TWR
Calibration
TWR calibration constants
for event reconstruction is available. click
to get
The alphas and T0s are determined by fitting the distributions of le -
t_ref vs. 1/sqrt(Q).
Here the le is leading edge time determined by waveform information and
t_ref is reference time. Since we have no YAG data yet for the TWR
calibration, the calibrated times from muon daq are used for t_ref.
The betas are determined by searching the 1pe peak in the Q
distributions. An inverse of the 1pe peak value corresponds to the beta.
More detailed information can be found at my talk on the
AMANDA collaboration meeting at Madison.
Other constants
Time differences between TWR DAQ and MU
DAQ, which is measured by comparing the leading edge distrubitons of
those two DAQs. The format is "OM dt dt_err dt_sigma dt_sigma_error"
Pulse height for the single photo
electron, measured by TWR system. Pulse height is obtained by finding
maximum pulse height in the given waveform. The format is "OM mV/1pe"
2003. 10. 30.
Jiwoo Nam (University of California
Irvine)