Performance Analysis of MRPC Telescopes in the EEE Project
Performance of MRPC telescopes
of the EEE Project
E. Bossini, C. Cicalò,
D. De Gruttola
,
I. Gnesi, M. Garbini, S. Grazzi, M.P. Panetta
EEE meeting
30/11/2016
time
resolution
spatial
resolution
beta ditributions
for all telescopes
(ongoing, not shown
here)
trending for
HV
and
currents
(ongoing, not shown here)
duty cycle by trending the
rate
(ongoing, not shown here)
writing (well advanced
, not shown here)
Status
EEE meeting
30/11/2016
2
time slewing correction
comparison between old and new analyzer
time slewing correction
comparison between old and new analyzer
strategy for the time slewing correction
understand all contributions
EEE meeting
30/11/2016
3
Time Over Threshold
TOT vs time to get
time
slewing
corrections
next
EEE meeting
30/11/2016
4
TOT
use the
mean
of distribution bin by bin (at the moment we use the mean of the profile)
clarify possible
reflections
(peaks in the TOT distribution)
apply
time slewing
correction and measure again the time resolution
apply correction
on single signals
(left and right)
rather than to the mean of TOT in a
chamber
TOT vs time to get
time
slewing
corrections
next
EEE meeting
30/11/2016
5
TOT
use the
mean
of distribution bin by bin (at the moment we use the mean of the profile)
clarify possible
reflections
(peaks in the TOT distribution)
apply
time slewing
correction and measure again the time resolution
apply correction
on single signals
(left and right)
rather than to the mean of TOT in a
chamber
TOT distributions (secondary peaks are visible
signal reflections?)
EEE meeting
30/11/2016
6
TOT
TOT vs strip
signal to investigate the possible dependece of reflections
EEE meeting
30/11/2016
7
TOT vs strip
s
t
r
i
p
s
i
g
n
a
l
f
r
o
m
c
l
u
s
t
e
r
TOT (ns)
y (cm)
top chamber
left side
TOT vs strip
signal to investigate the possible dependece of reflections
EEE meeting
30/11/2016
8
TOT vs strip
s
t
r
i
p
s
i
g
n
a
l
f
r
o
m
c
l
u
s
t
e
r
y (cm)
top chamber
right side
TOT (ns)
TOT vs strip
signal to investigate the possible dependece of reflections
EEE meeting
30/11/2016
9
TOT vs strip
s
t
r
i
p
s
i
g
n
a
l
f
r
o
m
c
l
u
s
t
e
r
y (cm)
mid chamber
left side
TOT (ns)
TOT vs strip
signal to investigate the possible dependece of reflections
EEE meeting
30/11/2016
10
TOT vs strip
s
t
r
i
p
s
i
g
n
a
l
f
r
o
m
c
l
u
s
t
e
r
y (cm)
mid chamber
right side
TOT (ns)
TOT vs strip
signal to investigate the possible dependece of reflections
EEE meeting
30/11/2016
11
TOT vs strip
s
t
r
i
p
s
i
g
n
a
l
f
r
o
m
c
l
u
s
t
e
r
TOT (ns)
y (cm)
bot chamber
left side
TOT vs strip
signal to investigate the possible dependece of reflections
EEE meeting
30/11/2016
12
TOT vs strip
s
t
r
i
p
s
i
g
n
a
l
f
r
o
m
c
l
u
s
t
e
r
TOT (ns)
y (cm)
bot chamber
left side
TOT distributions (secondary peaks are visible
signal reflections?)
TOT vs strip show
no dependence
on the strip
the effect seems to be slightly important in the mid chamber
is it correct to use the mean of TOT
1
and TOT
2
?
it should work, but taking reflections into account (NINO and electronic
chain) the
correction should be done
on single signals
(left and right)
to be done
EEE meeting
30/11/2016
13
TOT
comparison between old and new analyzer
difference to be understood
EEE meeting
30/11/2016
14
Time and spatial resolution
comparison between old and new analyzer
EEE meeting
30/11/2016
15
Time resolution
new Analyzer
(new)
χ
2
<5
(strip by strip calibration at CNAF)
old Analyzer
χ
2
<
10
(mean strips calibration at CNAF)
T
O
R
I
-
0
3
-
2
0
1
5
-
1
0
-
2
0
9
0
r
u
n
s
(
4
,
5
x
1
0
6
e
v
e
n
t
s
)
gaussian fit [-0.1;1.5] ns
official plot
at the moment
= 229 ps
= 207 ps
comparison between old and new analyzer (different sample)
EEE meeting
30/11/2016
16
Time resolution
new Analyzer
(new)
χ
2
<5
(strip by strip calibration at CNAF)
old Analyzer
χ
2
<
10
(mean strips calibration at CNAF)
T
O
R
I
-
0
3
-
2
0
1
6
-
0
4
-
2
6
1
0
r
u
n
s
(
4
x
1
0
5
e
v
e
n
t
s
)
gaussian fit [-0.1;1.5] ns
= 302 ps
= 245 ps
worsening (15-24%) of time resolution
due to different p and T conditions?
EEE meeting
30/11/2016
17
Time and spatial resolution
m
a
n
y
m
o
r
e
d
e
t
a
i
l
s
a
n
d
c
h
e
c
k
s
a
v
a
i
l
a
b
l
e
f
o
r
d
i
s
c
u
s
s
i
o
n
Detailed examination of the performance of MRPC telescopes in the EEE Project, focusing on topics such as time resolution, time slewing correction comparison, beta distributions, and Time Over Threshold strategy for time correction. The analysis involves understanding contributions, applying corrections, and investigating possible signal reflections. Progress updates from various meetings are discussed with a special emphasis on improving time resolution and correction methods.
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Presentation Transcript
Performance of MRPC telescopes of the EEE Project E. Bossini, C. Cical , D. De Gruttola, I. Gnesi, M. Garbini, S. Grazzi, M.P. Panetta EEE meeting 30/11/2016
Status time resolution time slewing correction comparison between old and new analyzer spatial resolution time slewing correction comparison between old and new analyzer beta ditributions for all telescopes (ongoing, not shown here) trending for HV and currents (ongoing, not shown here) duty cycle by trending the rate (ongoing, not shown here) writing (well advanced, not shown here) EEE meeting 2 30/11/2016
Time Over Threshold strategy for the time slewing correction understand all contributions EEE meeting 3 30/11/2016
TOT TOT vs time to get time slewing corrections next use the mean of distribution bin by bin (at the moment we use the mean of the profile) clarify possible reflections (peaks in the TOT distribution) apply time slewing correction and measure again the time resolution apply correction on single signals (left and right) rather than to the mean of TOT in a chamber EEE meeting 4 30/11/2016
TOT TOT vs time to get time slewing corrections next use the mean of distribution bin by bin (at the moment we use the mean of the profile) clarify possible reflections (peaks in the TOT distribution) apply time slewing correction and measure again the time resolution apply correction on single signals (left and right) rather than to the mean of TOT in a chamber EEE meeting 5 30/11/2016
TOT TOT distributions (secondary peaks are visible signal reflections?) EEE meeting 6 30/11/2016
TOT vs strip TOT vs strip signal to investigate the possible dependece of reflections y (cm) strip signal from cluster top chamber left side TOT (ns) EEE meeting 7 30/11/2016
TOT vs strip TOT vs strip signal to investigate the possible dependece of reflections y (cm) strip signal from cluster top chamber right side TOT (ns) EEE meeting 8 30/11/2016
TOT vs strip TOT vs strip signal to investigate the possible dependece of reflections y (cm) strip signal from cluster mid chamber left side TOT (ns) EEE meeting 9 30/11/2016
TOT vs strip TOT vs strip signal to investigate the possible dependece of reflections y (cm) strip signal from cluster mid chamber right side TOT (ns) EEE meeting 10 30/11/2016
TOT vs strip TOT vs strip signal to investigate the possible dependece of reflections y (cm) strip signal from cluster bot chamber left side TOT (ns) EEE meeting 11 30/11/2016
TOT vs strip TOT vs strip signal to investigate the possible dependece of reflections y (cm) strip signal from cluster bot chamber left side TOT (ns) EEE meeting 12 30/11/2016
TOT TOT distributions (secondary peaks are visible signal reflections?) TOT vs strip show no dependence on the strip the effect seems to be slightly important in the mid chamber is it correct to use the mean of TOT1 and TOT2? tL=tL tR=tR t =tL 2 *- f(TOTL) *- f(TOTR) *+tR - f TOTL+TOTR 2 * it should work, but taking reflections into account (NINO and electronic chain) the correction should be done on single signals (left and right) to be done EEE meeting 13 30/11/2016
Time and spatial resolution comparison between old and new analyzer difference to be understood EEE meeting 14 30/11/2016
Time resolution comparison between old and new analyzer TORI-03-2015-10-20 90 runs (4,5x 106events) gaussian fit [-0.1;1.5] ns official plot at the moment = 207 ps = 229 ps new Analyzer (new) 2<5 (strip by strip calibration at CNAF) old Analyzer 2<10 (mean strips calibration at CNAF) EEE meeting 15 30/11/2016
Time resolution comparison between old and new analyzer (different sample) TORI-03-2016-04-26 10 runs (4 x 105events) worsening (15-24%) of time resolution due to different p and T conditions? gaussian fit [-0.1;1.5] ns = 245 ps = 302 ps new Analyzer (new) 2<5 (strip by strip calibration at CNAF) old Analyzer 2<10 (mean strips calibration at CNAF) EEE meeting 16 30/11/2016
Time and spatial resolution many more details and checks available for discussion EEE meeting 17 30/11/2016
