Faculty may submit research here.
Theses/Dissertations from 2022
Attempts to Measure Nanosecond Resolved Electronic Dynamics of Charge Density Wave Phase Transition in 1T-TaS2, Ben Campbell
Location and Calibration of Lightning Pulses from LOFAR Radiation Measurements, Nicholas R. Demers
Comparing TWINS Ion Temperature Maps with MMS, AMPERE, and THEMIS Observations during July 26, 2017 Reconnection Event, Isabella M. Householder
Low-frequency Waves due to Newborn Interstellar Pickup He+ Observed by the Ulysses Spacecraft, Anastasia V. Marchuk and Charles Smith
Measuring the Ne/O Ratio for IMAP-Lo, Ryan J. Murphy
Development of a Fluxgate Magnetometer Model, Eleonora Olsmats
Development of a Fluxgate Magnetometer Model, Eleonora Olsmats
Generally Covariant Theory of Multipole Moment Conserving Quasiparticles, Gavin Eric Riley
A Review of Monte Carlo Methods and Their Application in Medical Physics for Simulating Radiation Transport, Joe Shields
Theses/Dissertations from 2021
Thermally Driven Topology and the Topological Hall Effect in Chiral Magnets, Tan Dao
On the Stability of Neon Cluster Ions – Evidence for Isomeric Structures, Siegfried Kollotzek, Stefan Bergmeister, Lukas Tiefenthaler, Simon Albertini, Elisabeth Gruber, Fabio Zappa, Paul Scheier, and Olof Echt
Submissions from 2020
Solvation of Ions in Helium, Tomas Gonzalez-Lezana, Olof Echt, Michael Gatchell, Massimiliano Bartolomei, Jose Campos-Martinez, and Paul Scheier
Investigating the time scales of electromechanical motion in graphene drumheads using pump-probe spectroscopy with STM, Alana P. Gudinas
Analysis and Implementation of the Maximum Likelihood Expectation Maximization Algorithm for FIND, Angus Boyd Jameson
Electron Attachment and Electron Ionization of Helium Droplets Containing Clusters of C60 and Formic Acid, Masoomeh Mahmoodi-Darian, Elias Jabbour Al Maalouf, Samuel Zottl, Paul Scheier, and Olof Echt
Searching for the Common Suprathermal Power Law Tail in Parker Solar Probe's ISOIS Data, Asher S. Merrill
Quantifying Electron Precipitation in the Van Allen Radiation Belts, Timothy Raeder
Proton Transfer at Subkelvin Temperatures, Lukas Tiefenthaler, Siegfried Kollotzek, Andrew M. Ellis, Paul Scheier, and Olof Echt
Isotope Enrichment in Neon Clusters Grown in Helium Nanodroplets, Lukas Tiefenthaler, Siegfried Kollotzek, Michael Gatchell, Klavs Hansen, Paul Scheier, and Olof Echt
Decreasing Uncertainty in Nuclear Magnetic Resonance Measurements Through the Application of Pappus Chains, Ryan Williams
Theses/Dissertations from 2019
Charged Particle Filter for Entrance of IMAP-Lo, Daniel Abel
Roadmap on Photonic, Electronic and Atomic Collision Physics III. Heavy Particles: With Zero to Relativistic Speeds, Friedrich Aumayr, Kiyoshi Ueda, Emma Sokell, Stephan Schippers, Hossein Sadeghpour, Frederic Merkt, Thomas F. Gallagher, F. Barry Dunning, Paul Scheier, Olof Echt, Tom Kirchner, Stephan Fritzsche, Andrey Surzhykov, Xinwen Ma, Roberto Rivarola, Omar Fojon, Lokesh Tribedi, Emily Lamour, Jose R. Crespo Lopez-Urrutia, Yuri A. Litvinov, Vladimir Shabaev, Henrik Cederquist, Henning Zettergren, Marika Schleberger, Richard A. Wilhelm, Toshiyuki Azuma, Philippe Boduch, Henning T. Schmidt, and Thomas Stohlker
Analysis of Autoguiding for Exoplanet Transit Research at the UNH Observatory, Anthony Cappuccio
Simple guide to starting a research group, Patricia Condon, Julie Simpson, Jessica A. Bolker, Summer B. Cook, Eleanor M. Jaffee, Cari A. Moorhead, Cesar J. Rebellon, Nathan A. Schwadron, Michael J. Simmons, R. Scott Smith, John E. Sparrow, May-Win Thein, and James Wible
Improving Photometry and Astrophotography by Eliminating Dark Frames and Flat Fields, Tom C. Ireland
2D Ion Temperature Maps from TWINS ENA data: IDL scripts, Amy Keesee, Earl Scime, Anna Zaniewski, and Roxanne Katus
UNH Observatory Exoplanet Transit Depth Limit, Nicholas R. Larose
Electron Attachment and Electron Ionization of Formic Acid Clusters Embedded in Helium Nanodroplets, Masoomeh Mahmoodi-Darian, Linnea Lundberg, Samuel Zottl, Paul Scheier, and Olof Echt
Solvation of Silver Ions in Noble Gases He, Ne, Ar, Kr, and Xe, Masoomeh Mahmoodi-Darian, Paul Martini, Lukas Tiefenthaler, Jaroslav Kocisek, Paul Scheier, and Olof Echt
Charged Clusters of C60 and Au or Cu: Evidence for Stable Sizes and Specific Dissociation Channels, Paul Martini, Marcelo Goulart, Lorenz Kranabetter, Norbert Gitzl, Bilal Rasul, Paul Scheier, and Olof Echt
Atomic Gold Ions Clustered with Noble Gases: Helium, Neon, Argon, Krypton, and Xenon, Paul Martini, Lorenz Kranabetter, Marcelo Goulart, Bilal Rasul, Michael Gatchell, Paul Scheier, and Olof Echt
3D-Printed mm-Wave Lenses for DNP Target System, Kellie McGuire
Determination of Multi-Messenger Signals from Matter Outflows of Merger Systems, Ronny Nguyen
Normalization of Leadville Neutron Monitor to Climax Neutron Monitor, Brian J. O'Connor
Nuclear Magnetic Resonance with a Low-Cost Vector Network Analyzer, Ryan Williams
Decreasing Uncertainty in Nuclear Magnetic Resonance Measurements Through the Application of Pappus Chains, Ryan M. Williams
Submissions from 2018
Doubly Charged Coronene Clusters – Much Smaller than Previously Observed, Masoomeh Mahmoodi-Darian, Stefan Raggl, Michael Renzler, Marcelo Goulart, Stefan E. Huber, Andreas Mauracher, Paul Scheier, and Olof Echt
Cold Physics and Chemistry: Collisions, Ionization and Reactions Inside Helium Nanodroplets Close to Zero K, Andreas Mauracher, Andrew M. Ellis, Olof Echt, S. Yang, D. K. Bohme, Johannes Postler, Alexander Kaiser, Stephan Denifl, and Paul Scheier
Helium Nanodroplets Doped with Copper and Water, Stefan Raggl, Norbert Gitzl, Paul Martini, Paul Scheier, and Olof Echt
Submissions from 2017
The Structure of Coronene Cluster Ions Inferred from H2 Uptake in the Gas Phase, Marcelo Goulart, Martin Kuhn, Bilal Rasul, Johannes Postler, Michael Gatchell, Henning Zettergren, Paul Scheier, and Olof Echt
Preface to the Special Issue “ISSPIC XVIII: International Symposium on Small Particles and Inorganic Clusters 2016,”, Hannu Hakkinen, Arne Rosen, Olof Echt, and Mika Pettersson
On Enhanced Hydrogen Adsorption on Alkali (Cesium) Doped C60 and Effects of the Quantum Nature of the H2 molecule on Physisorption Energies, Alexander Kaiser, Michael Renzler, Lorenz Kranabetter, Matthias Schwarzler, Rajendra Parajuli, Olof Echt, and Paul Scheier
Cs+ Solvated in Hydrogen – Evidence for Several Distinct Solvation Shells, Lorenz Kranabetter, Marcelo Goulart, Abid Aleem, Thomas Kurzthaler, Martin Kuhn, Erik Barwa, Michael Renzler, Lukas Grubwieser, Matthias Schwarzler, Alexander Kaiser, Paul Scheier, and Olof Echt
Inferring the Heliospheric Magnetic Field Back through Maunder Minimum, Fatemeh Rahmanifard, Nathan A. Schwadron, Charles W. Smith, Kenneth G. McCracken, Katharine A. Duderstadt, Noe E. Lugaz, and Molly L. Goelzer
Submissions from 2016
Adsorption of Sodium and Cesium on Aggregates of C60, Martina Harnisch, Matthias Daxner, Paul Scheier, and Olof Echt
Fission of Multiply Charged Cesium and Potassium Clusters in Helium Droplets - Approaching the Rayleigh Limit, Michael Renzler, Martina Harnisch, Matthias Daxner, Lorenz Kranabetter, Martin Kuhn, Paul Scheier, and Olof Echt
Positively and Negatively Charged Cesium and (C60)mCsn Cluster Ions, Michael Renzler, Lorenz Kranabetter, Marcelo Goulart, Paul Scheier, and Olof Echt
Nitrogen Cluster Anions, Nikolaus Weinberger, Johannes Postler, Paul Scheier, and Olof Echt
Submissions from 2015
Butterfly pitch-angle distribution of relativistic electrons in the outer radiation belt: Evidence of nonadiabatic scattering, Nikolai O. Artemyev, O. V. Agapitov, F. S. Mozer, and Harlan E. Spence
A Soft Gamma-Ray Concentrator Using Thin-Film Multilayer Structures, Peter F. Bloser, Paul H. Aliotta, Olof Echt, James E. Krzanowski, Jason S. Legere, Mark L. McConnell, Farzane Shirazi, John G. Tsavalas, Emily N. Wong, and R. Marc Kippen
Measuring the Heat Capacity of Large Isolated Molecules via Gas-Phase Collisions: C60, Rongping Deng and Olof Echt
Analysis of plasmaspheric hiss wave amplitudes inferred from low-altitude POES electron data: Technique sensitivity analysis, M. de Soria-Santacruz, W. Li, R. M. Thorne, Q. Ma, J. Bortnik, B. Ni, C A. Kletzing, W. S. Kurth, G. B. Hospodarsky, Harlan E. Spence, Geoffrey Reeves, J. B. Blake, and Joseph F. Fennell
Energetic, relativistic and ultra-relativistic electrons: Comparison of long-term VERB code simulations with Van Allen Probes measurements, A. Drozdov, Y. Y. Shprits, K. Orlova, A. C. Kellerman, D. A. Subbotin, D. N. Baker, Harlan E. Spence, and Geoffrey Reeves
Van Allen Probes show that the inner radiation zone contains no MeV electrons: ECT/MagEIS data, J. F. Fennell, S. Claudepierre, J. B. Blake, T. P. O'Brien, J. H. Clemmons, D. N. Baker, Harlan E. Spence, and Geoffrey Reeves
Shock-induced prompt relativistic electron acceleration in the inner magnetosphere, J. C. Foster, J. R. Wygant, M. K. Hudson, A. J. Boyd, D. N. Baker, P. J. Erickson, and Harlan E. Spence
Adsorption of Helium on Isolated C60 and C70 Anions, Martina Harnisch, Nikolaus Weinberger, Stephan Denifl, Paul Scheier, and Olof Echt
Modification of electronic surface states by graphene islands on Cu(111), Shawna M. Hollen, G A. Gambrel, S J. Tjung, N M. Santagata, Ezekiel Johnston-Halperin, and Jay A. Gupta
Scanning tunneling microscopy studies of graphene and hydrogenated graphene on Cu, Shawna M. Hollen, G A. Gambrel, S J. Tjung, N M. Santagata, Ezekiel Johnston-Halperin, and Jay A. Gupta
Dielectric breakdown weathering of the Moon's polar regolith, Andrew P. Jordan, T. J. Stubbs, Jody K. Wilson, Nathan A. Schwadron, and Harlan E. Spence
Transport in thin insulating films close to the Boson-Fermion Crossover, J C. Joy, X Zhang, Shawna M. Hollen, C Zhao, G. E. Fernandes, J. M. Xu, and J M. Valles Jr.
Unraveling the drivers of the storm time radiation belt response, E. K.J. Kilpua, H. Hietala, D. L. Turner, H. E.J. Koskinen, T. I. Pulkkinen, J. V. Rodriguez, Geoffrey Reeves, S. Claudepierre, and Harlan E. Spence
Electron Attachment Cross Sections of Cluster Ions from CO2 and N2O, Martin Knapp, Olof Echt, Dietmar Kreisle, Tilmann D. Mark, and Ekkehard Recknagel
Van Allen Probes observations linking radiation belt electrons to chorus waves during 2014 multiple storms, Si Liu, Fuliang Xiao, Chang Yang, Yihua He, Qinghua Zhou, C A. Kletzing, W. S. Kurth, G. B. Hospodarsky, Harlan E. Spence, Geoffrey Reeves, H. O. Funsten, J. B. Blake, D. N. Baker, and J. R. Wygant
Extreme geomagnetic disturbances due to shocks within CMEs, Noe E. Lugaz, Charles J. Farrugia, Chia-Lin L. Huang, and Harlan E. Spence
Modeling inward diffusion and slow decay of energetic electrons in the Earth's outer radiation belt, Q. Ma, W. Li, R. M. Thorne, B. Ni, C A. Kletzing, W. S. Kurth, G. B. Hospodarsky, Geoffrey Reeves, M. G. Henderson, Harlan E. Spence, D. N. Baker, J. B. Blake, J. F. Fennell, S. Claudepierre, and V. Angelopoulos
Update on Radiation Dose From Galactic and Solar Protons at the Moon Using the LRO/CRaTER Microdosimeter, J. E. Mazur, Cary Zeitlin, Nathan A. Schwadron, M. D. Looper, Lawrence W. Townsend, J. B. Blake, and Harlan E. Spence
Study of EMIC wave excitation using direct ion measurements, Kyungguk Min, Kaijun Liu, J. Bonnell, Aaron W. Breneman, Richard E. Denton, H. O. Funsten, Joerg-Micha Jahn, C A. Kletzing, W. S. Kurth, B. A. Larsen, Geoffrey Reeves, Harlan E. Spence, and J. R. Wygant
Disorder influences the quantum critical transport at a superconductor-to-insulator transition, H Q. Nguyen, Shawna M. Hollen, J M. Valles Jr., J Shainline, and J. M. Xu
Formation of the oxygen torus in the inner magnetosphere: Van Allen Probes observations, M. Nose, S. Oimatsu, K. Keika, C. A. Kletzing, W. S. Kurth, S. De Pascuale, Charles W. Smith, R. J. MacDowall, S. Nakano, Geoffrey Reeves, Harlan E. Spence, and Bradford Larsen
On the use of drift echoes to characterize on-orbit sensor discrepancies, T. P. O'Brien, S. Claudepierre, M. Looper, J. B. Blake, J. F. Fennell, J. H. Clemmons, J. Roeder, S. G. Kanekal, J. W. Manweiler, D. G. Mitchell, M. Gkioulidou, L. J. Lanzerotti, Harlan E. Spence, Geoffrey Reeves, and D. N. Baker
Disappearance of plasmaspheric hiss following interplanetary shock, Zhenpeng Su, Hui Zhu, Fuliang Xiao, Yuming Wang, Chao Shen, Min Zhang, Shui Wang, C A. Kletzing, W. S. Kurth, G. B. Hospodarsky, Harlan E. Spence, Geoffrey Reeves, H. O. Funsten, J. B. Blake, D. N. Baker, and J. R. Wygant
Plasmatrough exohiss waves observed by Van Allen Probes: Evidence for leakage from plasmasphere and resonant scattering of radiation belt electrons, Hui Zhu, Zhenpeng Su, Fuliang Xiao, Huinan Zheng, Yuming Wang, Chao Shen, Tao Xian, Shui Wang, C A. Kletzing, W. S. Kurth, G. B. Hospodarsky, Harlan E. Spence, Geoffrey Reeves, H. O. Funsten, J. B. Blake, and D. N. Baker
Submissions from 2014
Gradual diffusion and punctuated phase space density enhancements of highly relativistic electrons: Van Allen Probes observations, D. N. Baker, A. Jaynes, X. Li, M. G. Henderson, S. G. Kanekal, Geoffrey Reeves, Harlan E. Spence, S. Claudepierre, Joseph F. Fennell, M. K. Hudson, R. M. Thorne, J. C. Foster, P. J. Erickson, D. M. Malaspina, J. R. Wygant, A. J. Boyd, C A. Kletzing, A. Drozdov, and Y. Y. Shprits
Testing and simulation of silicon photomultiplier readouts for scintillators in high-energy astronomy and solar physics, Peter F. Bloser, Jason S. Legere, Chris Bancroft, Jonathan R. Wurtz, Camden Ertley, Mark L. McConnell, and James M. Ryan
Quantifying the radiation belt seed population in the 17 March 2013 electron acceleration event, A. J. Boyd, Harlan E. Spence, S. Claudepierre, Joseph F. Fennell, J. B. Blake, D. N. Baker, Geoffrey Reeves, and D. L. Turner
Generation of unusually low frequency plasmaspheric hiss, Lunjin Chen, R. M. Thorne, J. Bortnik, Wen Li, Richard B. Horne, Geoffrey Reeves, C A. Kletzing, W. S. Kurth, G. B. Hospodarsky, Harlan E. Spence, J. B. Blake, and Joseph F. Fennell
REPAD: An empirical model of pitch angle distributions for energetic electrons in the Earth's outer radiation belt, Yue Chen, R. Friedel, M. G. Henderson, S. Claudepierre, S. K. Morley, and Harlan E. Spence
Doubly Charged CO2 Clusters Formed by Ionization of Doped Helium Nanodroplets, Matthias Daxner, Stephan Denifl, Paul Scheier, and Olof Echt
Nitrate deposition to surface snow at Summit, Greenland, following the 9 November 2000 solar proton event, Katherine A. Duderstadt, Jack E. Dibb, Charles H. Jackman, Cora E. Randall, Stanley C. Solomon, Michael J. Mills, Nathan A. Schwadron, and Harlan E. Spence
Van Allen Probes observations of direct wave-particle interactions, Joseph F. Fennell, J. Roeder, W. S. Kurth, M. G. Henderson, B. A. Larsen, G. B. Hospodarsky, J. R. Wygant, S. Claudepierre, J. B. Blake, Harlan E. Spence, J. H. Clemmons, H. O. Funsten, C A. Kletzing, and Geoffrey Reeves
Prompt energization of relativistic and highly relativistic electrons during a substorm interval: Van Allen Probes observations, J. C. Foster, P. J. Erickson, D. N. Baker, S. Claudepierre, C A. Kletzing, W. S. Kurth, Geoffrey Reeves, S. A. Thaller, Harlan E. Spence, Y. Y. Shprits, and J. R. Wygant
Simulation of Van Allen probes plasmapause encounters, J. Goldstein, S. De Pascuale, C A. Kletzing, W. S. Kurth, K J. Genestreti, R. M. Skoug, Bradford Larsen, Lynn M. Kistler, Christoforos Mouikis, and Harlan E. Spence
Interactions of energetic electrons with ULF waves triggered by interplanetary shock: Van Allen Probes observations in the magnetotail, Y. X. Hao, Q. G. Zong, Y. F. Wang, X. Z. Zhou, Hui Zhang, S. Y. Fu, Z. Y. Pu, Harlan E. Spence, J. B. Blake, J. Bonnell, J. R. Wygant, and C A. Kletzing
Helium Droplets Doped with Sulfur and C60, Martina Harnisch, Nikolaus Weinberger, Stephan Denifl, Paul Scheier, and Olof Echt
Fate of the Bose insulator in the limit of strong localization and low Cooper-pair density in ultrathin films, Shawna M. Hollen, G. E. Fernandes, J. M. Xu, and J M. Valles Jr.
A pair production telescope for medium-energy gamma-ray polarimetry, S Hunter, Peter F. Bloser, Gerardo O. Depaola, Michael P. Dion, Georgia A. DeNolfo, Andrei Hanu, Marcos Iparraguirre, Jason S. Legere, Francesco Longo, Mark L. McConnell, Suzanne F. Nowicki, James M. Ryan, Seunghee Son, and Floyd Stecker
Deep dielectric charging of regolith within the Moon's permanently shadowed regions, Andrew P. Jordan, T. J. Stubbs, Jody K. Wilson, Nathan A. Schwadron, Harlan E. Spence, and Colin J. Joyce
Simulations of inner magnetosphere dynamics with an expanded RAM-SCB model and comparisons with Van Allen Probes observations, Vania K. Jordanova, Y. Yu, J. T. Niehof, R. M. Skoug, Geoffrey Reeves, C A. Kletzing, Joseph F. Fennell, and Harlan E. Spence
Radiation modeling in the Earth and Mars atmospheres using LRO/CRaTER with the EMMREM Module, Colin J. Joyce, Nathan A. Schwadron, Jody K. Wilson, Harlan E. Spence, Justin Kasper, Michael J. Golightly, J. B. Blake, Lawrence W. Townsend, Anthony Case, E. Semones, Sonya S. Smith, and Cary Zeitlin
Evolution of the Cooper Pair Insulator Phase in a-Bi Films Grown on Nanohoneycomb Substrates with Varying Surface Topography, J C. Joy, X Zhang, C Zhao, Shawna M. Hollen, J M. Valles Jr., G. E. Fernandes, and J M. Xu
Quantifying hiss-driven energetic electron precipitation: A detailed conjunction event analysis, W. Li, B. Ni, R. M. Thorne, J. Bortnik, Y. Nishimura, J. C. Green, C A. Kletzing, W. S. Kurth, G. B. Hospodarsky, Harlan E. Spence, Geoffrey Reeves, J. B. Blake, Joseph F. Fennell, S. Claudepierre, and X. Gu
Radiation belt electron acceleration by chorus waves during the 17 March 2013 storm, W. Li, R. M. Thorne, Q. Ma, B. Ni, J. Bortnik, D. N. Baker, Harlan E. Spence, Geoffrey Reeves, S. G. Kanekal, J. C. Green, C A. Kletzing, W. S. Kurth, G. B. Hospodarsky, J. B. Blake, Joseph F. Fennell, and S. Claudepierre
Investigation of EMIC wave scattering as the cause for the BARREL 17 January 2013 relativistic electron precipitation event: A quantitative comparison of simulation with observations, Zan Li, Robyn M. Millan, Mary K. Hudson, Leslie A. Woodger, David M. Smith, Yue Chen, R. Friedel, J. V. Rodriguez, Mark J. Engebretson, J. Goldstein, Joseph F. Fennell, and Harlan E. Spence
The trapping of equatorial magnetosonic waves in the Earth’s outer plasmasphere, Q. Ma, W Li, L. Chen, R. M. Thorne, C A. Kletzing, W. S. Kurth, G. B. Hospodarsky, Geoffrey Reeves, M. G. Henderson, and Harlan E. Spence
The Energetic Particle Detector (EPD) Investigation and the Energetic Ion Spectrometer (EIS) for the Magnetospheric Multiscale (MMS) Mission, B. H. Mauk, J. B. Blake, D. N. Baker, J. H. Clemmons, Geoffrey Reeves, Harlan E. Spence, S. E. Jaskulek, C. E. Schlemm, L. E. Brown, Steve Cooper, J. V. Craft, J. F. Fennell, R. S. Gurnee, C. M. Hammock, J. R. Hayes, P. A. Hill, G. C. Ho, J. C. Hutcheson, A. D. Jacques, S. Kerem, D. G. Mitchell, K. S. Nelson, N. P. Paschalidis, E. Rossano, M. R. Stokes, and J. H. Westlake
Resonant scattering of energetic electrons by unusual low-frequency hiss, Binbin Ni, Wen Li, R. M. Thorne, J. Bortnik, Qianli Ma, Lunjin Chen, C A. Kletzing, W. S. Kurth, G. B. Hospodarsky, Geoffrey Reeves, Harlan E. Spence, J. B. Blake, Joseph F. Fennell, and S. Claudepierre
An empirically observed pitch-angle diffusion eigenmode in the Earth's electron belt near L* = 5.0, T. P. O'Brien, S. Claudepierre, J. B. Blake, Joseph F. Fennell, J. H. Clemmons, J. Roeder, Harlan E. Spence, Geoffrey Reeves, and D. N. Baker
Radiation environment at the Moon: Comparisons of transport code modeling and measurements from the CRaTER instrument, Jamie A. Porter, Lawrence W. Townsend, Harlan E. Spence, Michael J. Golightly, Nathan A. Schwadron, Justin Kasper, Anthony Case, J. B. Blake, and Cary Zeitlin