2026 CAP Congress / Congrès de l'ACP 2026

Session

(DAPI) T3-9 | (DPAI)

T3-9

23 Jun 2026, 16:15

U. Ottawa - Learning Crossroads (CRX) Building

881. Positioning Error Effects on Ptychographic Reconstruction

Nicholas Simonson (University of Saskatchewan)

23/06/2026, 16:15

Applied Physics and Instrumentation / Physique appliquée et de l'instrumentation (DAPI / DPAI)

Oral Competition (Graduate Student) / Compétition orale (Étudiant(e) du 2e ou 3e cycle)

Ptychography is a scanning coherent diffraction imaging technique that takes far-field diffraction patterns measured at well-known, predefined scan points and reconstructs the two-dimensional complex X-ray transmission function. This technique has been used to image a wide range of technologically important samples, ranging from micrometeorites to x-ray optics, with reported spatial...

637. Uncovering the nature of closure phases

Shokoufe Faraji

23/06/2026, 16:30

Applied Physics and Instrumentation / Physique appliquée et de l'instrumentation (DAPI / DPAI)

Oral (Non-Student) / Orale (non-étudiant(e))

We present a fully analytic study of fork shaped a jumps seen in
mm-VLBI closure phases and derive the first closed form expressions that connect these bifurcations to intrinsic source asymmetries.
For a two-component (dipolar) brightness model we prove: (i) a necessary and sufficient branch cut invariant that links any integer change in the closure phase property to an intervening...

751. Nanomembrane -based Microfluidic Platform with Embedded Electrical Pressure Transducer for On-Chip Nanoparticle Quantification

Zachary Morris (University of Ottawa)

23/06/2026, 16:45

Applied Physics and Instrumentation / Physique appliquée et de l'instrumentation (DAPI / DPAI)

Oral Competition (Graduate Student) / Compétition orale (Étudiant(e) du 2e ou 3e cycle)

Accurate quantification of nanoparticle concentration is important in a host of fields, particularly in nanomedicine, electronics, and catalysis. Microfluidic systems present an opportunity to develop low-cost tests for nanoparticle quantification but often suffer technical challenges related to small sample volumes and optical interference from materials used to construct the device. Here we...

789. Using phase interference to characterize dynamic properties – portable NMR rheometry and elastometry

Igor Mastikhin (University of New Brunswick)

23/06/2026, 17:00

Applied Physics and Instrumentation / Physique appliquée et de l'instrumentation (DAPI / DPAI)

Oral (Non-Student) / Orale (non-étudiant(e))

Dynamic properties are a response of a sample to an applied dynamic stress. Changes in tissue viscoelasticity can be an indication of serious health issues; the flow induced in response to shear stress tells us about fluid viscosity.
Nuclear Magnetic Resonance (NMR) signal can be sensitized to measure displacements; its spatially-resolved NMR, also known as Magnetic Resonance Imaging (MRI),...

742. Estimating absolute optical properties in turbid media using single-distance broadband continuous-wave spectroscopy

Rasa Eskandari (Western University)

23/06/2026, 17:15

Applied Physics and Instrumentation / Physique appliquée et de l'instrumentation (DAPI / DPAI)

Oral Competition (Graduate Student) / Compétition orale (Étudiant(e) du 2e ou 3e cycle)

Light interaction with turbid media has significant biomedical and industrial applications, including non-invasive hemodynamic monitoring and food processing. Light absorption reveals concentrations of chromophores, while scattering informs on the geometry and distribution of microstructures. Broadband continuous-wave spectroscopy (bCWS) is a simple, cost-effective approach for measuring...

601. MC-MICAP-MS: A New Era of Stable Isotope Mass Spectrometry

Gabby Gelinas (University of Calgary)

23/06/2026, 17:30

Applied Physics and Instrumentation / Physique appliquée et de l'instrumentation (DAPI / DPAI)

Oral Competition (Graduate Student) / Compétition orale (Étudiant(e) du 2e ou 3e cycle)

The relative abundances of an element’s stable isotopes can change due to biological, physical, and chemical mass dependent processes in living systems and the environment. In a biological system, shifts in an element’s isotopic composition may indicate changes in its regulation due to disease, or exposure to toxic levels of the element or its parent isotopes. These changes in isotopic...