The Diviner Lunar Radiometer is a nine-channel radiometer on board the Lunar Reconnaissance Orbiter, launched in June 2009 and currently orbiting the Moon. Diviner is the first orbiting multi-spectral instrument to observe the lunar surface in the mid- and far- infrared, therefore this thesis details the first steps towards utilising observations in this new spectral region. The author, as part of the Diviner instrument team, contributed to the pre-launch testing and calibration of Diviner. Specifically, the transmission profiles of the B2 and B3 filters, which could not be measured after integration into the instrument due to their long wavelength passbands, were determined. Further investigations of the far-infrared mesh filters were also conducted, as the spectral responses of similar mesh filters were found to have broadened after integration into the Mars Climate Sounder instrument, the pre-cursor instrument to Diviner. To test if this would occur in Diviner also, a new setup was made to approximately re-create the instruments' optical layout. No such spectral broadening was measured in the B1, B2 or B3 filters. The linearities of Diviner's detectors were also confirmed through analysis of the pre-flight calibration data. Laboratory emission spectra taken under ambient conditions differ from those taken in a lunar environment, which induces a temperature gradient in soil and mineral samples. Due to a lack of spectra measured under such conditions, which are directly comparable to Diviner‟s measurements, a new chamber for performing high-resolution emission measurements in a simulated lunar environment was built and calibrated. This setup induces a temperature gradient in each sample by heating it from below while it is surrounded by a cooled radiation shield, all enclosed in a very low pressure vacuum chamber. Lunar analogue minerals have been measured, first in reflectance, and then in simulated lunar conditions, forming the basis of a new lunar spectral library. The uses of the mid- and far-infrared have been described herein, utilising calibrated Diviner observations to: [1] map the temperatures of the lunar poles; [2] investigate regions containing higher than average abundances of rocks; and [3] determine the composition of regions of the lunar surface by combining observations with the new spectral library made during this project.

É um dever dos profissionais que trabalham na área de mensuração discutir os temas que envolvem a manutenção/calibração de instrumentos geodésicos em ambiente laboratorial e o uso de padrões específicos voltados para as áreas de instrumentação e de Sistema de Gestão da Qualidade. Para isso, é importante mencionar as normas ISO 17123:2001, NBR ISO/IEC 17025:2005, ABNT NBR ISO 9001:2000 e os métodos compactos para laboratório voltados para testar estações totais e instrumentos EDM. Neste contexto, o principal objetivo desta pesquisa é discutir os temas relacionados à manutenção/calibração de instrumentos geodésicos em laboratório, mostrando a importância da implantação do Sistema de Gestão da Qualidade (SGQ). Também são discutidas as vantagens decorrentes desta implantação, bem como a organização estrutural e de pessoal para tal sistema, apresentando as normas específicas usadas para a realização de trabalhos em agrimensura. Para compreender melhor a temática da dissertação foram pesquisados alguns laboratórios internacionais que trabalham com a manutenção/calibração de instrumentos geodésicos, que são acreditados pela norma ISO 17025:2005, são certificados pelas normas ISO 9001:2000 e realizam os seus procedimentos de acordo com os requisitos da norma ISO 17123:2001. Dessa forma, as avaliações sobre a estrutura organizacional do laboratório, a estrutura de pessoal e o SGQ implantado, foram realizadas de forma mais segura. Os laboratórios pesquisados realizam suas atividades de acordo com os requisitos das normas ISO 9001:2000, ISO 17025:2005 e ISO 17123, garantindo qualidade aos trabalhos nos laboratórios. A calibração realizada de forma correta e regular contribui para a promoção da qualidade das atividades nos laboratórios. / It is the duty of professionals working in the area of measurement discuss issues involving the maintenance/calibration of geodesic instruments in the laboratory and the use of specific standards directed to the areas of instrumentation and Quality Management System. Therefore, it is important to dimensional standards ISO 17123:2001, ISO/IEC 17025:2005, ISO 9001:2000 and compact laboratory methods aimed at testing EDM instruments and total stations. In this context, the main objective of this research is to discuss issues related to maintenance/calibration of geodetic instruments in the laboratory, showing the importance of implementing the Quality Management System (QMS). Also discussed are advantages of this deployment, as well as the structural organization and personnel for such a system, with specific standards used to perform work in surveying. To better understand the theme of the thesis were searched some international laboratories that work with the maintenance/calibration of geodetic instruments, which are accredited to ISO 17025:2005 are certified by ISO 9001:2000 and realize their procedures in accordance with the requirements of ISO 17123:2001. Thus, the ratings on the organizational structure of the laboratory, the personnel structure and quality management system in place, were held more securely. The laboratories surveyed perform their activities in accordance with the requirements of ISO 9001:2000 and ISO 17025:2005 and ISO 17123, ensuring quality to work in laboratories. The calibration performed correctly and regularly contributes to the promotion of quality activities in the laboratories.

Groundwater aquifers are the largest source of drinking water for human population. Current available information of the quality of groundwater is quite limited mainly due to the lack of comprehensive analysis of groundwater and the challenging task of applying any analytical method in its investigation. In this thesis, a new method based on “soft” mass spectrometry and differential ion mobility (FAIMS) was developed to discover previously unknown sulphur-containing contaminants in groundwater in Ontario. Following this discovery, de novo identification of these contaminants was accomplished by determining their elemental composition based on mass measurements and their chemical structures from unique dissociation patterns. The compounds characterized in this study were found to be thiotetronic acids which are structurally related to synthetic and natural antibacterial agents such as the natural antibiotics thiolactomycin and thiotetramycin, allowing for speculation as to their potential beneficial properties.

É um dever dos profissionais que trabalham na área de mensuração discutir os temas que envolvem a manutenção/calibração de instrumentos geodésicos em ambiente laboratorial e o uso de padrões específicos voltados para as áreas de instrumentação e de Sistema de Gestão da Qualidade. Para isso, é importante mencionar as normas ISO 17123:2001, NBR ISO/IEC 17025:2005, ABNT NBR ISO 9001:2000 e os métodos compactos para laboratório voltados para testar estações totais e instrumentos EDM. Neste contexto, o principal objetivo desta pesquisa é discutir os temas relacionados à manutenção/calibração de instrumentos geodésicos em laboratório, mostrando a importância da implantação do Sistema de Gestão da Qualidade (SGQ). Também são discutidas as vantagens decorrentes desta implantação, bem como a organização estrutural e de pessoal para tal sistema, apresentando as normas específicas usadas para a realização de trabalhos em agrimensura. Para compreender melhor a temática da dissertação foram pesquisados alguns laboratórios internacionais que trabalham com a manutenção/calibração de instrumentos geodésicos, que são acreditados pela norma ISO 17025:2005, são certificados pelas normas ISO 9001:2000 e realizam os seus procedimentos de acordo com os requisitos da norma ISO 17123:2001. Dessa forma, as avaliações sobre a estrutura organizacional do laboratório, a estrutura de pessoal e o SGQ implantado, foram realizadas de forma mais segura. Os laboratórios pesquisados realizam suas atividades de acordo com os requisitos das normas ISO 9001:2000, ISO 17025:2005 e ISO 17123, garantindo qualidade aos trabalhos nos laboratórios. A calibração realizada de forma correta e regular contribui para a promoção da qualidade das atividades nos laboratórios. / It is the duty of professionals working in the area of measurement discuss issues involving the maintenance/calibration of geodesic instruments in the laboratory and the use of specific standards directed to the areas of instrumentation and Quality Management System. Therefore, it is important to dimensional standards ISO 17123:2001, ISO/IEC 17025:2005, ISO 9001:2000 and compact laboratory methods aimed at testing EDM instruments and total stations. In this context, the main objective of this research is to discuss issues related to maintenance/calibration of geodetic instruments in the laboratory, showing the importance of implementing the Quality Management System (QMS). Also discussed are advantages of this deployment, as well as the structural organization and personnel for such a system, with specific standards used to perform work in surveying. To better understand the theme of the thesis were searched some international laboratories that work with the maintenance/calibration of geodetic instruments, which are accredited to ISO 17025:2005 are certified by ISO 9001:2000 and realize their procedures in accordance with the requirements of ISO 17123:2001. Thus, the ratings on the organizational structure of the laboratory, the personnel structure and quality management system in place, were held more securely. The laboratories surveyed perform their activities in accordance with the requirements of ISO 9001:2000 and ISO 17025:2005 and ISO 17123, ensuring quality to work in laboratories. The calibration performed correctly and regularly contributes to the promotion of quality activities in the laboratories.

[pt] Incrustações em trocadores de calor são inevitáveis e provocam a redução da sua efetividade térmica e aumento nos custos de bombeamento. Esta dissertação objetiva validar um dispositivo alternativo de limpeza de trocadores de calor, que automatiza o processo e não requer a interrupção do processo industrial que faz uso de trocadores. A motivação da pesquisa resultou do desafio imposto ao Programa de Metrologia da PUC-Rio para conceber uma solução inovadora para realizar a limpeza on-line de trocadores de calor de hidrogeradores, viabilizada com financiamento do setor elétrico e que motivou esta dissertação. A metodologia de desenvolvimento da pesquisa de mestrado perseguiu duas estratégias de otimização: (i) aprimorar a hidrodinâmica dos circuitos hidráulicos do dispositivo de limpeza concebido, visando reduzir custos de bombeamento e (ii) simular o número de ciclos mínimos de limpeza para assegurar que todos os tubos do trocador de calor sejam visitados por artefatos de limpeza. Dentre os resultados consolidados, destacam-se: (i) melhoria dos fluxos hidrodinâmicos nos distintos tramos hidráulicos do dispositivo servo-hidráulico de limpeza; (ii) confiabilidade metrológica do sistema de medição embarcada no equipamento e (iii) desenvolvimento de modelagem probabilística capaz de prever o número de ciclos de limpeza capaz de assegurar eficácia do procedimento de limpeza do trocador, o que contribui para o seu entendimento. Os ensaios de desempenho realizados em laboratório suportam a conclusão de que a pesquisa de mestrado foi capaz de validar e disponibilizar uma versão hidrodinamicamente mais eficiente e operacionalmente mais eficaz do dispositivo de limpeza originalmente concebido. / [en] Fouling in heat exchangers is inevitable and causes a reduction in their thermal effectiveness and an increase in pumping costs. This dissertation aims to validate an alternative heat exchanger cleaning device, which automates the process and does not require the interruption of the industrial process that uses exchangers. The motivation for the research resulted from the challenge imposed on the Metrology Program at PUC-Rio to devise an innovative solution to perform the online cleaning of hydrogenerator heat exchangers, made possible with financing from the electricity sector and which motivated this dissertation. The master s research development methodology pursued two optimization strategies: (i) improving the hydrodynamics of the hydraulic circuits of the designed cleaning device, aiming to reduce pumping costs and (ii) simulating the number of minimum cleaning cycles to ensure that all the tubes of the heat exchanger are visited by cleaning artefacts. Among the consolidated results, the following stand out: (i) improvement of hydrodynamic flows in the different hydraulic sections of the servo-hydraulic cleaning device; (ii) metrological reliability of the measurement system embarked in the equipment and (iii) development of probabilistic modeling capable of predicting the number of cleaning cycles capable of ensuring the efficiency of the exchanger cleaning procedure, which contributes to its understanding. The performance tests performed in the laboratory support the conclusion that the master s research was able to validate and make available a hydrodynamically more efficient and operationally more effective version of the cleaning device originally designed.

[ES] Los neutrinos de alta energía son partículas esquivas: no tienen carga, tienen una sección transversal de interacción muy pequeña con la materia ordinaria y su masa es extremadamente pequeña. Los neutrinos son una sonda importante en el estudio del origen de los rayos cósmicos, y también, siguiendo algunos modelos de la física más allá del modelo Stardard, pueden producirse a partir de la propagación de partículas del modelo estándar producidas por la aniquilación de la materia oscura. En el último siglo, se han desarrollado muchos enfoques nuevos en la física de astropartículas, tratando de resolver los enigmas no resueltos del Universo, como el origen de los rayos cósmicos y la existencia de la materia oscura. Entre los diferentes experimentos destacan, sin duda, los telescopios de neutrinos. Los telescopios de neutrinos, consistentes en un gran volumen de un medio transparente monitorizado por sensores ópticos para detectar luz de Cherenkov, pueden detectar neutrinos de alta energía de fuentes galácticas o extragalácticas, y también pueden usarse para el estudio de las propiedades de los neutrinos. ANTARES y su sucesor KM3NeT son dos telescopios de neutrinos ubicados en el mar Mediterráneo. El telescopio ANTARES empezó a estar operativo en 2007 y ha tomado datos de forma casi continua hasta principios de 2022. KM3NeT, aprovechando la experiencia de ANTARES, pretende ser el telescopio de neutrinos más sensible de la próxima generación de detectores. Esta tesis presenta mis contribuciones en ambos detectores. En concreto, la parte técnica del trabajo se ha desarrollado en colaboración con KM3NeT. Está dedicado al estudio de los datos de los sensores de orientación instalados en los módulos de detección ópticos de KM3NeT: desde su calibración antes del despliegue en el mar hasta el análisis de sus datos in situ. Estos sensores permiten una monitorización de los movimientos de los elementos detectores en el mar. Por otro lado, en colaboración con ANTARES se ha desarrollado un análisis de física relacionado con la búsqueda de la aniquilación de la materia oscura en el Sol analizando trece años de datos. Se han obtenido nuevos límites superiores para los flujos de neutrinos y antineutrinos a partir de la aniquilación de materia oscura en el Sol, y a partir de estos, se han derivado límites superiores a la sección eficaz de dispersión de Materia Oscura - Nucleón. Estos resultados mejoran en un factor dos los resultados anteriores de ANTARES y son competitivos con respecto a otros experimentos. / [CA] Els neutrins d'alta energia són partícules esquives: no tenen càrrega, tenen una secció transversal d'interacció molt petita amb la matèria ordinària i la massa és extremadament petita. Els neutrins són una sonda important en l'estudi de l'origen dels raigs còsmics, i també, seguint alguns models de la física més enllà del Model Stardard, es poden produir a partir de la propagació de partícules del model estàndard produïdes per l'aniquilació de la matèria fosca. A l'últim segle, s'han desenvolupat molts enfocaments nous a la física d'astropartícules, tractant de resoldre els enigmes no resolts de l'Univers, com l'origen dels raigs còsmics i l'existència de la matèria fosca. Entre els diferents experiments destaquen, sens dubte, els telescopis de neutrins. Els telescopis de neutrins, consistents en un gran volum d'un medi transparent monitoritzat per sensors òptics per detectar llum de Cherenkov, poden detectar neutrins d'alta energia de fonts galàctiques o extragalàctiques, i també es poden utilitzar per a l'estudi de les propietats dels neutrins. ANTARES i el seu successor KM3NeT són dos telescopis de neutrins ubicats al mar Mediterrani. El telescopi ANTARES va començar a estar operatiu el 2007 i ha pres dades de forma gairebé contínua fins a principis del 2022. KM3NeT, aprofitant l'experiència d'ANTARES, pretén ser el telescopi de neutrins més sensible de la propera generació de detectors. Aquesta tesi presenta les meves contribucions a tots dos detectors. Concrètement, la part tècnica del treball s'ha desenvolupat en col·laboració amb KM3NeT. Està dedicat a l'estudi de les dades dels sensors d'orientació instal·lats als mòduls de detecció òptics de KM3NeT: des del calibratge abans del desplegament al mar fins a l'anàlisi de les seves dades in situ. Aquests sensors permeten una monitorització dels moviments dels elements detectors al mar. D'altra banda, en col·laboració amb ANTARES s'ha desenvolupat una anàlisi de física relacionada amb la recerca de l'aniquilació de la matèria fosca al Sol analitzant tretze anys de dades. S'han obtingut nous límits superiors per als fluxos de neutrins i antineutrins a partir de l'aniquilació de matèria fosca al Sol, i a partir d'aquests, s'han derivat límits superiors a la secció eficaç de dispersió de Materia Fosca - Nucleó. Aquests resultats milloren en un factor dos els resultats anteriors de ANTARES i són competitius respecte a altres experiments. / [EN] High energy Neutrinos are elusive particles: they are chargeless, have a very small cross section with ordinary matter and their mass is extremely small. Neutrinos are an important probe in the study of the origin of cosmic rays but also, following some models of physics Beyond the Standard Model, they can be produced from the decay of Standard Model particles produced by dark matter annihilation. In the last century, many new approaches have been developed in astroparticle physics, trying to solve the unsolved puzzles of the Universe such as the origin of Cosmic Rays and the existence of Dark Matter. Among the many experiments, neutrino telescopes certainly stand out. Neutrinos telescopes, made of large volume of a transparent medium observed by optical sensors, can detect high energy neutrinos from galactic or extra-galactic sources, and they can also be used for the study of neutrino properties. ANTARES and its successor KM3NeT are two neutrino telescopes located in the Mediterranean sea. ANTARES operations started in 2007 and it has taken data almost continuously until the beginning of 2022. KM3NeT, taking advantage from the experience of ANTARES, aims to be the most sensitive neutrino telescope in the next generation of detectors. This thesis presents my contributions to both detectors. In particular, the technical part of the work has been developed in collaboration with KM3NeT. It is devoted to the the study of data from the compasses installed in the KM3NeT detection elements: from their calibration before deployment to the analysis of their data in the sea. These compasses allow a tracking of the movements of the detector elements in the sea. In collaboration with ANTARES a physics analysis related to the search of dark matter annihilation in the Sun has been developed analyzing thirteen years of data. New upper limits for neutrino and antineutrino fluxes from dark matter annihilation in the Sun have been obtained, and from these upper limits on the Dark Matter - Nucleon scattering cross section have been obtained. These results improve previous ANTARES results by a factor of 2 and are competitive with those obtained by other experiments. / Poirè, C. (2022). Dark Matter Searches Towards the Sun with ANTARES and Positioning Studies for KM3NeT [Tesis doctoral]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/188750