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URN: urn:nbn:de:swb:90-447316

Radiation Damage to the diamond-based Beam Condition Monitor of the CMS Detector at the LHC

Guthoff, Moritz

Abstract:
In the Beam Condition Monitor at the CMS experiment at the LHC, CVD diamonds are used as detectors. During Run 1 operation of the LHC, significant reduction of signal efficiency due to radiation damage was observed. The decrease was significantly stronger than expected. The so-called polarization effect is responsible for this signal reduction. Electric field deformations due to trapped charge carriers are shown in measurements using the transient current technique and compared with simulations.


Zugehörige Institution(en) am KIT Institut für Experimentelle Kernphysik (IEKP)
Publikationstyp Hochschulschrift
Jahr 2014
Sprache Englisch
Identifikator KITopen ID: 1000044731
Verlag Karlsruhe
Abschlussart Dissertation
Fakultät Fakultät für Physik (PHYSIK)
Institut Institut für Experimentelle Kernphysik (IEKP)
Prüfungsdaten 24.01.2014
Referent/Betreuer Prof. W. de Boer
Schlagworte Diamond detectors, Radiation damage, Polarization, TCT measurements, Simulation
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