eprintid: 23689
rev_number: 16
eprint_status: archive
userid: 3405
dir: disk0/00/02/36/89
datestamp: 2017-11-13 09:47:31
lastmod: 2017-12-12 10:39:26
status_changed: 2017-11-13 09:47:31
type: doctoralThesis
metadata_visibility: show
creators_name: vom Bruch, Dorothea
title: Pixel Sensor Evaluation and Online Event Selection for the Mu3e Experiment
subjects: ddc-000
subjects: ddc-500
subjects: ddc-530
divisions: i-130200
adv_faculty: af-13
abstract: Despite having survived numerous experimental tests, the standard model of particle
physics is not a complete description of nature. The Mu3e experiment tests
theories beyond the standard model by searching for the lepton flavour violating decay
mu->eee, aiming at a branching ratio sensitivity of 2*10^-15 in a first phase
of the experiment.
A high precision magnetic spectrometer combined with scintillation detectors will
measure the momenta, vertices and timing of the decay products of 10^8 mu/s stopped
on a target.
In this work, a prototype of the high voltage monolithic active pixel sensor envisaged
for the spectrometer was characterised. With an efficiency >99% and a time
resolution of 14 ns, it meets the requirements imposed on the final sensor.
Furthermore, an online signal selection process was developed and implemented on
a graphics processing unit (GPU), keeping 98% of signal decays, while reducing the
data rate of 80 Gbit/s by a factor of 140; resulting in a rate that can be stored to
disk. With the computing performance achieved on the GPU, the selection process
can run on the hardware planned for the experiment.
Both the online selection and the silicon sensor are key aspects for the success of
Mu3e.
date: 2017
id_scheme: DOI
id_number: 10.11588/heidok.00023689
ppn_swb: 1657394255
own_urn: urn:nbn:de:bsz:16-heidok-236895
date_accepted: 2017-10-27
advisor: HASH(0x55a9a63451d8)
language: eng
bibsort: VOMBRUCHDOPIXELSENSO2017
full_text_status: public
citation:   vom Bruch, Dorothea  (2017) Pixel Sensor Evaluation and Online Event Selection for the Mu3e Experiment.  [Dissertation]     
document_url: https://archiv.ub.uni-heidelberg.de/volltextserver/23689/1/dissertation_Dorothea_vom_Bruch_2017.pdf