Browsing by Author "Wyndham, Edmund"
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- ItemA compact ultrafast capillary plasma discharge as an intense XUV source(2014) Valenzuela, J. C.; Wyndham, Edmund
- ItemA Miniature Capacitive Probe Array for Transient High Voltage Capillary Discharges(2001) Favre Domínguez, Mario; Chuaqui, Hernán; Wyndham, Edmund
- ItemA simple Faraday Cup with Subnanosecond Response(1989) Chuaqui, Hernán; Favre Domínguez, Mario; Wyndham, Edmund; Arroyo González, Luis Orlando
- ItemAblation dynamics in wire array Z-pinches under modifications on global magnetic field topology(2015) Veloso Espinosa, Felipe Eduardo; Munoz Cordovez, Gonzalo; Donoso Tapia, Luis; Valenzuela Villaseca, Vicente; Suzuki-Vidal, Francisco; Swadling, George; Chittenden, Jeremy; Favre Domínguez, Mario; Wyndham, Edmund
- ItemAn Observation of Energetic Electron Beams in a Low Pressure Linear Discharge(1987) Choi, P.; Chuaqui, Hernán; Favre Domínguez, Mario; Wyndham, Edmund
- ItemAnisotropy of Ion Emission from a Low Energy Plasma Focus(2006) Bhuyan, Heman; Chuaqui, Hernán; Wyndham, Edmund; Bhuyan, Heman; Chuaqui, Hernán; Wyndham, Edmund
- ItemBeam and hot-spot formation in a low impedance line driven vacuum spark discharge(1992) Chuaqui, Hernán; Favre Domínguez, Mario; Wyndham, Edmund
- ItemBreakdown Characteristics of a Laser Triggered Pseudospark Discharge(1989) Chuaqui, Hernán; Favre Domínguez, Mario; Wyndham, Edmund; Arroyo González, Luis Orlando
- ItemCharacterization of capacitively coupled radio-frequency argon plasma by electrical circuit simulation(2012) Bora, Bijit; Bhuyan, Heman; Favre Domínguez, Mario; Wyndham, Edmund; Chuaqui, Hernán
- ItemComparison between laser initiated hollow gas embedded z-pinches with different initial radius(2006) Veloso Espinosa, Felipe; Chuaqui, Herman; Aliaga-Rossel, Raul; Favre, Mario; Mitchell, Ian; Wyndham, Edmund; HerreraVelazquez, JJE
- ItemConsiderations of a high repitition Capillary Discharge operated in nitrogen as a water-window X-ray microscope source(IEEE, 2009) Wyndham, Edmund; Favre Domínguez, Mario; Valdivia, M. P.; Valenzuela Ahumada, Julio CésarThe capillary discharge is a very bright radiation source. When operated as a ns discharge at a peak current of order 10 kA and at a high repetition rate of order 200 Hz a very bright source at 13.5 nm is obtained. We present a series of observations that will extend the use of the discharge as a source of He-like nitrogen emission at 2.89 nm as a possible source for a water window soft X-ray microscope. A successful source depends on intense axial electron beams generated by the transient hollow cathode mechanism. These e-beams greatly enhance the plasma X-ray emission above that of a quasi Maxwellian distribution. Crucial to the practical realization of such a source is extremely low inductance geometry, effective heat removal and a ceramic wall and electrode heat loading that avoids ablation and impurities in the plasma. Observations of the time resolved optical spectrum from both ends of the plasma together with filtered X-ray diodes and a Faraday cup permit the verification of model parameters and also verify whether the wall loading is not evaporating the surface. Four capillary lengths and internal diameters are explored. Furthermore the electrical circuit based on low cost IGBT's is presented and a drive configuration that minimizes transformer magnetization losses that in other configurations is deposited in the plasma causing wall evaporation and contamination due to damped current oscillations over a period well after the main plasma discharge.
- ItemConsiderations of a high repitition capillary discharge operated in nitrogen as a water-window X-ray microscope source(2009) Wyndham, Edmund; Favre Domínguez, Mario; Valdivia Leiva, María Pía; Valenzuela Ahumada, Julio César
- ItemCurrent measurement by Faraday effect on GEPOPU(2012) Correa Poblete, Noemí Patricia; Chuaqui, Hernán; Wyndham, Edmund; Veloso Espinosa, Felipe Eduardo; Valenzuela Ahumada, Julio César; Favre Domínguez, Mario; Bhuyan, Heman
- ItemCurrent measurement by Faraday effect on GEPOPU(2014) Correa Poblete, Noemí Patricia; Chuaqui, Hernán; Wyndham, Edmund; Valenzuela Ahumada, Julio César; Favre Domínguez, Mario; Bhuyan, Heman; Veloso Espinosa, Felipe Eduardo; Correa, N.; Chuaqui, Hernán; Wyndham, Edmund; Valenzuela Ahumada, Julio César; Favre Domínguez, Mario; Bhuyan, Heman; Veloso Espinosa, Felipe Eduardo
- ItemDependence of cathode aperture in pulsed hollow‐cathode discharges(1992) Favre Domínguez, Mario; Leñero Merchant, Ana María; Chuaqui, Hernán; Wyndham, Edmund
- ItemDiagnostic of capacitively coupled radio frequency plasma by homogeneous discharge model(2012) Bora, Bijit; Bhuyan, Heman; Favre Domínguez, Mario; Wyndham, Edmund; Bora, Bijit; Bhuyan, Heman; Favre Domínguez, Mario; Wyndham, Edmund
- ItemDual radio frequency plasma source: Understanding via electrical asymmetry effect(2013) Bora, Bijit; Bhuyan, Heman; Favre Domínguez, Mario; Wyndham, Edmund; Bora, Bijit; Bhuyan, Heman; Favre Domínguez, Mario; Wyndham, Edmund
- ItemEffects of uneven mass distribution on plasma dynamics in cylindrical wire array Z-pinches(2015) Veloso Espinosa, Felipe Eduardo; Donoso, Luis; Swadling, George; Chittenden, Jeremy; Munoz, Gonzalo; Valenzuela, Vicente; Suzuki-Vidal, Francisco; Favre Domínguez, Mario; Wyndham, Edmund
- ItemEmission of fast ions from conical wire array Z-pinches studied at different background pressures(2018) Muñoz Cordovez, Gonzalo Andrés; Veloso Espinosa, Felipe Eduardo; Valenzuela Villaseca, Vicente; Vescovi, Milenko; Useche Duque, Wilmer Eleazer; Wyndham, Edmund; Favre Domínguez, Mario
- ItemExperimental investigation of ionization growth in the pre-breakdown phase of fast pulsed capillary discharges(2003) Favre Domínguez, Mario; Chuaqui, Hernán; Mitchell, Ian H.; Wyndham, Edmund