Silicon radiation detectors fabricated at the IMB-CNM (CSIC) Clean Room
facilities using the most innovative techniques in detector technology are presented in
this thesis. TCAD simulation comprises an important part in this work as becomes an
essential tool to achieve exhaustive performance information of modelled detectors
prior their fabrication and subsequent electrical characterization. Radiation tolerance is
also investigated in this work using TCAD simulations through the potential and
electric field distributions, leakage current and capacitance characteristics and the
response of the detectors to the pass of different particles for charge collection
efficiencies. Silicon detectors investigated in this thesis were developed for specific
projects but also for applications in experiments which can benefit from their improved
characteristics, as described in Chapter 1.
Double-sided double type columns 3D (3D-DDTC) detectors have been developed
under the NEWATLASPIXEL project in the framework of the CERN RD50
collaboration for the ATLAS Inner Detector upgrades and the introduction of a new
pixel layer called Insertable B-Layer. The radiation tolerance of slim-edge (“edgeless”)
detectors, whose current terminating structure reduces the insensitive area of detectors
to 50 μm, for close-to-beam experiments like the TOTEM experiment at HL-LHC, have
been simulated under the EU TOSTER project. Ultra-thin 3D detectors, which combine
3D detector technology and thin membrane fabrication process, are also studied in this
work. They provide an alternative to the present Neutral Particle Analyzers at the
International Thermonuclear Experimental Reactor (ITER) in the ions detection for
plasma diagnosis, and they are also being used in neutron detection experiments after
being covered with any layer containing 10B whose high capture cross-section of
thermal neutrons allows their detection through the emitted alpha. Finally, active-edge
detectors have been studied for applications in X-ray beam positioning, X-ray sensors
for beamstops and detectors with pad, microstrip and Medipix2 designs for research
purposes.
| Identifer | oai:union.ndltd.org:TDX_UAB/oai:www.tdx.cat:10803/96361 |
| Date | 02 July 2011 |
| Creators | Balbuena Valenzuela, Juan Pablo |
| Contributors | Pellegrini, Giulio, Fernández Sánchez, Enrique, Universitat Autònoma de Barcelona. Departament de Física |
| Publisher | Universitat Autònoma de Barcelona |
| Source Sets | Universitat Autònoma de Barcelona |
| Language | English |
| Detected Language | English |
| Type | info:eu-repo/semantics/doctoralThesis, info:eu-repo/semantics/publishedVersion |
| Format | 220 p., application/pdf |
| Source | TDX (Tesis Doctorals en Xarxa) |
| Rights | info:eu-repo/semantics/openAccess, ADVERTIMENT. L'accés als continguts d'aquesta tesi doctoral i la seva utilització ha de respectar els drets de la persona autora. Pot ser utilitzada per a consulta o estudi personal, així com en activitats o materials d'investigació i docència en els termes establerts a l'art. 32 del Text Refós de la Llei de Propietat Intel·lectual (RDL 1/1996). Per altres utilitzacions es requereix l'autorització prèvia i expressa de la persona autora. En qualsevol cas, en la utilització dels seus continguts caldrà indicar de forma clara el nom i cognoms de la persona autora i el títol de la tesi doctoral. No s'autoritza la seva reproducció o altres formes d'explotació efectuades amb finalitats de lucre ni la seva comunicació pública des d'un lloc aliè al servei TDX. Tampoc s'autoritza la presentació del seu contingut en una finestra o marc aliè a TDX (framing). Aquesta reserva de drets afecta tant als continguts de la tesi com als seus resums i índexs. |
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