CURRICULUM VITAE
Through six years of graduate school education and research, I have developed skills in:
- Creative problem solving and experimental design
- Developing detector systems and software to acquire and analyze data
- Quantitative analysis of large data sets
- Producing data visualizations using matplotlib and ROOT
- Programming and scripting with C++, python, and bash
- Collaborating with colleagues locally and internationally
- Presenting results at conferences and collaboration meetings
- Writing technical specifications and academic documents
- FPGA firmware design, implementation, and optimization in VHDL
- Developing and presenting instructional material to students, faculty, and staff
- Prioritizing tasks based on deadlines and importance
- Experimental design and implementation
- Creative problem solving and adapting to new tasks and paradigms
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Detector Technologist, VISPA | Sept 2017 - Present |
Collaborate on various projects with institutions such as ATLAS, Darkside 20k, Belle II, TRIUMF. Maintain the safety and cleanliness of the VISPA detector lab at the University of Victoria. Develop and maintain software to communicate with lab devices. Mentor graduate and undergraduate students, work with faculty and staff to run experiments.
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PhD Researcher, University of Victoria | Jan 2013 - May 2017 |
Designed, assembled, and commissioned thermal neutron detector system using tubes of helium-3 for the Belle II experiment. Developed and tested data acquisition system for helium-3 tubes. Oversaw deployment and operation of this detector system in Japan, and analyzed data recorded by them. Calibrated helium-3 tubes at UVic. Simulated helium-3 tubes and neutron source | |
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MSc Researcher, University of Victoria | Sept 2010 - Aug 2012 |
Investigated a new technique in particle identification in gaseous detectors. Developed and tested algorithms >to implement this new technique. | |
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Laboratory Instructor, University of Victoria | Sept 2010 - Apr 2016 |
Instructed undergraduate students on proper laboratory technique and equipment use. Taught experiments in introductory physics, electricity and magnetism, and laboratory electronics. Evaluated student progress and graded lab reports. | |
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PhD. Experimental Particle Physics. University of Victoria. 2017.
MSc. Experimental Particle Physics. University of Victoria. 2012.
BSc. Applied Physics, Math (minor). Carlton University. 2010.
Programming python, C, C++, make, object oriented programming, java, Matlab, bash, html, data analysis, module development, Jupyter,
Version Control svn, git, github, gitlab
Mathematics linear algebra, single and multivariable calculus, statistics, computational mathematics, Mathematica
Documentation technical documentation, Doxygen, LaTeX, Markdown
Research particle physics, particle detector development, experimentation, instrumentation research, literature review
Interpersonal public speaking, problem solving, peer review of designs, teaching, leadership
FPGA Altera, Xilinx, VHDL, verilog, Modelsim, high speed transceivers, digital signal processing, simulation, algorithm development and testing, debugging, design, implementation, optimization
Communication Protocols TCP/IP, UDP/IP, serial, UART, JTAG
Hardware detector development, DAQ, instrumentation, monitoring, automation, device interfaces\\ & (USB and network connected)
Conferences
2016. CAP. Ottawa, ON.
2012. WNPPC. Mont Tremblant, QC.
2012. CAP. Calgary, AB.
2009. CUPC. University of Alberta. Edmonton, AB.
General Meetings
2016. Belle II General Meetings 23 and 25. Tsukuba, Japan.
2015. Belle II General Meetings 20 and 22. Tsukuba, Japan.
2014. Belle II General Meetings 17 and 18. Tsukuba, Japan.
2014. BEAST Workshop 3. Honolulu, HI.
2013. Belle II General Meeting 16. Tsukuba, Japan.
2013. Belle II General Meeting 15. Blacksburg, VA.
2011. SuperB General Meeting. Frascatti, Italy.
Vahsen, S., et al. Measurements of Beam Backgrounds in SuperKEKB Phase 2. Nuclear Instruments and Methods in Physics Research Section A, Vol. 1040, 2022
Vahsen, S., et al. First measurements of beam backgrounds at SuperKEKB. Nuclear Instruments and Methods in Physics Research Section A, Vol. 914, 2017
J.-F. Caron, C. Hearty, P. Lu, R. So, R. Cheaib, J.-P. Martin, W. Faszer, A. Beaulieu, S. de Jong, M. Roney, R. de Sangro, G. Felici, G. Finocchiaro, and M. Piccolo. Improved Particle Identification Using Cluster Counting in a Full-Length Drift Chamber Prototype. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 735:169-183, 2014.
SuperB Collaboration. SuperB Technical Design Report. 2013.
D. M. Asner, M. Cunningham, S. Dejong, K. Randrianarivony, C. Santamarina, and M. Schram. Prospects for Observing the Standard Model Higgs Boson Decaying into b\bar{b} Final States Produced in Weak Boson Fusion with an Associated Photon at the LHC. Physical Review D, 2010.
Problem solving, Data analysis, Programming, Data acquisition systems, Hardware-software interface, Physics, Experimentation, Detector development, Simulation of detector systems, Research and development
CERN, Geneva, Switzerland: ATLAS sTGC | 2018 |
Assisted with construction and assembly of support jigs for the sTGC (new small wheel) modules. | |
KEK, Tsukuba, Japan: BEAST II Phase I | 2016 |
Installed helium-3 tubes in the SuperKEKB commissioning detector, BEAST II. Performed data acquisition shifts, attended accelerator meetings, problem solved issues with the experiment | |
TRIUMF, Vancouver, Canada: Prototype drift chamber at M11 | 2011 |
Performed shift work for recording data, adjusted beam settings to produce different particle momenta, changed the position of the prototype chamber, problem solved issues with the experiment | |