Mr
Russell Putnam
(University of Windsor)
20/06/2014, 10:45
Plasma Physics / Physique des plasmas (DPP)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
Laser-induced plasmas offer a quick and convenient way to produce high-temperature (~50,000 K) plasmas to serve as a source of highly excited ions. Emission from the plasma, when dispersed in a high-resolution Échelle spectrometer, can be used to measure the relative intensity of all the emission lines from an excited energy level. This allows the determination of the level’s branching ratios...
Richard Alsop
(M)
20/06/2014, 11:00
Medical and Biological Physics / Physique médicale et biologique (DMBP-DPMB)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
The lipid membrane is the most important biological interface, and the fluidity of the membrane is a key property. Cholesterol is a well-known mediator of membrane fluidity. Using X-ray and neutron diffraction we have recently shown that cholesterol at physiological concentrations induces lateral membrane organization. Incorporation of cholesterol into the membrane leads to immiscible...
Simon Archambault
(M)
20/06/2014, 11:15
Instrumentation and Measurement Physics / Physique des instruments et mesures (DIMP-DPIM)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
VERITAS is an array of four imaging atmospheric Cherenkov telescopes (IACT) sensitive to gamma rays at energies between 100 GeV and 10 TeV. Each telescope is based on a tessellated mirror, 12 metres in diameter, which reflects light from a gamma-ray-induced air shower to form an image on a pixellated `camera' comprising 499 photomultiplier tubes. The image brightness is the primary measure of...
Ms
Melanie Chanona
(University of Waterloo)
20/06/2014, 11:30
Theoretical Physics / Physique théorique (DTP-DPT)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
The nature of Earth-Moon interactions results in a complex astrophysical system. Due to subtle effects from the tidal gravitational field of the moon, the Earth's spin angular momentum is actually decreasing over time. But conservation of angular momentum requires that this be compensated for by altering the moon's orbit. I present a novel method of analyzing this interaction using a...
Mr
Steffen Cruz
(University of British Columbia)
20/06/2014, 11:45
Nuclear Physics / Physique nucléaire (DNP-DPN)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
Content is attached as a file.
Ms
Camille Estienne
(Max-Planck-Institut fuer Quantenoptik)
20/06/2014, 12:00
Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
There has been a recent revival of interest in the critical nuclear
charge Z_c that is just sufficient to bind a nucleus
of charge Z and two electrons in the 1s^2 ^1S
ground state [1--3]. It is conjectured that the inverse of critical
charge is related to the radius of convergence 1/Z*
for a 1/Z expansion of the energy of the form
E(Z) = Z^2(E_0 + E_1/Z + E_2/Z^2 + ...). We...
Mark Ilton
(McMaster University)
20/06/2014, 12:15
Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
We have observed for the first time a quantized spectrum of contact angles in the dewetting of a liquid from a homogeneous solid substrate. Using structured liquids of a lamellar diblock copolymer above the order-disorder transition temperature, we observe that predominantily disordered droplets coexist with different discrete thicknesses of wetting layer. At a fixed temperature, the measured...
Corina Nantais
(U)
20/06/2014, 12:30
Particle Physics / Physique des particules (PPD)
Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)
The T2K neutrino beam is produced by colliding 30 GeV protons with a graphite target, and some dark sector models predict that a dark matter candidate could be created in the collision. This massive and neutral particle could scatter off a nucleon in Super-Kamiokande, a 50 kilotonne water Cherenkov detector. Similar to the neutral current quasi-elastic neutrino-oxygen interaction, the dark...
