RAW 22 strings data check

RAW (unfiltered) 22 string event check

  1. Studies for monopole filter raised a question that there is events which has small NDOM number (less than 80) but has large (larger than 1000) NPE as in the bottom in this Brian's page

As these events are new to EHE group as we have applied default filter of NDOM80 for last a couple of years, I'm also interested to check these event properties.

File Info
Run00108986_Subrun00000000_00000029
from pub:/data/exp/IceCube/2007/unbiased/PFRaw/0802/

Total number of events processed is 200388.



22 string Nch Distribution


The left plot should be compared with Brians plot.

The same plot but now NDOM less than 80 and NPE larger than 1000 cut is applied. Now we have 20 events left.



Channel-wise distribution study
ATWD and FADC baseline distributions

Channel-wise ATWD based NPE vs. ATWD amplitude

Channel-wise FADC based NPE vs. FADC amplitude

Channel-wise FADC based NPE vs. Channel-wise ATWD based NPE



Event Displays with the raw waveforms of the largest NPE entry is also shown, such that you can roughly convert ADC count to NPE by eye

NDOM is 75, NPE is 1045

NDOM is 15, NPE is 1115

NDOM is 10, NPE is 1490

NDOM is 37, NPE is 1180

NDOM is 27, NPE is 1020

NDOM is 37, NPE is 1090




One more confirmation, is this conclusion consistent with CORISKA by plots created by Keiichi.

CORSIKA 22 string Nch vs. NPE Distribution


CORSIKA 22 string Nch Distribution with and without logNPE larger than 3.0 cut