Past Experience
Prior to retiring from the University of Nevada, Reno (UNR) physics research faculty in 2002 (his last professional position), he was a member of Lockheed’s Research and Development Division (now called the Lockheed Martin Advanced Technology Center (ATC)) located in Palo Alto, CA. He joined that organization in 1970 and retired in 1998 as a Consulting Physicist and Senior Member of the Research Laboratory (SMRL). During his 28 years at the ATC he performed research in the Nuclear Science, Applied Physics, and Space Sciences Laboratories, respectively. He was an adjunct professor in the UNR Physics Department since 1987.
Duties at the ATC included group leader to perform basic and applied physics research in the fields of nuclear and atomic physics, laser plasma physics, surface studies of electronic materials, ion beam interactions with materials, the physics of thin films and interfaces, underground nuclear test x-ray and neutron diagnostics, above ground simulation x-ray diagnostics, space physics, and radiation detector and instrumentation technologies.
Before joining Lockheed Martin he was employed (1967 to 1970) at Yale University as an Instructor and Research Physicist in the Wright Nuclear Structure Laboratory where he taught and performed nuclear physics research using a tandem Van de Graaff ion beam accelerator. He was a guest research physicist at the University of Freiburg in Germany (1965 to 1967) where he performed similar research.
LIST OF PUBLICATIONS
“Auroral Electron Distributions Derived from Combined UV and X-ray Emissions”, J. Geophys. Res. Vol 106 (2001) p26081, N. Ostgaard, J. Stadsnes, J. Bjordal, G. Germany, G. K. Parks, R. R. Vondrak, S. A. Cummer, D. L. Chenete, and J. G. Pronko
“Global X-Ray Emission During an Isolated Substorm – A case Study, J. Atmos. Terr. Sol. Phys., Vol 62 {10} (2000) p889, N. Ostgaard,J. Stadsnes, J. Bjordal, R. R. Vondrak, S.A. Cummer, D. L. Chenette, M.Schulz, G.K. Parks, M.J. Brittnacher, D.L. McKenzie, and J. G. Pronko.
“Cause of the Localized Maximum of X-ray Emission in the Morning Sector – A Comparison with Electron Measurements, J. Geophys. Res., Vol 105 {A9} (2000) p20869, N. Ostgaard, J. Stadsnes, J. Bjordal, R. R. Vondrak, S.A. Cummer,D. L. Chenette, M. Schulz, and J. G. Pronko.
“Global Energy-Resolved X-Ray Images of Northern Aurora and Their Mappings to the Equatorial Magnetosphere, Sun-Earth Plasma Connections,Geophysical Monograph 109, 1999, with D. L. Chenette etal.
“Measurement of the Ballistic Phonon Component resulting from Nuclear and Electronic Recoils in Crystalline Silicon”, Physical ReviewB 54 (1996) 3244, A. T. Lee, B. Cabrera, B. L. Dougherty, M. J. Penn, J. G. Pronko, and S. Tamura.
“Advances in Stanford Phonon-Mediated Elementary Particle Detectors”, Physica B 219& 220 (1996) 744, with B. Cabrera etal.
“The Polar Ionospheric X-ray Imaging Experiment (PIXIE), SpaceScience Reviews 71 (1995) 386, with W. L. Imhoff etal.
“Real Time Radiometric Analysis of Soils”, Technology: Journalof the Franklin Institute 331A (1994) 217, J. G. Pronko, T. Wenstrand, R. May, and G. Van de Steeg.
“Prompt Phonon Signals from Particle Interactions in Si Crystals”, Journal of Low Temperature Physics 93 (1993) 365, B. Cabrera, B. L.Dougherty, A. T. Lee, M. J. Penn, J. G. Pronko, and B. A. Young.
“Measurement of the Ballistic Phonon Component resulting from Nuclear Recoils in Crystalline Silicon”, Physical Review Letters 71 (1993)1395, A. T. Lee, B. Cabrera, B. L. Dougherty, M. J. Penn, and J. G. Pronko.
“Charge-Carrier Collection by Superconducting Transition-Edge Sensors Deposited on Silicon”, Nuclear Instruments and Methods in PhysicsResearch A333 (1993) 464, B. L. Dougherty, B. Cabrera, A. T. Lee, M. J. Penn, B. A. Young, and J. G. Pronko .
“Density Measurements of a Pulsed Supersonic Gas Jet Using Nuclear Scattering”, Review of Scientific Instruments 64 (1993) 1744, J. G. Pronko, D. Kohler,I. V. Chapman, T. T. Bardin, P. C. Filbert, and J. D. Hawley.
“Absolute Fluorescence Yields of Long and Short Term Decay Components of Selected Scintillators”, Nuclear Instruments and Methods A322 (1993)121, J. G. Pronko, J. L. Guttman, G. A. Burginyon, and B. Jacoby.
“Observations of Ballistic Phonons in Crystalline Silicon Inducedby Gamma-ray and Neutron Interactions”, Phonon Scattering in Condensed Matter VII, Springer- Verlag Series in Solid State Sciences, Heidelberg,1993, A. T. Lee, B. Cabrera, B. L. Dougherty, M. J. Penn, J. G. Pronko, and B. A.Young.
“Studies of Athermal Phonon Pulses in Silicon Crystals from Alpha, X- ray, and Neutron Bombardment Experiments”, Phonon Scattering in Condensed Matter VII, Springer-Verlag Series in Solid State Sciences, Heidelberg, 1993, B. Cabrera, B. L. Dougherty, A. T. Lee, M. J. Penn, J. G. Pronko, and B. A.Young.
“Charge-carrier Collection in Superconducting Titanium Transition-EdgeSensors Deposited on High-Purity Silicon”, Phonon Scattering in Condensed Matter VII, Springer-Verlag Series in Solid State Sciences, Heidelberg,1993, B. L. Dougherty, B. Cabrera, A. T. Lee, M. J. Penn, J. G. Pronko, and B. A.Young.
“Phonon-Mediated Detectors for Dark Matter Searches and Neutrino Experiments”, Nuclear Physics B 28A (1992) 449, B. Cabrera, B. L.Dougherty, K. D. Irwin, A. T. Lee, J. G. Pronko, and B. A. Young.
“Deep Level Transient Spectroscopy Studies of 2.0 MeV 16O+ Ion Implanted n-InP”, Nucl. Inst. and Meth. in Phys. Res. B59/60 (1991) 623, w C. C. Tin, P. A. Barnes, T. T. Bardin, and J. G. Pronko.
“Adhesion Improvement of Au on GaAs Using Ion Beam Assisted Deposition”, Nucl. Inst. & Meth. in Phys. Res. B59/60 (1991) 249, A. J. Kellock, J. E. E. Baglin, T. T. Bardin, and J. G. Pronko.
“Near-Surface Defects Associated with 2.0 MeV 16O Ion Implantationin n-GaAs”, Appl. Phys. 70 (1991) 739, C. C. Tin, P. A. Barnes, T. T. Bardin, and J. G. Pronko.
“Characterization of MBE GaAs Layers Grown at 200?C – 300?C”, Mat. Res. Soc. Sym. 198 (1990) 383, C. R. Wie, K. Xie, T. T. Bardin, J. G. Pronko, D. C. Look, K. R. Evans, and C. E. Stutz.
“Defect Levels in the Near-Surface Region of 2.0-MeV 16O+ Ion Implanted n-GaAs”, Mat. Res. Soc. Sym. 163 (1990) 979, C. C. Tin, P. A. Barnes, T. T. Bardin, and J. G. Pronko.
“Adhesion Studies of Au Films on GaAs Using Ion-Assisted Deposition Techniques”, Mat. Res. Soc. Sym. 157 (1990) 19, A. J. Kellock, T. T. Bardin, P. W. Wang, , J. E. E. Baglin, and J. G. Pronko.
“MeV Ion Implantation Studies on LPE Films Grown on InP”, Nucl. Instr. and Meth. in Phys. Res. B40/41 (1989) 533, T. T. Bardin, J. G. Pronko, A. J. Mardinly, and C. R. Wie.
“Specific Heat Measurements on High Tc Superconductors using Accelerated Ions as the Heat Pulse”, Nucl. Instr. and Meth. in Phys. Res, B40/41 (1989)1088, I. V. Chapman, J. G. Pronko, T. T. Bardin, T. R. Fisher, J. D. Perez, and L. Senbetu.
“The Influence of Hydroxyls on the Adhesion of Au Films to GaAs”, Appl. Phys. Lett., 54 (1989) 173, T. T. Bardin, J. G. Pronko, and D. A. Kozak.
“Density Functional Theory for Thin Film Adhesion”, Mat. Res. Soc. Sym. Vol 119 (1988) 75, L. Senbetu, J. G. Pronko, and T. T. Bardin.
“Studies on the Adhesion of Au Films to GaAs”, Mat. Res. Soc. Sym. Proc. Vol 119 (1988) 147, T. T. Bardin, J. G. Pronko, L. Senbetu, and D.A. Kozak.
“The Effects of Oxygen Concentration in Sputter Deposited Molybdenum Films”, Thin Sold Films Vol 165 (1988) 243, T. T. Bardin, J. G. Pronko, R. C. Budhani, J. S. Lin, and R. F. Bunshah.
“Chemiluminescence Studies of the Thermo-oxidation of Peek”, Journal of Polymer Science, Polymer Chemistry Division, Vol 26 (1988) 1205, S. K. Brauman and J. G. Pronko.
“Thin Metal Film Adhesion Studies on GaAs”, Mat. Res. Soc. Sym. Proc. Vol 77 (1987) 731, T. T. Bardin, J. G. Pronko, and D. K. Kinell.
“Electrical and Structural Changes in GaAs Crystals from High-Energy, Heavy-Ion Implants”, Nuclear Instruments and Methods in Physics Research B24/25 (1987) 548, T. T. Bardin, J. G. Pronko, F. A. Junga, W. G. Opyd, A. J. Mardinly, F. Xiong, and T. A. Tombrello.
“Electrical and Metallurgical Characteristics of PtxSi1-x/n-GaAs Contacts”, Journal of Applied Physics 61 (1987) 1225, R. C. Budhani, R. F. Bunshah, T. T. Bardin, and J. G. Pronko.
“Hydrogen Induced Changes in the Metallurgical Interactions at PtSi-Si Interfaces”, Journal of Vacuum Science Technology A4 (1986) 3121, T. T. Bardin, J. G. Pronko, R. C. Budhani, and R. F. Bunshah.
“Microcomputer-Controlled Chemiluminescence Spectrometer for Solid Phase Samples,” Review of Scientific Instruments 57 (1986) 191, J. G. Pronko and I. V. Chapman.
“Quantification of Hydrogen in Surfaces and Thin Films Using a Non-Destructive Forward Scattering Technique”, Thin Solid Films 119 (1984) 429, T. T. Bardin, J. G. Pronko, and A. Joshi.
“Deposition Characteristics of Corrosive Salts in Electric Steam Generating Systems Using Ion Beam Analysis”, IEEE Transactions on Nuclear Science NS-30 (1983) 1305, J. G. Pronko, T. T. Bardin, I. V. Chapman, and D. Kohler.
“Calibration of a Mn-Activation Detector for Intense Pulsed Energetic Neutron Sources”, Review Scientific Instruments 53 (1982) 1228, F. C. Young and J. G. Pronko.
“Mode A 10-Meter converter for 432 MHz”, Orbit Magazine, June 1980, p 20. J. G. Pronko
“X-Ray Spectrograph with Active Readout”, Nuclear Instruments and Methods 165 (1979) 463, J. G. Pronko and L. F. Chase.
“Saturation Effects of Organic Scintillators to Nanosecond-Pulses of Low-Energy X-rays”, Nuclear Instruments and Methods 164 (1979) 491, J. G. Pronko, D. Kohler and L. F. Chase.
“Temporal Characteristics and Saturation Effects of Organic Scintillators to Low-Energy X-Rays”, Nuclear Instruments and Methods 164 (1979) 79, J. G. Pronko and L. F. Chase.
“Emission Spectra Characteristics and Selective Filtering Studies of Organic Scintillators”, Nuclear Instruments and Methods 163 (1979) 227, J. G. Pronko, T. R. Fisher and L. F. Chase.
“Angular Distributions of X-Ray Line Radiation From a Laser Produced Plasma”, Applied Physics Letters 30 (1977) 137, L. F. Chase, W. C. Jordan, and J. D. Perez, and J. G. Pronko.
“Gamma-ray Spectroscopy of Low-Lying States in 56Cr”, Physical Review C14 (1976) 1782, T. T. Bardin, R. E. McDonald, J. G. Pronko, and A. R. Poletti.
“Gamma-ray Spectroscopy Studies of the Lower Excited States of 53V”, Physical Review C13 (1976) 608, J. G. Pronko, T. T. Bardin and J. A. Becker.
“Instrumentation for X-Ray Diagnostic Measurements on Laser-Produced Plasmas”, IEEE Transactions in Nuclear Science NS-22 (1975) 724, R. K. Bardin, L. F. Chase, T. R. Fisher, W. C. Jordan, D. Kohler, and J. G. Pronko.
“Gamma-ray Deexcitation of 50Ti States in the Region of 4-MeV Excitation”, Physical Review C10 (1974) 1345, J. G. Pronko, T. T. Bardin, J. A. Becker, R. E. McDonald, and A. R. Poletti
“Gamma-ray Spectroscopy Studies of 52Ti”, Physical Review C9 (1974) 1430, J. G. Pronko, T. T. Bardin, J. A. Becker, T. R. Fisher, R. E. McDonald, and A. R. Poletti.
“Depth Profiling of 3He and 2He in Solids Using the 3He(d,p)4He Resonance”, Physical Review B9 (1974), P. P. Pronko and J. G. Pronko.
“Beta Decay of 17N”, Physical Review C8 (1973) 1285, A. R. Poletti and J. G. Pronko.
“Gamma-Ray Spectroscopy of Low-Lying Levels in 28Mg”, Physical Review C7 (1973) 1878, T. R. Fisher, T. T. Bardin, J. A. Becker, L. F. Chase, D. Kohler, R. E. McDonald, A. R. Poletti. and J. G. Pronko
“Lifetimes in 33P by the Doppler-Shift-Attenuation-Method”, Physical Review C7 (1973) 1382, A. R. Poletti, T. T. Bardin, J. G. Pronko and R. E. Mcdonald.
“33P: Angular Correlation Studies of Excited States”, Physical Review C7 (1973) 1479, A. R. Poletti, T. T. Bardin, R. E. McDonald, and J G. Pronko.
“Study of Excited States of 14O by a Particle-particle Angular-Correlation Technique”, Physical Review C7 (1973) 1382, J. G. Pronko, R. G. Hirko and D. C. Slater.
“Study of 42Ar Using the 40Ar(t,pg)42Ar Reaction, Physical Review C7 (1973) 1061, J. G. Pronko and R. E. McDonald.
“Study of Some 20F Excited States”, Physical Review C7 (1973) 127, J. G. Pronko
“Study of 32Si Using the 30Si(t,p,gamma) Reaction”, Physical Review C6 (1972) 2065, J. G. Pronko and R. E. McDonald.
“Angular Correlations of Sequential Particle Decay for Aligned Nuclei”, Nuclear Instruments and Methods 98 (1972) 445, J. G. Pronko and R. A. Lindgren.
“A Study of 23Na”, Nuclear Physics A180 (1972) 1, R. A. Lindgren, R. G. Hirko, J. G. Pronko, A. J. Howard, M. W. Sachs. and D. A. Bromley.
“Study of 20F Using the 18O(t,n?) Reaction”, Physical Review C4 (1971) 1023, J. G. Pronko and R. W. Nightingale.
“Nuclear Structure Studies on 29Al”, Particles and Nuclei 1 (1971) 372, R. G. Hirko, R. A. Lindgren, A. J. Howard, J. G. Pronko, M. W. Sachs, D. A. Bromley.
“Doppler Shift Studies with Selected Recoil Directions”, Nuclear Instruments and Methods 91 (1971) 659, J. G. Pronko, R. A. Lindgren, and D. A. Bromley.
“Studies on 21Ne and 23Ne via the 20Ne(d,p)21Ne and 22Ne(d,p)23Ne Reactions, Nuclear Physics A152 (1970) 317, A. J. Howard, J. G. Pronko, and C. A. Whitten, Jr.
“A Versatile Data Acquisition System for General Gamma Ray Spectroscopy”, Nuclear Instruments and Methods 85 (1970) 1, R. G. Hirko, R. A. Lindgren, A. J. Howard, J. G. Pronko, M. W. Sachs and D. A. Bromley.
“Studies on the 21Ne(p,d)20Ne and 21Ne(d,p)22Ne Reactions”, Nuclear Physics A150 (1970) 609, A. J. Howard, J. G. Pronko, and R. G. Hirko.
“The Identification of Mirror State Structure in 21Na and 21Ne”, Physics Letters 32B (1970) 103, R. A. Lindgren, J. G. Pronko, A. J. Howard and D. A. Bromley.
“Angular Correlation and Lifetime Measurements for Low-Lying 23Na States”, Nuclear Physics A146 (1970) 99, H. J. Maier, J. G. Pronko, and C. Rolfs.
“Structure of 21Na from the 24Mg(p,gamma)21Na Reaction”, Nuclear Physics A140 (1970) 465, J. G. Pronko, R. A. Lindgren and D. A. Bromley.
“Gamma-Ray Angular Correlations and Lifetime Measurements for Some Excited States of 21Ne”, Physical Review 186 (1969) 1174, J. G. Pronko, C. Rolfs and H. J. Maier.
“Low-Lying Negative-Parity States in 21Ne”, Physical Review 184 (1969) 1094, A. J. Howard, J. G. Pronko, and C. A. Whitten, Jr.
“1.528- and 0.891-MeV States of 22Na”, Physical Review 167 (1968) 1066, J. G. Pronko, C. Rolfs and H. J. Maier.
“The 2.791 and 2.87-MeV States in 21Ne”, Nuclear Physics A94 (1967) 561, J. G. Pronko, C. Rolfs and H. J. Maier.
“The Excited States of 22Na by the 20Ne(3He,p)22Na Reaction, Nuclear Physics 84 (1966) 1, H. J. Maier, D. Pelte, J. G. Pronko, and C. Rolfs.
“Levels in 21Ne Using the 18O(alpha,n)21Ne Reaction”, Nuclear Physics 83 (1966) 321, J. G. Pronko, W. C. Olsen and J. T. Sample.