I am a Research Associate working on the NEWS
experiment. I help manage the
NEWS lab at Queen's. The main
activities in the lab are to install and test prototype detectors, perform laser
and radioactive source calibrations, test electronics and data acquisition
systems, and analyze prototype detector data. I am also the NEWS-SNO gas
handling system task leader. Before joining the NEWS
project, I worked on the
DEAP experiment. I have a Bachelor's
degree from the University of Science and Technology of China and a PhD from the
University of Minnesota--Twin Cities. I joined the group in 2006 as a fresh PhD
graduate. After a short stay in Caltech in 2009, I decided to move back to
Canada and have been with the group since.
I'm a postdoctoral fellow working with Dr. Tony Noble on the
PICASSO and PICO
dark matter search experiments at Snolab. I work both on and off-site on a range
of activities including detector operation, data analysis, and the development
of a small-size test bubble chamber at Queen's University. I earned my doctoral
degree in 2012 from Bern University, Switzerland, working with Dr. Jean-Luc
Vuilleumier. My dissertation research focused on the search for neutrinoless
double beta decay of xenon-136 within the EXO collaboration. After graduating, I
continued working as a postdoctoral fellow with Dr. Vuilleumier on the
development of a novel light detection scheme for use in medium-pressure gas
TPCs. I hold a master's degree from Université de Montréal where I worked with
Dr. Viktor Zacek on the detector fabrication, installation, and data analysis of
the PICASSO experiment.
I am a research fellow in the Department of Physics at Queen's University. I
have joined the group in July, 2008. My project concentrates on astroparticle
physics at SNOLAB (2 km underground at the Sudbury Neutrino Observatory site
near Sudbury, Ontario, Canada) facility. My main activity involves
DEAP experiment (Dark matter search
with liquid argon). This experiment addresses questions about the nature of dark
matter and dark energy, and how these relate to the origins of our universe. The
work includes Monte-Carlo simulations with GEANT4 for detector design, detector
development, and data analysis for the extraction of physics results.
I started my work at Queen's in January 2009 and I'm focused on
matter experiment. Before, during my grad studies at the Jagiellonian
University in Krakow and at the Paul Scherrer Institute, I had been
involved in slightly different physics (physics of cold and ultracold
neutrons, neutron electric dipole moment). Currently, I am working mainly
on Monte Carlo simulations of the detector and reduction of radioactive
backgrounds (using ultra pure polymer coatings), plus some unrelated R&D
and mining, occasionally.
Hi! After I completed my PhD at Virginia-Tech, I joined
SNO+ with the Queen's group to
continue research in ultra-low background neutrino physics as a post-doctoral
fellow. I am currently focusing on purification of a major component of our
liquid scintillator that will be used in the neutrinoless double beta decay
phase of SNO+. In spare time, I try
to help with detector calibrations, various small-scale hardware projects, and
software development or analysis whenever possible. Personally, my humble goal
at Queen's is to help improve precision measurement of the solar neutrino
spectrum and get a glimpse into the (hopefully dual) nature of a neutrino
I recently joined the NEWS-SNO experiment which aims to probe
the light Dark Matter sector using a new concept of spherical gaseous
detector. My main effort up to now has been two-fold. First, I have
been analyzing prototype data collected in France (LSM) to extract
limits on a possible WIMP signal. Secondly, I have been designing the
NEWS-SNO calibration system while helping with other R&D projects
to facilitate a smooth setting up of the experiment at SNOLAB.
Prior to joining NEWS-SNO, I did a short term post-doc on PICO. With this experiment I focused on background reduction using a wavelet
approach for bubble technologies I developed during my PhD program.
Currently, I am a postdoctoral fellow working with Prof. Gerbier's NEWS (New
Experiments with Spheres) group at the physics department of Queen's University.
Spherical TPCs (time projection chambers), as applied within the NEWS projects,
are a comparably new detector concept and are to be used for the direct very
low-mass dark matter search and CNNS (coherent neutrino nucleus scattering), as
well as other applications. On the one hand, I am project manager of the
NEWS-SNO dark matter experiment planned to be setup in the SNOLAB underground
laboratory as well as responsible for the construction of parts of the
experiment, where, on the other hand, I am working on further optimizing and
testing TPCs in our new laboratory at Queen's University. In the course of my
PhD thesis I was working with the CRESST (Cryogenic Rare Event Search with
Superconducting Thermometers) group at the Technical University in Munich,
Germany, on the development and optimization of cryogenic phonon and
single-photon detectors as well as developing a microscopic model for the
scintillation light generation in crystals due to particle interactions.
I joined the SuperCDMS collaboration in July 2015 as a postdoctoral fellow at
Queen's. My main focus is working with Dr. Philippe Camus to build a cryogenic
underground test facility (CUTE) at SNOLAB. It will provide the opportunity to
test the discrimination power and energy resolution of the SuperCDMS detectors
underground. This facility will also help with incorporating the EURECA detector
towers into the SuperCDMS cryostat, bringing additional payload of detectors
into the experiment. Before moving to Canada, I finished my Ph.D. studies at
University of Oxford, working with Dr. Hans Kraus on developing and producing a
radio-pure cryogenic cabling system for the EDELWEISS experiment, as well as
constructing a novel phonon-scintillation cryogenic detector module based on
scintillating crystal, NTD-Ge sensor and PMT for next-generation dark matter
direct detection and other future rare event searches.
Current Status of Past Postdocs
PostDoc at University of Alberta.
Research scientist at Chalk River.
Research scientist at Uppsala University, Sweden.
PostDoc at University of Geneva.
SNOLAB associate director in Sudbury.
Faculty position at Carleton.
Lecturer at University of Lancaster, UK.
Faculty position at University of Alberta.
Staff physicist at LIP, Lisbon, Portugal.
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