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@PHDTHESIS{Lenkeit:288956,
author = {Lenkeit, Jan},
title = {{T}iming {C}alibration of the {T}rigger {S}ystem for the
{D}rift {T}ube {D}etector of the {OPERA} {N}eutrino
{O}scillation {E}xperiment},
issn = {1435-8085},
school = {Universität Hamburg},
type = {Dr.},
address = {Hamburg},
publisher = {Verlag Deutsches Elektronen-Synchrotron},
reportid = {PUBDB-2015-05197, DESY-THESIS-2015-048},
series = {DESY-THESIS},
pages = {160},
year = {2015},
note = {Universität Hamburg, Diss., 2015},
abstract = {The OPERA experiment searches for muon neutrino to tau
neutrino oscillations in an almost pure muon neutrino beam.
The goal is to observe the oscillations in appearance mode
by using a large-scale lead/emulsion target to resolve
individual tau neutrino interactions. Magnetic spectrometers
measure the charge and momentum of beam induced muons
leaving the target sections. The Precision Tracker, a drift
tube detector consisting of almost 10000 drift tubes,
provides the tracking information inside the spectrometers.
The coordinate measurement in the drift tubes is derived
from a time measurement relative to an external trigger
signal. In order to reach the required momentum resolution
of less than 25 $\%$ for particle momenta up to 25 GeV, the
uncertainty on the trigger timing must not exceed a value of
5 ns. In this thesis, a procedure for the timing calibration
of the trigger system is presented. A step-by-step
calibration of the corresponding signal paths is described.
Applying all calibration results, a spatial resolution of
255 µm is achieved for the Precision Tracker, meeting the
specified requirements. Furthermore, a method using the
calibrated trigger system for performing time of flight
measurements with atmospheric muons is developed. The
average error on the measured flight times is +-4.5 ns.},
cin = {UNI/EXP},
cid = {$I:(DE-H253)UNI_EXP-20120731$},
pnm = {613 - Matter and Radiation from the Universe (POF3-613)},
pid = {G:(DE-HGF)POF3-613},
experiment = {EXP:(DE-H253)OPERA-20150101},
typ = {PUB:(DE-HGF)29 / PUB:(DE-HGF)11},
doi = {10.3204/DESY-THESIS-2015-048},
url = {https://bib-pubdb1.desy.de/record/288956},
}