Publications

Results 1–100 of 106

Search results

Jump to search filters

Johnston, M.D., Sinclair, M., Grabowski, T.C., & Grabowski, T.C. (2024). Pulsed Power Accelerators and Their Architectures - The Basics [Presentation]. 10.2172/2585234

Johnston, M.D., Grabowski, T.C., & Grabowski, T.C. (2024). E-Field Measurements of HERMES III Electromagnetic Pulse (EMP) Environment [Presentation]. 10.2172/2585422

Powell, T.C., Darr, A., Renk, T.J., Webb, T.J., Marshall, G.J., Johnston, M.D., Mazarakis, M.G., Grabowski, T.C., Nicholas, R.J., & Nicholas, R.J. (2024). Compact Bremsstrahlung Diode Development on HERMES-III. 10.2172/2430024

Schwarz, J., Cuneo, M.E., Hutsel, B.T., Lamppa, D.C., Hines, N.R., Reyes, P.A., Banasek, J.T., Johnston, M.D., McBride, R., Jordan, N., & Jordan, N. (2024). Understanding electrode plasma formation on wires and thin foils via vacuum ultraviolet spectroscopy of desorbed surface contaminants [Conference Poster]. 10.2172/2540452

Bennett, N.L., Lamppa, D.C., Porwitzky, A., Jennings, C.A., Evstatiev, E.G., Chandler, K.M., Banasek, J.T., Patel, S.G., Yager-Elorriaga, D.A., Savage, M.E., Johnston, M.D., Hess, M.H., Cuneo, M.E., Welch, D., Rose, D., Watson, E., Myers, C., & Myers, C. (2023). MRT 7365: Power flow physics and key physics phenomena. 10.2172/2430180

Schwarz, J., Johnston, M.D., Cuneo, M.E., Hutsel, B.T., Steiner, A.M., Reyes, P.A., Banasek, J.T., Lamppa, D.C., McBride, R., Jordan, N., & Jordan, N. (2023). Understanding electrode plasma formation on wires and thin foils via vacuum ultraviolet spectroscopy of desorbed surface contaminants [Conference Presenation]. 10.2172/2430814

Johnston, M.D., Banasek, J.T., Reyes, P.A., Lamppa, D.C., Hutsel, B.T., Steiner, A.M., Jordan, N., Cuneo, M.E., Schwarz, J., McBride, R., & McBride, R. (2023). Understanding electrode plasma formation on wires and thin foils via vacuum ultraviolet spectroscopy of desorbed surface contaminants [Conference Presenation]. 10.2172/2431156

Webb, T.J., Bliss, D.E., Chandler, G.A., Foulk, J.W., Dunham, G.S., Edens, A., Harding, E.C., Johnston, M.D., Jones, M., Mangan, M.A., McCoy, C.A., Maurer, A.J., Steiner, A.M., Wu, M., Yager-Elorriaga, D.A., Yates, K.C., & Yates, K.C. (2023). Radiation, optical, power flow, and electrical diagnostics at the Z facility: Layout and techniques utilized to operate in the harsh environment. Review of Scientific Instruments, 94(3). 10.1063/5.0123448

Banasek, J.T., Johnston, M.D., Reyes, P.A., Schwarz, J., Hines, N.R., Smith, T.J., & Smith, T.J. (2023). Spectrographic and Interferometric Techniques to Measure Power Flow Plasmas on Z [Conference Presenation]. IEEE International Conference on Plasma Science. 10.2172/2431166

Smith, T.J., Johnston, M.D., Jordan, N., Cuneo, M.E., Schwarz, J., McBride, R., & McBride, R. (2023). Understanding Electrode Plasma Formation on Wires and Thin Foils via Vacuum Ultraviolet Spectroscopy of Desorbed Surface Contaminants [Conference Poster]. IEEE International Conference on Plasma Science. 10.2172/2432010

Smith, T.J., Schwarz, J., Johnston, M.D., Jordan, N., Cuneo, M.E., McBride, R., & McBride, R. (2022). Understanding electrode plasma formation on wires and thin foils via vacuum ultraviolet spectroscopy of desorbed surface contaminants [Conference Presenation]. 10.2172/2005667

Johnston, M.D., Grabowski, T.C., Rose, D., Welch, D., & Welch, D. (2022). Characterization and Optimization of Bremsstrahlung X-ray Diodes [Conference Presenation]. 10.2172/2005745

Johnston, M.D., Jordan, N., Cuneo, M.E., McBride, R., Smith, T.J., Schwarz, J., & Schwarz, J. (2022). Understanding electrode plasma formation on wires and thin foils via vacuum ultraviolet spectroscopy of desorbed surface contaminants [Conference Presenation]. 10.2172/2003955

Renk, T.J., Oliver, B.V., Kiefer, M.L., Webb, T.J., Leckbee, J.J., Johnston, M.D., Simpson, S., Mazarakis, M.G., & Mazarakis, M.G. (2022). Characterization of self-magnetic pinch radiographic diode performance on RITS-6 at Sandia National Laboratories. II. Coupling between the inductive voltage adder and the SMP load. Physics of Plasmas, 29(2). 10.1063/5.0073973

Renk, T.J., Oliver, B.V., Kiefer, M.L., Webb, T.J., Leckbee, J.J., Johnston, M.D., Simpson, S., Mazarakis, M.G., & Mazarakis, M.G. (2022). Characterization of self-magnetic pinch (SMP) radiographic diode performance on RITS-6 at Sandia National Laboratories. I. Diode dynamics, DC heating to extend radiation pulse. Physics of Plasmas, 29(2). 10.1063/5.0073971

Johnston, M.D., Jordan, N., Cuneo, M.E., Laity, G.R., McBride, R., Smith, T., & Smith, T. (2022). Understanding electrode plasma formation on wires and thin foils via vacuum ultraviolet spectroscopy of desorbed surface contaminants [Conference Presenation]. https://doi.org/10.2172/2001727

Johnston, M.D., Jordan, N., Cuneo, M.E., Laity, G.R., McBride, R., Smith, T.J., & Smith, T.J. (2022). Understanding electrode plasma formation on wires and thin foils via vacuum ultraviolet spectroscopy of desorbed surface contaminants [Conference Presenation]. 10.2172/2001728

Johnston, M.D., Jordan, N., Cuneo, M.E., Laity, G.R., McBride, R., Smith, T., & Smith, T. (2021). Understanding electrode plasma formation on wires and thin foils via vacuum ultraviolet spectroscopy of desorbed surface contaminants [Conference Presenation]. 10.2172/1906435

Johnston, M.D., Jordan, N., Cuneo, M.E., Laity, G.R., McBride, R., Smith, T.J., & Smith, T.J. (2021). Understanding electrode plasma formation on wires and thin foils via vacuum ultraviolet spectroscopy of desorbed surface contaminants [Conference Presenation]. 10.2172/1899461

Renk, T.J., Oliver, B.V., Kiefer, M.L., Webb, T.J., Leckbee, J.J., Johnston, M.D., Simpson, S., Mazarakis, M.G., & Mazarakis, M.G. (2021). Characterization of Self-Magnetic Pinch (SMP) radiographic diode performance on RITS-6 at Sandia National Laboratories: 1) Diode Dynamics, DC Heating to extend Radiation Pulse. 10.2172/1829007

Smith, T.J., Johnston, M.D., Jordan, N., Cuneo, M.E., Laity, G.R., McBride, R., & McBride, R. (2021). Understanding electrode plasma formation on wires and thin foils via vacuum ultraviolet spectroscopy of desorbed surface contaminants [Conference Presenation]. 10.2172/1886769

Johnston, M.D., Jordan, N., Cuneo, M.E., Laity, G.R., McBride, R., Smith, T.J., & Smith, T.J. (2021). Understanding electrode plasma formation on wires and thin foils via vacuum ultraviolet spectroscopy of desorbed surface contaminants [Conference Presenation]. 10.2172/1881679

Renk, T.J., Kiefer, M.L., Oliver, B.V., Webb, T.J., Leckbie, J., Johnston, M.D., Simpson, S., Mazarakis, M.G., & Mazarakis, M.G. (2020). Characterization of Self-Magnetic Pinch (SMP) Radiographic Diode Performance on RITS-6 at Sandia National Laboratories. 10.2172/1678823

Laity, G.R., Johnston, M.D., Patel, S.G., Cuneo, M.E., & Cuneo, M.E. (2020). Power Flow Spectroscopy Diagnostics & Platform Development at the Z Pulsed Power Facility. 10.2172/1677519

Patel, S.G., Johnston, M.D., Laity, G.R., Bliss, D.E., MacRunnels, K.A., Scoglietti, D.J., Cuneo, M.E., & Cuneo, M.E. (2019). Diagnosing Electrode Surfaces on the Z-Machine Using Optical Spectroscopy [Conference Poster]. https://www.osti.gov/biblio/1642939

Patel, S.G., Kiefer, M.L., Cuneo, M.E., Maron, Y., Stambulchik, E., Doron, R., Johnston, M.D., & Johnston, M.D. (2019). Visible Spectroscopy Techniques for Diagnosing Plasmas in High-Energy-Density Power-Flow Systems [Conference Poster]. https://www.osti.gov/biblio/1641006

Biswas, S., Doron, R., Mikitchuk, D., Maron, Y., Johnston, M.D., Patel, S.G., Kiefer, M.L., Cuneo, M.E., & Cuneo, M.E. (2018). Shielding of the azimuthal magnetic field by the anode plasma in a relativistic self-magnetic-pinch diode. Physics of Plasmas, 25(11). 10.1063/1.5046945

Laity, G.R., Aragon, C., Bennett, N.L., Bliss, D.E., Foulk, J.W., Fierro, A.S., Gomez, M.R., Hess, M.H., Hutsel, B.T., Jennings, C.A., Johnston, M.D., Kossow, M.R., Lamppa, D.C., Martin, M.R., Patel, S.G., Porwitzky, A., Robinson, A.C., Rose, D., Vandevender, P., … Cuneo, M.E. (2018). Recent Diagnostic Platform Accomplishments for Studying Vacuum Power Flow Physics at the Sandia Z Accelerator [Conference Poster]. https://www.osti.gov/biblio/1592228

Patel, S.G., Johnston, M.D., Webb, T.J., Mazarakis, M.G., Bennett, N., Muron, D.J., Kiefer, M.L., Maron, Y., Gilgenbach, R., & Gilgenbach, R. (2018). Magnetic Field Measurements on the Self Magnetic Pinch Diode At SNL using Zeeman Splitting [Presentation]. 10.1109/PLASMA.2015.7179869

Mazarakis, M.G., Cuneo, M.E., Fournier, S.D., Johnston, M.D., Kiefer, M.L., Leckbee, J., Nielsen, D.S., Oliver, B.V., Sceiford, M.E., Simpson, S., Renk, T.J., Reyes, C., Webb, T.J., Ziska, D., Bennett, N., Droemer, D.W., Gignac, R.E., Wilkins, F.L., & Wilkins, F.L. (2018). Contribution of the backstreaming ions to the self-magnetic pinch (SMP) diode current. Physics of Plasmas, 25(4). 10.1063/1.5009014

Bliss, D.E., Patel, S.G., Falcon, R.E., Johnston, M.D., Lemke, R.W., Porwitzky, A., Cuneo, M.E., & Cuneo, M.E. (2017). Streaked Visible Spectroscopy of Power Flow Surface Plasmas: Anodes Cathodes Convolutes and Loads [Conference Poster]. https://www.osti.gov/biblio/1513183

Johnston, M.D., Patel, S.G., Falcon, R.E., Cartwright, K., Kiefer, M.L., Cuneo, M.E., Biswas, S., Doron, R., Mikitchuk, D., Stambulchik, E., Maron, Y., & Maron, Y. (2017). Visible Spectroscopy Measurements of Plasmas and Fields in the Power Flow Regions on the Z Machine [Conference Poster]. https://www.osti.gov/biblio/1510708

Johnston, M.D., Patel, S.G., Falcon, R.E., Cartwright, K., Kiefer, M.L., Cuneo, M.E., Maron, Y., & Maron, Y. (2017). Measuring Plasma Formation Field Strength and Current Loss in Pulsed Power Diodes. 10.2172/1409920

Johnston, M.D., Patel, S.G., Falcon, R.E., Bliss, D.E., Laity, G.R., Kiefer, M.L., Cuneo, M.E., Biswas, S., Doron, R., Mikitchuk, D., Stambulchik, E., Yitzhak, M., & Yitzhak, M. (2017). Visible Spectroscopy Measurements of Plasmas and Fields on the Z-Machine at Sandia National Laboratories [Conference Poster]. https://www.osti.gov/biblio/1468511

Laity, G.R., Aragon, C., Foulk, J.W., Falcon, R.E., Gomez, M.R., Hess, M.H., Hutsel, B.T., Jennings, C.A., Johnston, M.D., Lamppa, D.C., Patel, S.G., Porwitzky, A., Vandevender, J.P., Webb, T.J., Rochau, G.A., Stygar, W.A., Cuneo, M.E., & Cuneo, M.E. (2017). Experimental Platform Development for Studying Vacuum Power Flow Physics at the Sandia Z Accelerator [Conference Poster]. https://www.osti.gov/biblio/1456844

Patel, S.G., Johnston, M.D., Webb, T.J., Falcon, R.E., Bliss, D.E., Laity, G.R., Gomez, M.R., Bennett, N., Welch, D., Kiefer, M.L., Cuneo, M.E., Maron, Y., Gilgenbach, R., & Gilgenbach, R. (2017). Visible Spectroscopy and Machgnic Field Profile Measurements of Pulsed Power Diodes [Conference Poster]. https://www.osti.gov/biblio/1458134

Mazarakis, M.G., Nichelle, B., Cuneo, M.E., Johnston, M.D., Kiefer, M.L., Leckbee, J., Nielsen, D.S., Obregon, R., Oliver, B.V., Renk, T.J., Ruiz, C.L., Fournier, S.D., Simpson, S., Webb, T.J., Welch, D., Frank, W.L., Ziska, D., & Ziska, D. (2016). Measurements of the back-streaming ions in the SMP diode [Conference Poster]. https://www.osti.gov/biblio/1404798

Johnston, M.D., Patel, S.G., Kiefer, M.L., Biswas, S., Doron, R., Stambulchik, E., Bernshtam, V., Maron, Y., & Maron, Y. (2016). Electric and Magnetic Field Measurements in High Energy Electron Beam Diode Plasmas Using Optical Spectroscopy [Conference Poster]. https://www.osti.gov/biblio/1420162

Renk, T.J., Simpson, S., Webb, T.J., Johnston, M.D., Leckbee, J., Mazarakis, M.G., Patel, S.G., Kiefer, M.L., & Kiefer, M.L. (2016). Use of In-Situ Anode Heating and Plasma Glow Discharge Cleaning and its Effects on Impedance Behavior in the Self-Magnetic Pinch (SMP) Diode on the RITS-6 Accelerator [Conference Poster]. https://www.osti.gov/biblio/1393765

Patel, S.G., Johnston, M.D., Webb, T.J., Bennett, N., Maron, Y., Muron, D.J., Kiefer, M.L., Gilgenbach, R.M., Lau, Y.Y., Willingale, L., & Willingale, L. (2016). Optical Spectroscopy and Magnetic Field Profile Measurements on the Self Magnetic Pinch Diode [Presentation]. https://www.osti.gov/biblio/1529837

Patel, S.G., Johnston, M.D., Webb, T.J., Muron, D.J., Mazarakis, M.G., Bennett, N., Kiefer, M.L., Maron, Y., Gilgenbach, R., & Gilgenbach, R. (2016). Magnetic Field Measurements on the Self Magnetic Pinch Diode At SNL using Zeeman Splitting [Conference Poster]. https://www.osti.gov/biblio/1366791

Simpson, S., Johnston, M.D., Mazarakis, M.G., Nielsen, D.S., Renk, T.J., Tang, R., Webb, T.J., Ziska, D., Kiefer, M.L., Patel, S.G., Weber, B., Zier, J., & Zier, J. (2016). In-situ anode heating and plasma glow discharge cleaning and its effects on atomic constituents in the A-K gap in Self-Magnetic Pinch (SMP) experiments [Conference Poster]. 10.1109/PLASMA.2016.7534263

Johnston, M.D., Patel, S.G., Kiefer, M.L., Biswas, S., Doron, R., Bernshtam, V., Stambulchik, E., Maron, Y., & Maron, Y. (2016). Measurements of Magnetic and Electric Fields in High Energy Electron Beam Diodes [Conference Poster]. 10.1109/PLASMA.2016.7534094

Mazarakis, M.G., Cuneo, M.E., Fournier, S.D., Johnston, M.D., Kiefer, M.L., Leckbee, J., Nielsen, D.S., Renk, T.J., Ruiz, C.L., Simpson, S., Webb, T.J., Ziska, D., Nichelle, B., Robert, O.J., Dale, W.R., Frank, W.L., & Frank, W.L. (2016). Dependence of the Back-streaming Ion Current on the Self-magnetic pinch (SMP) Electron Diode Parameters [Conference Poster]. https://www.osti.gov/biblio/1368854

Simpson, S., Renk, T.J., Johnston, M.D., Mazarakis, M.G., Leckbee, J., Webb, T.J., Kiefer, M.L., Patel, S.G., & Patel, S.G. (2015). In-Situ Anode heating and Its Effects on Atomic Constituents in the A-K Gap in Self-Magnetic Pinch (SMP) Experiments [Conference Poster]. https://www.osti.gov/biblio/1332850

Renk, T.J., Simpson, S., Johnston, M.D., Leckbee, J., Webb, T.J., Mazarakis, M.G., Kiefer, M.L., Zier, J., Weber, B., & Weber, B. (2015). Anode heating/Cleaning and its effects on diode impedance in Self-Magnetic Pinch (SMP) Experiments [Conference Poster]. https://www.osti.gov/biblio/1332854

Renk, T.J., Simpson, S., Johnston, M.D., Leckbee, J., Webb, T.J., Mazarakis, M.G., Kiefer, M.L., Bennett, N., Weber, B., Zier, J., & Zier, J. (2015). Impedance Dynamics in the Self-Magnetic Pinch (SMP) Diode on the RITS-6 Accelerator [Conference Poster]. https://www.osti.gov/biblio/1332858

Patel, S.G., Johnston, M.D., Webb, T.J., Maron, Y., Bennett, N.L., Muron, D.J., Welch, D., Kiefer, M.L., Gilgenbach, R.M., & Gilgenbach, R.M. (2015). Prospectus Exam: Magnetic Field Measurements on the Self Magnetic Pinch Diode At RITS-6 Using Zeeman Splitting [Presentation]. https://www.osti.gov/biblio/1334575

Patel, S.G., Johnston, M.D., Webb, T.J., Maron, Y., Mazarakis, M.G., Bennett, N., Muron, D.J., Kiefer, M.L., Gilgenbach, R., & Gilgenbach, R. (2015). Magnetic Field Measurements Using Zeeman Splitting on the SMP Diode at Sandia National Labs [Conference Poster]. https://www.osti.gov/biblio/1334576

Mazarakis, M.G., Cuneo, M.E., Johnston, M.D., Kiefer, M.L., Leckbee, J., Nielsen, D.S., Renk, T.J., Ruiz, C.L., Simpson, S., Webb, T.J., Ziska, D., Welch, D., Wilkins, R.W., & Wilkins, R.W. (2015). Dependence of the Back-streaming Ion Current on the Self-magnetic pinch (SMP) Electron Diode Parameters [Conference Poster]. https://www.osti.gov/biblio/1332806

Webb, T.J., Johnston, M.D., Kiefer, M.L., Leckbee, J., Welch, D., Bennett, N., & Bennett, N. (2015). Evaluation of spot size and dose of the Self-Magnetic Pinch diode on the RITS-6 accelerator from 3-8 MV [Conference Poster]. https://www.osti.gov/biblio/1327953

Patel, S.G., Johnston, M.D., Muron, D.J., Webb, T.J., Bennett, N., Gilgenbach, R., & Gilgenbach, R. (2015). Magnetic Field Measurements on the Self Magnetic Pinch Diode at RITS-6 Using Zeeman Splitting [Conference Poster]. https://www.osti.gov/biblio/1256546

Mazarakis, M.G., Cuneo, M.E., Johnston, M.D., Kiefer, M.L., Leckbee, J., Nielsen, D.S., Oliver, B.V., Renk, T.J., Ruiz, C.L., Simpson, S., Webb, T.J., Ziska, D., Nichelle, B., & Nichelle, B. (2015). Measurements of the back-streaming ions in the SMP diode [Conference Poster]. https://www.osti.gov/biblio/1270920

Johnston, M.D., Patel, S.G., Muron, D.J., Kiefer, M.L., Doron, R., Bernshtam, V., Biswas, S., Maron, Y., & Maron, Y. (2015). Spectroscopic Determinations of Magnetic Fields in High Energy Electron Beam Diodes [Conference Poster]. https://www.osti.gov/biblio/1255037

Johnston, M.D., Patel, S., Muron, D.J., Kiefer, M.L., Welch, D., Doron, R., Bernshtam, V., Biswas, S., Maron, Y., & Maron, Y. (2015). Spectroscopic Method for Determining Magnetic Fields in High Energy Electron Beam Diodes [Conference Poster]. https://www.osti.gov/biblio/1255764

Bennett, N., Crain, M.D., Droemer, D.W., Gignac, R.E., Molina, I., Obregon, R., Smith, C.C., Wilkins, F.L., Welch, D.R., Cordova, S., Johnston, M.D., Kiefer, M.L., Leckbee, J., Mazarakis, M.G., Nielsen, D.S., Romero, T., Simpson, S., Webb, T.J., Ziska, D., & Ziska, D. (2015). The impact of plasma dynamics on the self-magnetic-pinch diode impedance. Physics of Plasmas, 22(3). 10.1063/1.4916062

Johnston, M.D., Kiefer, M.L., Lake, P., Bennett, N., Droemer, D.W., Maron, Y., & Maron, Y. (2015). Optical diagnostics for quantitative analyses of plasma parameters in high-energy electron-beam diodes [Conference]. ICOPS/BEAMS 2014 - 41st IEEE International Conference on Plasma Science and the 20th International Conference on High-Power Particle Beams. https://doi.org/10.1109/PLASMA.2014.7012290

Cordova, S.R., Johnston, M.D., Leckbee, J., Kiefer, M.L., Nielsen, D.S., Renk, T.J., Webb, T.J., Ziska, D., & Ziska, D. (2013). Investigations of shot reproducibility for the SMP diode at 4.5 MV. 10.2172/1121975

Johnston, M.D., Oliver, B.V., Hahn, K., & Hahn, K. (2012). Optical Spectroscopy Results for the Self-Magnetic Pinch Electron Beam Diode on the RITS-6 Accelerator. 10.2172/1118170

Johnston, M.D., Oliver, B.V., & Oliver, B.V. (2010). Absolute Calibration Method for Nanosecond-resolved Time-streaked Fiber Optic Light Collection Spectroscopy Systems. Review of Scientific Instruments. https://www.osti.gov/biblio/1123529

Johnston, M.D., Oliver, B.V., & Oliver, B.V. (2010). Absolute calibration method for fast-streaked, fiber optic light collection, spectroscopy systems. 10.2172/983684

Johnston, M.D., Hahn, K., Oliver, B.V., Mehlhorn, T., & Mehlhorn, T. (2008). Volumetric plasma source development and characterization. 10.2172/942062

Rovang, D.C., Johnston, M.D., Maenchen, J.E., Oliver, B.V., Portillo, S., & Portillo, S. (2008). Characterization and Investigation of the Anomalous Behavior of the Immersed-Bz Diode During Operation at 4 to 5 MV. Physics of Plasmas, 15(9). https://doi.org/10.1063/1.2980418

Rovang, D.C., Van De Valde, D., Gregerson, D., Puetz, E., Bruner, N., Cooper, G., Cordova, S.R., Droemer, D., Hahn, K., Johnston, M.D., Maenchen, J.E., McLean, J., Molina, I., Oliver, B., O'Malley, J., Portillo, S., Welch, D., & Welch, D. (2007). Development and testing of immersed-Bz diodes with cryogenic anodes [Conference]. Digest of Technical Papers-IEEE International Pulsed Power Conference. https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=45149118090&origin=inward

Results 1–100 of 106
Results 1–100 of 106