoo Lee 2007/06/18. Setup – cable length test 2 scope setup - recall Cable_Length.SET using floppy disk Section # -> C02, C08, C14.](https://reader030.fdocuments.net/reader030/viewer/2022032522/56649d6c5503460f94a4bbec/html5/thumbnails/8.jpg)
Setup – Timing test 1
• scope setup - recall timing.SET using floppy disk • Section varies C02, C08, C14 (#8 at center and #1 is the nearest se
ction to tested PMT) • HV -> 1600V• # of events for one data -> 1 • Pannel #10 • PMT -> PMT77 Thorn • signal cable length for big pannel -> 323cm • File names in compressed zip file i.e. p10_1_h16_s02_e32.xls -> p(pan
nel#)_(PMT)_h(HV in 100V)_(section#)_s(sample #).xls• 2 different DAQ method
- Taking waveform from scope (25 samples for each section)determine the timing 3 ways(slide #11).
- Using math func. in scope (80 samples for each section)
![Page 9: Veto Counter test Hyupwoo Lee 2007/06/18. Setup – cable length test 2 scope setup - recall Cable_Length.SET using floppy disk Section # -> C02, C08, C14.](https://reader030.fdocuments.net/reader030/viewer/2022032522/56649d6c5503460f94a4bbec/html5/thumbnails/9.jpg)
Timing Test
• Standard deviation of timing(signal’s falling edge to trigger’s falling edge) is ~10ns
• Signals are delayed by the length between hit position and PMT.
![Page 10: Veto Counter test Hyupwoo Lee 2007/06/18. Setup – cable length test 2 scope setup - recall Cable_Length.SET using floppy disk Section # -> C02, C08, C14.](https://reader030.fdocuments.net/reader030/viewer/2022032522/56649d6c5503460f94a4bbec/html5/thumbnails/10.jpg)
Problem with scope math func.
![Page 11: Veto Counter test Hyupwoo Lee 2007/06/18. Setup – cable length test 2 scope setup - recall Cable_Length.SET using floppy disk Section # -> C02, C08, C14.](https://reader030.fdocuments.net/reader030/viewer/2022032522/56649d6c5503460f94a4bbec/html5/thumbnails/11.jpg)
Timing
C02 C08 C14ave 75.936 64.548 65.928std 9.460923 9.226643 10.86476ave 75.85625 66.86088 55.73316std 9.621555 11.59667 14.60623
cable test ave 88.2 81 92.8
Timing - 10% peak (ns)
waveform
scope cal.
C02 C08 C14ave 70.712 61.964 53.416std 9.457463 10.13044 9.473282
cable test ave 77.2 70 68.6
Timing - 10% charge (ns)
waveform
C02 C08 C14ave 76.368 65.028 52.248std 8.921637 12.35993 9.2787
cable test ave 89 78 76.6
Timing - 200fC (ns)
waveform
1. 10% Peak – From 10% of signal’s minimum V to trigger signal
2. 10% Charge – From where accumulated charge reaches 10% of signal’s total charge to trigger signal
3. 200fC – From where accumulated charge reaches 200fC to trigger signal
![Page 12: Veto Counter test Hyupwoo Lee 2007/06/18. Setup – cable length test 2 scope setup - recall Cable_Length.SET using floppy disk Section # -> C02, C08, C14.](https://reader030.fdocuments.net/reader030/viewer/2022032522/56649d6c5503460f94a4bbec/html5/thumbnails/12.jpg)
Timing vs. Section
Timing vs. section
40
45
50
55
60
65
70
75
80
0 5 10 15
Section #C{}
Tim
e in
terv
al (
ns)
Scope func10% Peak10% Charge200fC
![Page 13: Veto Counter test Hyupwoo Lee 2007/06/18. Setup – cable length test 2 scope setup - recall Cable_Length.SET using floppy disk Section # -> C02, C08, C14.](https://reader030.fdocuments.net/reader030/viewer/2022032522/56649d6c5503460f94a4bbec/html5/thumbnails/13.jpg)
Plan for Future
• Take data with both PMTs(Add two signals from both PMTs)
• Measure the white noise level in various circumstances(w/ filter or attenuator)?
• FEB test for veto wall