Robyn M. Millan

Margaret Anne and Edward Leede '49 Distinguished Professorship

Robyn Millan is an experimental physicist specializing in the processes acting on energetic particles in both the atmosphere and in space, and in developing new experimental methods for studying these processes. She has undergraduate degrees in Physics and Astronomy from U. C. Berkeley (1995) and a Ph. D. in Physics from U. C. Berkeley (2002). She came to Dartmouth College in 2002 as a NASA Spacegrant Visiting Young Scientist and joined the regular faculty in 2005.

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Research Interests (see my research page.)

Professor Millan's research uses X-ray observations to study the processes acting on high energy particles in astrophysical environments. Her research includes the use of high-altitude scientific balloons to study Earth's radiation belts, specifically the loss of relativistic electrons from the outer radiation belts into Earth's atmosphere. She is currently principal investigator for the Balloon Array for Radition belt Relativistic Electron Losses (BARREL) project. Her group carried out four balloon campaigns in association with the NASA Van Allen Probes. The group also uses similar instrumentation to observe X-rays produced in association with lightning and laboratory sparks These observations provide a new tool for studying the breakdown process.  

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244 Wilder
Physics and Astronomy
B.A. University of California at Berkeley
Ph.D. University of California at Berkeley

Selected Publications

Shekhar S., R.M. Millan, and D.M. Smith (2017), A Statistical Study of the Spatial Extent of Relativistic Electron Precipitation with Polar Orbiting Environmental Satellites, J. Geophys. Res., 122, doi:10.1002/2017JA024716.

daSilva C.L., R.M. Millan, D.G McGaw, C.T Yu, A.S Putter, J. LaBelle, and J.R Dwyer (2017), Laboratory measurements of X-ray emissions from centimeter-long streamer corona discharges, Geophys. Res. Lett., 44,  doi:10.1002/2017GL075262.

Anderson, B. R., S. Shekhar, R. M. Millan, A. B. Crew, H. E. Spence, D. M. Klumpar, J. B. Blake, T. P. O’Brien, and D. L. Turner (2017), Spatial scale and duration of one microburst region on 13 August 2015, J. Geophys. Res. Space Physics, 122, 5949–5964, doi:10.1002/2016JA023752.

Halford, A. J., S. L. McGregor, M. K. Hudson, R. M. Millan, B. T. Kress (2016), BARREL observations of a Solar Energetic Electron and Solar Energetic Proton event, J. Geophys. Res. Space Physics, 121, 42054216,doi:10.1002/2016JA022462

Blum, L. W., A. Halford, R. Millan, J. W. Bonnell, J. Goldstein, M. Usanova, M. Engebretson, M. Ohnsted, G. Reeves, H. Singer, et al. (2015), Observations of coincident EMIC wave activity and duskside energetic electron precipitation on 18-19 January 2013, Geophys. Res. Lett., 42, 57275735, doi:10.1002/2015GL065245.

Breneman, A. W., A. Halford, R. Millan, M. McCarthy, J. Fennell, J. Sample, L. Woodger, G. Hospodarsky, J.R. Wygant, C. A. Cattell, J. Goldestein, D. Malaspina, and C.A. Kletzing (2015), Observations of a Global Coherence Scale Modulating Electron Loss Due to Plasmaspheric Hiss, Nature, 523, 193-195, doi:10.1038/nature14515.

Woodger, L. A., A. J. Halford, R. M. Millan, M. P. McCarthy, D. M. Smith, G. S. Bowers, J. G. Sample, B. R. Anderson, and X. Liang (2015), A summary of the BARREL campaigns: Technique for studying electron precipitation. J. Geophys. Res. Space Physics, 120, 4922–4935. doi: 10.1002/2014JA020874.

Millan, R. M., et al. (2013), The Balloon Array for RBSP Relativistic Electron Losses (BARREL), Space Science Reviews, doi:10.1007/s11214-013-9971-z.

 Millan, R. M. and D. N. Baker (2012), Acceleration of Particles to High Energies in Earth’s Radiation Belts, in the ISSI Workshop Book, “Particle Acceleration in Cosmic Plasmas” and Space Science Reviews, doi:10.1007/s11214-012-9941-x.

Yando, K. B., R. M. Millan, J. C. Green, and D. S. Evans (2011), A Monte Carlo Simulation of the
POES Medium Energy Proton and Electron Detector, J. Geophys. Res., 116, A10231, doi:10.1029/2011JA016671.

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