The first look of the 22 strings data
I give you results from my first look of the 22 strings data.
I used data of run #10894 which is taken 1st, August, 2007 (PFFilt_PhysicsTrig_PhysicsFiltering_Run00108984_Level0_Part00000000.i3).
I used a script that was used for the 9 strings analysis.
(Thanks to Aya, providing me the script.)
Summary
Let me summarize at first.
Data seems to be mostly fine as far as I checked;) I will investigate the data in more detail.
1. Fundamental plots
start time. In total, 3000 s = 50 min.
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PMT gain distribution. Looks nice.
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2. First guess
cos(Zenith). There is a peak around 0.3.
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Azimuthal angle. Threre is two peaks.
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cos(Zenith) with #DOM>80 cut. The peak disappeared.
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Azimuthal angle with #DOM>80 cut. The peak disappeared, though we need more statistics.
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X position of the brightest cascades. There is a peak at 0,
but this is un-physical. This is same for position Y and Z.
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Y position of the brightest cascades
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Z position of the brightest cascades. The distribution is reflecting the dust layer.
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velocity of tracks
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3. Event base
hit DOM distribution. There is a gap at 80 DOMs. I think this is due to different trigger condition.
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LC triggered DOM distribution
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ATWD hit DOM distribution
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FADC hit DOM distribution
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total estimated Npe
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total estimated ATWD Npe
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total estimated FADC Npe
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total integrated ATWD charge
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total integrated FADC charge
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total (based) integrated charge
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4. ATWD channel base
ATWD amplitude distribution
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ATWD baseline. looks nice.
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ATWD integrated charge distribution
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ATWD estimated Npe
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ATWD occupancy vs OM ID
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hit position on X axis. uniformly distributed.
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hit position on Y axis. uniformly distributed. The peak is due to just
overlap of strings.
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hit position on Z axis. We see again the dust layer effect.
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5. FADC channel base
Well, these results are more or less same as ATWD ones.
FADC amplitude distribution
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FADC baseline. looks nice.
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FADC integrated charge distribution
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FADC estimated Npe
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FADC occupancy vs OM ID
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hit position on X axis. uniformly distributed.
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hit position on Y axis. uniformly distributed. The peak is due to just
overlap of strings.
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hit position on Z axis. We see again the dust layer effect.
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Keiichi Mase
Last modified: Mon Aug 20 17:45:19 JST 2007