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Julio César Valenzuela Ahumada

profesor asociado

Pontificia Universidad Católica de Chile

Santiago, Chile

plasma physics, nuclear fusion, Z-pinches, Z-pinch stability, Gas-puffs, wire arrays, high energy density physics, laboratory astrophysics, spectroscopy, pulsed power, plasma diagnostics

física, PONTIFICIA UNIVERSIDAD CATOLICA DE CHILE. Chile, 2012
física, PONTIFICIA UNIVERSIDAD CATOLICA DE CHILE. Chile, 2007

profesor asistente Full Time

PONTIFICIA UNIVERSIDAD CATOLICA DE CHILE

Física

Santiago, Chile

2018 - A la fecha
Assistant project scientist Full Time

university of California San Diego

center for energy research

san diego, Estados Unidos

2015 - 2018
Postdoc Full Time

university of San Diego california

Center for Energy Research

San Diego, Chile

2012 - 2015

Postdoc Full Time

University of California San Diego

San Diego, Estados Unidos

2012 - 2015
Assistant Scientist Full Time

University of California San Diego

San Diego, Estados Unidos

2015 - 2018


Influence of conical wire array geometry on plasma flow and temperature profiles of radiatively cooled jets Izquierdo, Luisa; Veloso, Felipe; Escalona, Miguel; Valenzuela-Villaseca, Vicente; Avaria, Gonzalo; Valenzuela, Julio Article ISI PHYSICAL REVIEW E (2026)
Laser-driven annular shock waves as laboratory analogues of <i>w</i>CDM cosmologies and cosmological gravitational waves Asenjo, Felipe A.; Veloso, Felipe; Valenzuela, Julio C. Article ISI COMMUNICATIONS PHYSICS (2026)
Simply digital recording and analysis technique for obtaining the phase shift and polarization rotation of a coherent beam passing through a magnetized plasma Morales I.; Pavez C.; Pedreros, J; Moreno J.; Davis S.; Soto L.; Avaria G.; Valenzuela, J.; Escalona M. Article ISI (2025)
Survival of Listeria Strains and Shelf Life Determination of Fresh Blueberries (Vaccinium corymbosum) Treated with Cold Atmospheric Plasma Cullen, Patrick J.; Veloso, Felipe; Toloza, Lorena; Niemira, Brendan A. Article ISI SCOPUS Foods (2024)
Two-dimensional shock propagation and Mach stem formation induced by a laser-produced annular plasma Veloso, Felipe; Rosales, Vicente; Favre, Mario; Valenzuela, Julio Article ISI SCOPUS Physical Review E (2024)
Bayesian inference of plasma parameters from collective Thomson scattering technique on a gas-puff near stagnation Article ISI SCOPUS Scientific Reports (2023)
Comparison of round and knife-edge-like cathodes on gas-puff implosions Loch, O.; Diaz, J. P. Article ISI SCOPUS Physical Review E (2023)
Measurements of Neutrons Created in a Staged Z-Pinch With Krypton Liner and Deuterium Target at a 1-MA Pulsed Power Generator Article IEEE TRANSACTIONS ON PLASMA SCIENCE (2023)
Shock interactions between plasma jets from conical wire array Z-pinches and laser-produced plasma plume Izquierdo, Luisa; Veloso, Felipe; Valenzuela, Julio; Escalona, Miguel; Oportus, Diego Article ISI SCOPUS Results in Physics (2022)
Comparative study on the dynamics and the composition between a pulsed laser deposition (PLD) and a plasma enhanced PLD (PE-PLD) Article ISI SCOPUS Results in Physics (2021)
Study of titanium nitride film growth by plasma enhanced pulsed laser deposition at different experimental conditions Article ISI SCOPUS Surface and Coatings Technology (2021)
X-ray emission from copper X-pinches driven at a current rate of ∼1kA/ns Veloso, Felipe; Valenzuela, Julio Article ISI SCOPUS Results in Physics (2021)
Design of a Multiple Exploding Wire Setup to Study Shock Wave Dynamics Article ISI EXPERIMENTAL TECHNIQUES (2020)
MA-class linear transformer driver for Z-pinch research Reisman, D. B.; Collins G.; Spielman, R. B. Article ISI PHYSICAL REVIEW ACCELERATORS AND BEAMS (2020)
Role of collisionality and radiative cooling in supersonic plasma jet collisions of different materials Article ISI PHYSICAL REVIEW E (2020)
Study of stability in a liner-on-target gas puff Z-pinch as a function of pre-embedded axial magnetic field Aybar, N; Narkis J.; Rahman H.U.; Ruskov, E; Dutra E.; Haque S.; Covington A.; Beg, F. N. Article ISI SCOPUS Physics of Plasmas (2020)
A semi-analytic model of gas-puff liner-on-target magneto-inertial fusion Article ISI PHYSICS OF PLASMAS (2019)
Ar and Kr on deuterium gas-puff staged Z-pinch implosions on a 1-MA driver: Experiment and simulation Article ISI PHYSICS OF PLASMAS (2019)
Gated liquid scintillator detector for neutron time of flight measurements in a gas-puff Z-pinch experiment Article ISI REVIEW OF SCIENTIFIC INSTRUMENTS (2019)
Characterization of a Liner-on-Target Gas Injector for Staged Z-Pinch Experiments Article ISI IEEE TRANSACTIONS ON PLASMA SCIENCE (2018)
Measurement of temperature and density using non-collective X-ray Thomson scattering in pulsed power produced warm dense plasmas Article ISI SCIENTIFIC REPORTS (2018)
Injector design for liner-on-target gas-puff experiments Wessel, F.; Fadeev, V.; Ross, M. P. Article ISI REVIEW OF SCIENTIFIC INSTRUMENTS (2017)
Characterization of laser-cut copper foil X-pinches Collins, G. W.; Valenzuela, J. C.; Hansen, S. B.; Reed, C. T.; Forsman, A. C. Article ISI PHYSICS OF PLASMAS (2016)
Shock formation in Ne, Ar, Kr, and Xe on deuterium gas puff implosions Rahman, H. U.; Ney, P.; Desjarlais, M. P.; Wessel, F. J. Article ISI PHYSICS OF PLASMAS (2016)
Counter-propagating plasma jet collision and shock formation on a compact current driver Zick, T.; Krasheninnikov, I. Article High Energy Density Physics (2015)
Investigation of Current Transport in 2 x 2 Wire Array Plasmas Mariscal, Derek; Valenzuela, Julio; Collins, Gilbert; Chittenden, Jeremy; Beg, Farhat Article ISI IEEE TRANSACTIONS ON PLASMA SCIENCE (2015)
Time-resolved study of the extreme-ultraviolet emission and plasma dynamics of a sub-Joule, fast capillary discharge Valenzuela J.C.; Favre M. Article ISI SCOPUS Physics of Plasmas (2015)
Measurement of pulsed-power-driven magnetic fields via proton deflectometry Mariscal, D.; McGuffey, C.; Wei, M. S.; Chittenden, J. P.; Niasse, N.; Presura, R.; Wallace M.; Sawada, H.; Wiewior, P.; Beg, F. N. Article APPLIED PHYSICS LETTERS (2014)
Study of instability formation and EUV emission in thin liners driven with a compact 250 kA, 150 ns linear transformer driver Valenzuela J.C.; Collins G.W.; Mariscal, D.; Beg F.N. Article ISI PHYSICS OF PLASMAS (2014)
Observations of soft X-ray emission and plasma dynamics of a compact capillary discharge operated in xenon Valenzuela J.C.; Favre M.; Chuaqui, H Article ISI SCOPUS Physics of Plasmas (2013)
Current measurement by Faraday effect on GEPOPU Correa N.; Chuaqui, H; Wyndham E.; Veloso F.; Valenzuela, J.; Favre M.; Bhuyan H. Article ISI SCOPUS Applied Optics (2012)
Implementation of moire-schlieren deflectometry on a small scale fast capillary plasma discharge Wyndham, E.S.; Chuaqui, H; Favre M.; Bhuyan H. Article ISI SCOPUS Journal of Applied Physics (2012)
Observations of the emission processes of a fast capillary discharge operated in nitrogen Valdivia, M. P.; Wyndham, E.S.; Favre M.; Chuaqui, H; Bhuyan H. Article ISI SCOPUS Plasma Sources Science and Technology (2012)
Fast plasma discharge capillary design as a high power throughput soft x-ray emission source Favre M.; Valdivia M.P.; Valenzuela J.C.; Chuaqui, H; Bhuyan H. Article ISI SCOPUS REVIEW OF SCIENTIFIC INSTRUMENTS (2010)
Sub-micron size carbon structures synthesized using plasma enhanced CVD, without external heating and no catalyzer action Valderrama E.; Favre M.; Bhuyan H.; Ruiz H.M.; Wyndham E.; Valenzuela, J.; Chuaqui, H Article ISI SCOPUS Surface and Coatings Technology (2010)
Experimental observations in compact capillary discharges Favre M.; Wyndham E.; Lenero, AM; Suzuki, F; Valenzuela, J.; Avaria G.; Ruiz M.; Bhuyan H.; Chuaqui, H; Choi, P Article ISI SCOPUS PLASMA SOURCES SCIENCE TECHNOLOGY (2008)


A Compact Ultrafast Capillary Plasma Discharge As an Intense XUV Source Valenzuela J.C.; Valdivia M.P.; Favre M.; Chuaqui, H; Bhuyan H. ConferencePaper ISI SCOPUS SCIENCE OF MAKING TORQUE FROM WIND (TORQUE 2016) (2014)
Soft X-Ray Emission Analysis Of A Pulsed Capillary Discharge Operated In Nitrogen Valdivia M.P.; Valenzuela J.C.; Favre M.; Chuaqui, H; Bhuyan H. ConferencePaper ISI SCOPUS SCIENCE OF MAKING TORQUE FROM WIND (TORQUE 2016) (2014)


Astrophysical plasmas at laboratory scale (astropals) Veloso, Felipe Proyecto (2019)
Study of preionization effects on gas-puff implosion and stagnation dynamics Valenzuela, Julio Proyecto (2018)