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Pouya Khaghani18/06/2014, 19:00Particle Physics / Physique des particules (PPD)Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)SNO+ is a scintillator based neutrino experiment located 2 km deep underground at SNOLAB in Sudbury, Ontario. Looking for rare events requires very stringent background limits and one of the sources originates form 222Rn daughters implanted into the inner surface of the acrylic vessel, holding first ultra-pure water and then organic liquid scintillator - LAB (Linear Alkyl Benzene). 210Pb,...Go to contribution page
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Mr Matthieu Lafrenière Poisson (Laboratoire René J.A. Lévesque, Université de Montréal, Montréal, Québec, Canada)18/06/2014, 19:02Particle Physics / Physique des particules (PPD)Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)One of the most important unsolved mysteries in physics is the possible existence of dark matter, which could account for 85% of the total mass in the universe. PICO experiment intends to detect a specific type of dark matter particle, the weakly interacting massive particles (WIMPs), via scattering on 19F nuclei from C4F10 liquid in superheated droplet detectors and from C3F8 liquid in bubble...Go to contribution page
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Ms Janet Rumleskie (Laurentian University)18/06/2014, 19:04Particle Physics / Physique des particules (PPD)Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)The SNO+ experiment is located 6800 feet below the surface of the earth at SNOLAB, deep within VALE's Creighton Mine. It requires such a depth in order to be shielded from the various surface backgrounds. However, emanation of radioisotopes in the U-238 and Th-232 chains from the rock surrounding the lab can lead to other unwanted backgrounds. One such isotope, Rn-222, has a halflife of around...Go to contribution page
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Mark Ward (Q)18/06/2014, 19:06Particle Physics / Physique des particules (PPD)Poster (Non-Student) / affiche (non-étudiant)DEAP-3600 is a liquid argon dark matter experiment at SNOLAB. Meeting the physics goals and background levels required for this rare event search the detector target must be cleaned both chemically and radiologically. The system for handling all argon gas must also not impart any more than 5 $\mu Bq$ Radon emanation into the target. I will present achieving our goals and the technology of the...Go to contribution page
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Stephen Albert Weber (Carleton University (CA))18/06/2014, 19:08Particle Physics / Physique des particules (PPD)Poster (Non-Student) / affiche (non-étudiant)One of the ATLAS experiment's upgrade to take place in 2018 consists in the construction of new muon chambers. A third of these gaseous detectors (so-called "thin gap chambers") will be built and tested in Canada. The performance of the first prototype chamber built in Canada was measured in a beam test at Fermilab in May 2014. A description of the test setup at Fermilab as well as...Go to contribution page
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Mr David Braid (Laurentian University)18/06/2014, 19:10Particle Physics / Physique des particules (PPD)Poster (Non-Student) / affiche (non-étudiant)SNO+ is a multipurpose neutrino detector located at SNOLAB in Sudbury, Ontario. As the successor to the SNO experiment, SNO+ inherited the detector hardware, including about 10000 photomultiplier tubes (PMTs). Over the lifetime of SNO approximately 8% of the PMTs experienced a failure in the base electronics. Because these PMTs represent a non-trivial gain in light collection, a repair...Go to contribution page
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Mr Broerman Benjamin (Queen's University), Mr Giampa Pietro (Queen's University)18/06/2014, 19:12Particle Physics / Physique des particules (PPD)Poster (Student, Not in Competition) / Affiche (Étudiant(e), pas dans la compétition)The DEAP-3600 dark matter detector uses 255 photomultiplier tubes (PMTs) to detect scintillation light induced in liquid argon by nuclear recoils caused by hypothetical WIMPs. We present here two systems that are used to calibrate and monitor the properties of the PMTs and the overall detector response. The fi rst calibration method utilizes an LED optical flasher source, deployed directly...Go to contribution page
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Mr Arthur Plante (Université de Montréal)18/06/2014, 19:14Particle Physics / Physique des particules (PPD)Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)Particle traversing superheated liquids can trigger phase transition accompanied with acoustic emission which can be capture with piezo electric sensors. Energy above threshold has to be deposited within a critical length for such process to happen for a given set of operating temperature and pressure which can be calculated with Seitz theory. Knowing those informations, particle...Go to contribution page
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Mr Thomas McElroy (University of Alberta)18/06/2014, 19:16Particle Physics / Physique des particules (PPD)Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)DEAP-3600, comprised of a 1 ton fiducial mass of ultra-pure liquid argon, is designed to achieve world-leading sensitivity for spin-independent dark matter (interactions). In addition to rejection of backgrounds through event-wise pulse shape discrimination, the detector must be constructed with materials that have low natural U and Th concentrations to realize the three years of...Go to contribution page
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Elise Gaia Devoie (TRIUMF (CA))18/06/2014, 19:18Particle Physics / Physique des particules (PPD)Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)The search for hisgh-energy particles continues at CERN, in the ATLAS detector. Due to the rarity of events such as the production of the Higgs, it is necessary to increase the luminosity of the LHC. In preparation for this increase, there are several upgrades which must be made to the ATLAS detector to take advantage of the increased event rate, and not be swamped by data. One of these...Go to contribution page
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Mr Wang Jui-Jen (University of New Mexico)18/06/2014, 19:20Particle Physics / Physique des particules (PPD)Poster (Student, In Competition) / Affiche (Étudiant(e), inscrit à la compétition)The MiniCLEAN dark matter experiment will exploit a single-phase liquid-argon detector instrumented with 92 photomultiplier tubes placed in the cryogen temperature with 4-$\pi$ coverage of a 500 kg (150 kg) target (fiducial) mass. The detector design strategy emphasizes scalability to target masses of order 10 tons or more. The detector is designed also for a liquid-neon target that allows...Go to contribution page
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