Tim Lawson

• High resistance (> 1 MΩ).
• Quantum Hall resistance.
• DC Josephson volt.

• PhD, Particle-astrophysics, University of Sheffield, 2002

Tim has worked in the electrical division of MSL since 2008, predominantly in the high resistance and quantum Hall resistance areas, with increasing focus on the DC voltage scale, including the DC Josephson voltage standard. For the ten years prior to this he was at the University of Sheffield, UK, working in the field of particle astrophysics. His first project at Sheffield followed on directly from his PhD work there and involved designing, building and operating a direction-sensitive dark matter detector that was installed 1.1 km underground in the Boulby salt and potash mine under the North Yorkshire coast. In 2007 he shifted projects, still within the physics department at Sheffield, to a neutrino oscillation experiment, T2K, where he was responsible for developing a calorimeter calibration system.

• Kormos, L.* et al. et al., The Electromagnetic Calorimeter for the T2K Near Detector ND280, Journal of Instrumentation, vol. 8 (2013), p 10019.
• Lawson, T. B.*; Early, M. D., 2012, A Zero Boil-Off dewar for use with a Cryogenic Current Comparator, CPEM 2010 - Conference on Precision Electromagnetic Measurements, Conference Digest, p 72 – 73.
• Lawson, T. B.*; Early, M. D.; Jones, K., 2010, Simulation of a Quantum Hall Cryogenic Current Comparator Resistance Bridge, CPEM 2010 - Conference on Precision Electromagnetic Measurements, Conference Digest, p 623 – 624.
• Lawson, T. B.* et al., Track Reconstruction and Performance of DRIFT Directional Dark Matter Detectors using Alpha Particles, Nuclear Instruments and Methods in Physics Research A, 584 (2008), p 114 – 128.
• Lawson, T. B.* et al., The DRIFT-II Dark Matter Detector: Design and Commissioning, Nuclear Instruments and Methods in Physics Research A, 555 (2005), p 173 – 183.