HitSpooling: an improvement for the supernova neutrino detection system in icecube
The IceCube Neutrino Observatory consists of a lattice of 5160 photomultiplier tubes (PMTs) which monitor one cubic kilometer of deep Antarctic ice at the geographic South Pole. IceCube was primarily designed to detect neutrinos of energies greater than O(100 GeV). Due to subfreezing ice temperature...
Main Author: | |
---|---|
Other Authors: | , , , , |
Format: | Doctoral or Postdoctoral Thesis |
Language: | English |
Published: |
Universite Libre de Bruxelles
2015
|
Subjects: | |
Online Access: | http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/209179 https://dipot.ulb.ac.be/dspace/bitstream/2013/209179/1/50543006-bfb4-431b-ad41-da73ba503e9b.txt |
id |
ftunivbruxelles:oai:dipot.ulb.ac.be:2013/209179 |
---|---|
record_format |
openpolar |
spelling |
ftunivbruxelles:oai:dipot.ulb.ac.be:2013/209179 2023-05-15T13:37:30+02:00 HitSpooling: an improvement for the supernova neutrino detection system in icecube Heereman von Zuydtwyck, David Hanson, Kael Chamel, Nicolas Köpke, Lutz De Lentdecker, Gilles De Clercq, Catherine 2015-07-13 1 full-text file(s): application/pdf http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/209179 https://dipot.ulb.ac.be/dspace/bitstream/2013/209179/1/50543006-bfb4-431b-ad41-da73ba503e9b.txt en eng Universite Libre de Bruxelles Université libre de Bruxelles, Faculté des Sciences – Physique, Bruxelles local/bictel.ulb.ac.be:ULBetd-06082015-195923 local/ulbcat.ulb.ac.be:1086106 https://dipot.ulb.ac.be/dspace/bitstream/2013/209179/1/50543006-bfb4-431b-ad41-da73ba503e9b.txt http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/209179 1 full-text file(s): info:eu-repo/semantics/openAccess Physique Supernovae Neutrinos icecube neutrino supernova hitspool info:eu-repo/semantics/doctoralThesis info:ulb-repo/semantics/doctoralThesis info:ulb-repo/semantics/openurl/vlink-dissertation 2015 ftunivbruxelles 2022-06-29T22:19:55Z The IceCube Neutrino Observatory consists of a lattice of 5160 photomultiplier tubes (PMTs) which monitor one cubic kilometer of deep Antarctic ice at the geographic South Pole. IceCube was primarily designed to detect neutrinos of energies greater than O(100 GeV). Due to subfreezing ice temperatures, the photomultipliers' dark noise rates are particularly low which enables IceCube to search for neutrinos from galactic supernovae by detecting bursts of MeV neutrinos emitted during the core collapse and for several seconds following. For that purpose, a dedicated online supernova DAQ system records the total number of hits in the detector, without any further information from the PMTs, and generates supernova candidate triggers in case of a significant detector rate enhancement. A new feature to the standard DAQ, called HitSpooling, was implemented in IceCube during this thesis. The HitSpooling system is implemented in the standard DAQ system and buffers the complete raw data stream of the photomultipliers for several hours or days. By reading out time periods of HitSpool data around supernova candidate triggers, generated by the online supernova DAQ system, we overcome the limitations of the latter and have access to the entire information of the detector in case of a supernova. Furthermore, HitSpool data is a powerful source for studying and understanding the noise behavior of the detector as well as background processes coming from atmospheric muons. The idea of HitSpooling was developed in the scope of this thesis and is the basis of the work at hand. The developed interface between the standard DAQ and the supernova DAQ system is presented. The correlated dark noise component in optical modules of IceCube is quantified for the first time and possible explanations are discussed. The possibility of identifying triggering and subthreshold atmospheric muons in HitSpool data and subtracting them from a possible supernova signal is analyzed. Furthermore, the conversion from HitSpool data to supernova DAQ type data ... Doctoral or Postdoctoral Thesis Antarc* Antarctic South pole South pole DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) Antarctic South Pole |
institution |
Open Polar |
collection |
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) |
op_collection_id |
ftunivbruxelles |
language |
English |
topic |
Physique Supernovae Neutrinos icecube neutrino supernova hitspool |
spellingShingle |
Physique Supernovae Neutrinos icecube neutrino supernova hitspool Heereman von Zuydtwyck, David HitSpooling: an improvement for the supernova neutrino detection system in icecube |
topic_facet |
Physique Supernovae Neutrinos icecube neutrino supernova hitspool |
description |
The IceCube Neutrino Observatory consists of a lattice of 5160 photomultiplier tubes (PMTs) which monitor one cubic kilometer of deep Antarctic ice at the geographic South Pole. IceCube was primarily designed to detect neutrinos of energies greater than O(100 GeV). Due to subfreezing ice temperatures, the photomultipliers' dark noise rates are particularly low which enables IceCube to search for neutrinos from galactic supernovae by detecting bursts of MeV neutrinos emitted during the core collapse and for several seconds following. For that purpose, a dedicated online supernova DAQ system records the total number of hits in the detector, without any further information from the PMTs, and generates supernova candidate triggers in case of a significant detector rate enhancement. A new feature to the standard DAQ, called HitSpooling, was implemented in IceCube during this thesis. The HitSpooling system is implemented in the standard DAQ system and buffers the complete raw data stream of the photomultipliers for several hours or days. By reading out time periods of HitSpool data around supernova candidate triggers, generated by the online supernova DAQ system, we overcome the limitations of the latter and have access to the entire information of the detector in case of a supernova. Furthermore, HitSpool data is a powerful source for studying and understanding the noise behavior of the detector as well as background processes coming from atmospheric muons. The idea of HitSpooling was developed in the scope of this thesis and is the basis of the work at hand. The developed interface between the standard DAQ and the supernova DAQ system is presented. The correlated dark noise component in optical modules of IceCube is quantified for the first time and possible explanations are discussed. The possibility of identifying triggering and subthreshold atmospheric muons in HitSpool data and subtracting them from a possible supernova signal is analyzed. Furthermore, the conversion from HitSpool data to supernova DAQ type data ... |
author2 |
Hanson, Kael Chamel, Nicolas Köpke, Lutz De Lentdecker, Gilles De Clercq, Catherine |
format |
Doctoral or Postdoctoral Thesis |
author |
Heereman von Zuydtwyck, David |
author_facet |
Heereman von Zuydtwyck, David |
author_sort |
Heereman von Zuydtwyck, David |
title |
HitSpooling: an improvement for the supernova neutrino detection system in icecube |
title_short |
HitSpooling: an improvement for the supernova neutrino detection system in icecube |
title_full |
HitSpooling: an improvement for the supernova neutrino detection system in icecube |
title_fullStr |
HitSpooling: an improvement for the supernova neutrino detection system in icecube |
title_full_unstemmed |
HitSpooling: an improvement for the supernova neutrino detection system in icecube |
title_sort |
hitspooling: an improvement for the supernova neutrino detection system in icecube |
publisher |
Universite Libre de Bruxelles |
publishDate |
2015 |
url |
http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/209179 https://dipot.ulb.ac.be/dspace/bitstream/2013/209179/1/50543006-bfb4-431b-ad41-da73ba503e9b.txt |
geographic |
Antarctic South Pole |
geographic_facet |
Antarctic South Pole |
genre |
Antarc* Antarctic South pole South pole |
genre_facet |
Antarc* Antarctic South pole South pole |
op_relation |
local/bictel.ulb.ac.be:ULBetd-06082015-195923 local/ulbcat.ulb.ac.be:1086106 https://dipot.ulb.ac.be/dspace/bitstream/2013/209179/1/50543006-bfb4-431b-ad41-da73ba503e9b.txt http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/209179 |
op_rights |
1 full-text file(s): info:eu-repo/semantics/openAccess |
_version_ |
1766092717850361856 |