We are interested in polarized electron physics. Our work involves studies of polarized electrons scattering from atomic and chiral molecular targets, the development of novel sources of polarized electrons and electron polarimeters, and investigations of the fundamental nature of the electron. We are funded by the Physics Division of the National Science Foundation.
2009
Spin Torque on Molecular Rotation Induced by Polarized Electrons, J. W. Maseberg and Timothy J. Gay
2007
Radiation trapping in rubidium optical pumping at low buffer-gas pressures, M. A. Rosenberry, J. P. Reyes, D. Tupa, and Timothy J. Gay
2006
Production of excited atomic hydrogen and deuterium from H2 and D2 photodissociation, J. D. Bozek, J. E. Furst, Timothy J. Gay, H. Gould, A. L. D. Kilcoyne, J. R. Machacek, F. Martin, K. W. McLaughlin, and J. L. Sanz-Vicario
Fluorescence polarization of helium negative-ion resonances excited by polarized electron impact, J. W. Maseberg and Timothy J. Gay
An investigation of electron helicity density in bromocamphor and dibromocamphor as a source of electron circular dichroism, A.M. Scheer, Gordon A. Gallup, and Timothy J. Gay
2005
Angular momentum partitioning and the subshell multipole moments in impulsively excited argon ions, H. M. Al-Khateeb, B. G. Birdsey, and Timothy J. Gay
Angular momentum partitioning and the subshell multipole moments in impulsively excited argon ions, H. M. Al-Khateeb, B. G. Birdsey, and Timothy J. Gay
Angular momentum partitioning and the subshell multipole moments in impulsively excited argon ions, H. M. Al-Khateeb, B. G. Birdsey, and Timothy J. Gay
2004
Spin-Exchange-Induced Circularly Polarized Molecular Fluorescence, A. S. Green, Gordon A. Gallup, and M. A. Rosenberry
Spin-Exchange-Induced Circularly Polarized Molecular Fluorescence, A.S. Green, Gordon A. Gallup, M.A. Rosenberry, and Timothy J. Gay
2002
Effect of Relativistic Many-Electron Interactions on Photoelectron Partial Wave Probabilities, K. W. McLaughlin, Orhan Yenen, Duane H. Jaecks, Timothy J. Gay, M. M. Sant'Anna, D. Calabrese, and B. Thaden-Jordan
2001
A theoretical study of the effects of insulators on electron transport through electrostatic tube lenses, T. G. Anderson, B. G. Birdsey, S. M. Woeher, M. A. Rosenberry, and Timothy J. Gay
Quantum-Mechanical Analysis of a Longitudinal Stern-Gerlach Effect, Gordon A. Gallup, Herman Batelaan, and Timothy J. Gay
Monte Carlo studies of Mott scattering asymmetries from gold foils, M. A. Khakoo, D. Roundy, C. Hicks, N. Margolis, E. Yeung, A. W. Ross, and Timothy J. Gay
2000
Angular Momentum Partitioning and Hexacontatetrapole Moments in Impulsively Excited Argon Ions, H. M. Al-Khateeb, B. G. Birdsey, and Timothy J. Gay
1999
A simplified GaAs polarized electron source, H. M. Al-Khateeb, B. G. Birdsey, T. C. Bowen, A. S. Green, M. E. Johnston, and Timothy J. Gay
Optically Pumped Electron Spin Filter, Herman Batelaan, A. S. Green, B. A. Hitt, and Timothy J. Gay
Near-threshold measurement of integrated Stokes parameters for Kr excited by polarized electrons, B. G. Birdsey, H. M. Al-Khateeb, M. E. Johnston, T. C. Bowen, Timothy J. Gay, V. Zeman, and K. Bartschat
1998
Batelaan and Gay Reply, Herman Batelaan and Timothy J. Gay
1997
Stern-Gerlach Effect for Electron Beams, Herman Batelaan, Timothy J. Gay, and J. J. Schwendiman
Electron-Collision-Induced Alignment of Rare Gases near Threshold, V. Zeman, K. Bartschat, Timothy J. Gay, and K. W. Trantham
1996
Current Status Of The Saddle-Point Model, Timothy J. Gay
Optical electron polarimetry with heavy noble gases, Timothy J. Gay, J. E. Furst, K. W. Trantham, and W. M. K. P. Wijayaratna
TWO-CENTER EFFECTS IN ION-ATOM COLLISIONS: A Symposium in Honor of M. Eugene Rudd, Lincoln, NE May 1994 — Contents and Preface, Timothy J. Gay and Anthony F. Starace
An inline optical electron polarimeter, K. W. Trantham, Timothy J. Gay, and R. J. Vandiver
1994
Energy spread and ion current measurements of several ion sources, A. D. Gaus, W. T. Htwe, J. A. Brand, Timothy J. Gay, and M. Schulz
Clean ultrahigh vacuum system with single-structure diffusion pumps, Timothy J. Gay, M.C. Fritts, J.E. Furst, M.A. Khakoo, E.R. Mell, M.T. Seiger, and M.W.K.P. Wijayaratna
Clean ultrahigh vacuum system with single-structure diffusion pumps, Timothy J. Gay, M.C. Fritts, J.E. Furst, M.A. Khakoo, E.R. Mell, M.T. Seiger, and M.W.K.P. Wijayaratna
Superelastic and inelastic He2++He state-selective electron capture, V. D. Irby, Timothy J. Gay, J. T. Park, S. W. Bross, and A. D. Gaus
1993
Investigation of spin-orbit effects in the excitation of noble gases by spin-polarized electrons, J. E. Furst, W. M. K. P. Wijayaratna, D. H. Madison, and Timothy J. Gay
High-vottage variable resistor for ion energy spectroscopy, Timothy J. Gay, V. D. Irby, and S. P. Yallaly
1992
Production of a high-density state-selected metastable neon beam, J. A. Brand, J. E. Furst, Timothy J. Gay, and L. D. Shearer
Acoustic and perceptual effects of changes in vocal tract constrictions for vowels, Timothy J. Gay, L.-J. Boe, and P. Perrier
Mott electron polarimetry, Timothy J. Gay and F. B. Dunning
Extrapolation procedures in Mott electron polarimetry, Timothy J. Gay, M. A. Khakoo, J. A. Brand, J. E. Furst, W. V. Meyer, W. M. K. P. Wijayaratna, and F. B. Dunning
Electron production in proton collisions with atoms and molecules: energy distributions, Millard E. Rudd, Y.-K. Kim, D. H. Madison, and Timothy J. Gay
State-selective capture in collisions of protons with noble gases, M. Schulz, D. M. Blakenship, S. W. Bross, A. D. Gaus, Timothy J. Gay, W. Htwe, J. T. Park, and J. L. Peacher
Angular-differential cross sections for H(2p) formation in intermediate-energy proton-helium collisions, D. G. Seely, S. W. Bross, A. D. Gaus, J. W. Edwards, D. R. Schultz, Timothy J. Gay, J. T. Park, and J. L. Peacher
1990
Measurement of parity violation in the elastic scattering of polarized electrons from 12C, P. A. Souder, R. Holmes, D. - H. Kim, K. S. Kumar, M. E. Schulze, K. Isakovich, G. W. Dodson, K. W. Dow, M. Farkhondeh, S. Kowalski, M. S. Lubell, J. Bellanca, M. Goodman, S. Patch, Richard Wilson, G. D. Cates, S. Dhawan, Timothy J. Gay, V. W. Hughes, A. Magnon, R. Michaels, and H. R. Schaefer
1989
Orientation of hydrogen 2p after tilted-foil excitation, C. J. Liu, Timothy J. Gay, and K. P. Schuler
Elastic angular differential cross sections for quasi-oneelectron collision systems at intermediate energies: (Na+, Li+)+H and (Mg+, Be+)+He, J. L. Peacher, E. Redd, D. G. Seely, Timothy J. Gay, D. M. Blakenship, and J. T. Park
1988
Projectile-charge dependence of ejected-electron spectra, V. D. Irby, Timothy J. Gay, J. Wm. Edwards, E. B. Hale, M. L. McKenzie, and R. E. Olson
Dynamics of Antimatter-Atom Collisions, R. E. Olson and Timothy J. Gay
1987
Saddle-point electrons in ionizing ion-atom collisions, R. E. Olson, Timothy J. Gay, H. G. Berry, and V. D. Irby
Angular-differential studies of excitation in quasi-oneelectron collisions at "high" energy, E. Redd, Timothy J. Gay, D. M. Blakenship, J. T. Park, J. L. Peacher, and D. G. Seely
1986
New insights into Mott-scattering electron polarimetry, G. D. Fletcher, Timothy J. Gay, and M. S. Lubell
1985
Experimental study of spin-exchange effects in elastic and ionizing collisions of polarized electrons with polarized hydrogen atoms, G. D. Fletcher, M. J. Alguard, Timothy J. Gay, V. W. Hughes, P.F. Wainwright, M. S. Lubell, and W. Raith
Angular differential cross sections for the excitation of 11S helium to the 21S and 21P states by 25- to 100-keV-proton impact, T. J. Kvale, D. G. Seely, D. M. Blakenship, E. Redd, Timothy J. Gay, M. Kimura, E. Rille, J. L. Peacher, and J. T. Park
1982
Measurement of Spin-Exchange Effects in Electron-Hydrogen Collisions: 90° Elastic Scattering from 4 to 30 eV, G. D. Fletcher, M. J. Alguard, Timothy J. Gay, V. W. Hughes, C. W. Tu, P. F. Wainwright, M. S. Lubell, W. Raith, and F. C. Tang
Measurement of spin-exchange effects in electronhydrogen collisions: Further studies of impact ionization, Timothy J. Gay, G. D. Fletcher, M. J. Alguard, V. W. Hughes, P. F. Wainwright, and M. S. Lubell
1981
Molecular effects in beam-foil collision-induced alignment of He I, Timothy J. Gay, H. G. Berry, and R. DeSerio
Energy dependence of alignment in foil collision-excited n=3 states of He I, Timothy J. Gay, H. G. Berry, R. DeSerio, H. P. Garnir, R. M. Schectman, N. Schaffel, R. D. Hight, and D.J. Burns
1980
Orientation and alignment of the 3p 1P and 4d 1D levels of neutral helium, R. M. Schectman, R. D. Hight, S. T. Chen, L. J. Curtis, H. G. Berry, Timothy J. Gay, and R. Deserio
1979
Temperature dependence of alignment production in He I by beam-foil excitation, Timothy J. Gay and H. G. Berry
1977
Alignment of helium excited by thin carbon foils, R. D. Hight, R. M. Schectman, H. G. Berry, G. Gabrielse, and Timothy J. Gay
Alignment of helium excited by thin carbon foils, R. D. Hight, R. M. Schectman, H. G. Berry, G. Gabrielse, and Timothy J. Gay