DOMs Calibraion with Muons

1
DOMs Calibraion with Muons
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Total charge distribution
atwd ch2
Remove Baseline. From peak 4 left, 8 right
sum charge.
flasher
x100 pe
atwd ch1
muons?
x0.1pe
atwd ch0
x0.1pe
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Check1 Software coincidence
Looking for A hit in a close/far DOM within a
certain time window.
far
Close
Close doms Far doms
Time difference between hit in dom and in an
other one Peak on short times for close doms
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Total charge with 10000 ns coinc.
Close doms Far doms
Entries
x100 pe
x0.1 pe
Need very high statistics for software
coincidence. Only linearity runs are available,
with full readout. Combination of different runs
in different tempertaures
x0.1 pe
5
Total charge with 1000 ns coinc.
Close doms Far away doms
Entries
x100 pe
x0.1 pe
x0.1 pe
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Total charge with 100 ns coinc.
Close doms Far away doms
Entries
x0.1 pe
x0.1 pe
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Check2 No Glass (PMT)
Charge distribution on PMT with spe 60 sec run,
threshold575
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Check2 No Glass (PMT)
Charge distribution on PMT with no spe 60 sec
run, threshold775
Plots. Not ready yet
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A test might look like
Dom Mean(E8) Sigma(E8) a 5.4 1.95 c 5.
7 2.3 d 5.4 1.97 e 4.8 1.9 f 4.8 1.9
Each lineA dom No coinc
x0.1 pe
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different temperatures, Linearity 1 (2984,2752)
Sloth
Hot (2752 at 27o) Cold (2984 at -40o)
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Sloth
Hot (run at 27o) Cold (run at -40o)
Panther
Slote
q22.8e7 1.2q0 q23.5e70.844 q0
q1-2.3e6 0.92q0 q1-2.0e60.845 q0
q23.21e7 1.11q0 q23.90e70.76q0
q23.41e7 0.85q0 q23.26e71.02q0
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Panther same plots
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Panther/sl plots with spe
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SPTS case study. 9 doms, same temperature
Marten T1 Tomato U1 magnesium U2 cauliflower U5
Trinitrooluene T3
Scandium U4 Opposum T5 Penne T4 Linguineon T2
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To do
Simulation Calibration SPTS plots
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Integrted Voltage, Before pedestal correction
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What's that?!?!?!?
Green line from previous slide. Blue line -
moose
x0.1 pe
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Wave form, after pedestal
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A Wave form
ch2
Volts
1. Remove baseline 2. Find Peak 3. Integrate
charge (4lt-- Peak --gt8) 4. Calibrate units
Time (128 bins)
ch1
Volts
Time (128 bins)
ch0
Volts
Time (128 bins)
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Base Line
All dom average of pedestal run P3 Fit The
differnces between temp. are very small.
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Hot....Warm....Cold....Colder....
Red line_at_-40 c Black line_at_30 c
Moose
A good dom
Need normalization !! (different runs)
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M
Integrted Voltage, after pedestal correction
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Total charge on channel 0/ Total charge on
channel 1
Solution calibrate using spe peak in channel 1