on behalf of SAMPA team and Norwegian group SAMPA linearity test results SAMPAmeeting 11032015 Gain and Peaking time Setup configuration Connecting a small ID: 172567
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Slide1
Sohail Musa Mahmoodon behalf of SAMPA team and Norwegian group
SAMPA linearity test results
SAMPAmeeting
11.03.2015Slide2
Gain and Peaking timeSetup configuration
Connecting a small capacitance in series with the input
cable
.
Applying
an input signal (square wave, ramp up/down, exponential rise/fall ).
Connecting
the
input signal
directly
to
the
detector
pads
.
Setting
the
configuration
of
the
analog chip.
Observe
the
differential
output at
the
corresponding
channel
. Slide3
Setup configurationSlide4
Gain ResultsSlide5
Gain ResultsSlide6
30mV/fC@160 ns - LinearitySlide7
20mV/fC@160 ns - LinearitySlide8
30mV/fC@160 ns (pos) – Linearity – all channelsSlide9
30mV/fC@160 ns (pos) – Linearity – mean valueSlide10
30mV/fC@160 ns (pos)- Linearity INLSlide11
30mV/fC@160 ns (neg) – Linearity All
channelsSlide12
30mV/fC@160 ns – LinearityINL – ALL CHANNELSSlide13
30mV/fC@160 ns (neg) – LinearityMEANSlide14
30mV/fC@160 ns (neg) – LinearityMEAN - INLSlide15
20mV/fC@160 ns (pos) – LinearityALL channelsSlide16
20mV/fC@160 ns (pos) – LinearityMEANSlide17
20mV/fC@160 ns (pos) – LinearityMEAN - INLSlide18
20mV/fC@160 ns (neg) – LinearityALL channelsSlide19
20mV/fC@160 ns (neg) – LinearityMEANSlide20
20mV/fC@160 ns (neg) – LinearityMEAN - INLSlide21
ConclusionLinearity seems to be good
.Some issues with the desired
gain
.
More
o
scillations
on
channel
1
than
other
channels
. (
tested
2 chips)
Some
more
linearity
results
for
the
chip 3 analog part (
only
for positive
configurations
)Slide22
On going work and future plansAnalysing
the results for statistical linearity measurements.
Preparing
the
setup
for first
irradition
tests
of
SAMPA MPW1.
Single-
Event
Latchup
tests
on
all
3 chips and Single
Event
Upset
tests
on
shift
registers (chip 3
).
Planning to
perform
the
first
irradiation
tests in
the
end
of
april in Uppsala (
together
with
RCU2 testing).Slide23
Thank you for your attention.Any questions ?