Mass-spectrometer leak detector for high-vacuum/high-purity research intruments

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The Department of Physics at Simon Fraser University has a vibrant program in experimental condensed matter physics, with researchers working on: the growth and characterization of novel semiconductor and magnetic materials; magnetic resonance of hyperpolarized gases; Bose-Einstein condensates; trapped ion quantum computing; and the physical properties of quantum materials. The apparatus used in most of this research has the common requirement of either very high vacuum, or the handling of high purity gases. High vacuum is important for several reasons: it allows materials to be deposited, one atomic layer at a time, without contamination from residual gas; it allows extreme, unstable conditions, such as very low temperatures, to be set up and maintained; and it enables devices such as electron microscopes to study structure with atomic resolution. In parallel with this, the delivery of high purity gases is essential to several applications, including the growth of custom-made semiconductor materials (used at SFU to produce the world's fastest transistors in 2001) and the operation of low temperature cryostats that circulate high purity mixtures of helium gas. In addition to a world-class research effort, our condensed matter physics program makes an impressive contribution to training, having collectively supervised 198 trainee researchers in the past 6 years.