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@MASTERSTHESIS{Feindt:317731,
author = {Feindt, Finn},
othercontributors = {Garutti, Erika and Steinbrueck, Georg},
title = {{E}dge-{TCT} for the {I}nvestigation of {R}adiation
{D}amaged {S}ilicon {S}trip {S}ensors},
issn = {1435-8085},
school = {Universität Hamburg},
type = {MS},
address = {Hamburg},
publisher = {Verlag Deutsches Elektronen-Synchrotron},
reportid = {PUBDB-2017-00850, DESY-THESIS-2017-006},
series = {DESY-THESIS},
pages = {95},
year = {2017},
note = {Universität Hamburg, Masterarbeit, 2016},
abstract = {The edge Transient Current Technique (TCT) is a method for
the investigation of silicon sensors. This method requires
infrared light from a sub-ns pulsed laser to be focused to
aμm-size spot and scanned across the polished cut edge of a
sensor. Electron-hole pairs are generated along the light
beam in the sensor. These charge carriers drift in the
electric field and induce transient currents on the sensor
electrodes. The current transients are analyzed as a
function of the applied voltage, temperature, absorbed dose
and position of the laser-light focus, in order to determine
the the drift velocities, electric field and the charge
collection in the strip sensor.In the scope of this work, a
new edge-TCT setup is commissioned, a procedure for the
polishing of the cut edge is implemented and a method to
position the focus of the laserlight with respect to the
sensor is developed.First edge-TCT measurements are
performed on non-irradiated, 285 μm thick n-type strip
sensors, and the pulse shape and charge collection is
studied under different conditions.Furthermore, the prompt
current of the transients is extracted, which is the first
step towards the determination of the electric field. A new
method to measure the attenuation of light in silicon is
tested on a non-irradiated sensor and on sensors irradiated
with up to a1 MeV neutron equivalent fluence of 1.14 × 10
15 cm −2 , using laser light with a wavelength of 1052
nm.},
cin = {UNI/EXP / CMS},
cid = {$I:(DE-H253)UNI_EXP-20120731$ / I:(DE-H253)CMS-20120731},
pnm = {632 - Detector technology and systems (POF3-632)},
pid = {G:(DE-HGF)POF3-632},
experiment = {EXP:(DE-H253)LHC-Exp-CMS-20150101},
typ = {PUB:(DE-HGF)3 / PUB:(DE-HGF)29 / PUB:(DE-HGF)19},
doi = {10.3204/PUBDB-2017-00850},
url = {https://bib-pubdb1.desy.de/record/317731},
}