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Complete fabrication of target experimental chamber and implement initial target diagnostics to be used for the first target experiments in NDCX-1

Description: The Heavy Ion Fusion Science Virtual National Laboratory (HIFS-VNL) has completed the fabrication of a new experimental target chamber facility for future Warm Dense Matter (WDM) experiments, and implemented initial target diagnostics to be used for the first target experiments in NDCX-1. The target chamber has been installed on the NDCX-I beamline. This achievement provides to the HIFS-VNL unique and state-of-the-art experimental capabilities in preparation for the planned target heating exper… more
Date: June 9, 2008
Creator: Bieniosek, F.M.; Bieniosek, F.M.; Dickinson, M.R.; Henestroza, E.; Katayanagi, T.; Jung, J.Y. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Thin film synthesis using miniature pulsed metal vapor vacuum arc plasma guns

Description: Metallic coatings can be fabricated using the intense plasma generated by the metal vapor vacuum arc. We have made and tested an embodiment of vacuum arc plasma source that operates in a pulsed mode, thereby acquiring precise control over the plasma flux and so also over the deposition rate, and that is in the form of a miniature plasma gun, thereby allowing deposition of metallic thin films to be carried out in confined spaces and also allowing a number of such guns to be clustered together. T… more
Date: April 1, 1990
Creator: Godechot, X.; Salmeron, M.B.; Ogletree, D.F.; Galvin, J.E.; MacGill, R.A.; Dickinson, M.R. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Versatile high current metal ion implantation facility

Description: A metal ion implantation facility has been developed with which high current beams of practically all the solid metals of the periodic table can be produced. A multi-cathode, broad beam, metal vapor vacuum arc ion source is used to produce repetitively pulsed metal ion beams at an extraction voltage of up to 100 kV, corresponding to an ion energy of up to several hundred keV because of the ion-charge state multiplicity, and with a beam current of up to several amperes peak pulsed and several te… more
Date: June 1, 1991
Creator: Brown, I.G.; Dickinson, M.R.; Galvin, J.E.; Godechot, X. & MacGill, R.A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Metal vapor vacuum arc ion sources

Description: We have developed a family of metal vapor vacuum are (MEVVA) high current metal ion sources. The sources were initially developed for the production of high current beams of metal ions for heavy ion synchrotron injection for basic nuclear physics research; more recently they have also been used for metal ion implantation. A number of different embodiments of the source have been developed for these specific applications. Presently the sources operate in a pulsed mode, with pulse width of order … more
Date: June 1, 1990
Creator: Brown, I.G.; Dickinson, M.R.; Galvin, J.E.; Godechot, X. & MacGill, R.A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Development of a dc, broad beam, Mevva ion source

Description: We are developing an embodiment of metal vapor vacuum arc (Mevva) ion source which will operate dc and have very large area beam. In preliminary testing, a dc titanium ion beam was formed with a current of approximately 0.6 amperes at an extraction voltage of 9kV (about 18 keV ion energy, by virtue of the ion charge state distribution) and using an 18 cm diameter set of multi-aperture. Separately, we have tested and formed beam from a 50 cm diameter (2000 cm{sub 2}) set of grids using a pulsed … more
Date: September 1, 1991
Creator: Brown, I.G.; Dickinson, M.R.; Galvin, J.E. & MacGill, R.A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

S-shaped magnetic macroparticle filter for cathodic arc deposition

Description: A new magnetic macroparticle filter design consisting of two 90{sup o} filters forming an S-shape is described. Transport properties of this S-filter are investigated using Langmuir and deposition probes. It is shown that filter efficiency is product of the efficiencies of two 90{sup o} filters and the deposition rate is still acceptably high to perform thin film deposition. Films of amorphous hard carbon have been deposited using a 90{sup o} filter and the S-filter, and macroparticle content o… more
Date: April 1996
Creator: Anders, S.; Anders, A.; Dickinson, M.R.; MacGill, R.A. & Brown, I.G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Vacuum-spark metal ion source based on a modified Marx generator

Description: The plasma generating parts of ion sources including their power supplies are usually floated to high potential (ion extraction voltage), thus requiring great insulation efforts and high costs for high-energy ion beams. A new concept for pulsed ion sources is presented in which a single power supply is used to simultaneously produce the plasma and high extractor voltage via a modified Marx generator. Proof-of-principle experiments have been performed with high-current spark discharges in vacuum… more
Date: April 1, 1996
Creator: Anders, A.; Brown, I.G.; MacGill, R.A. & Dickinson, M.R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

High energy metal ion implantation using `Magis`, a novel, broad-beam, Marx-generator-based ion source

Description: Ion energy of the beam formed by an ion source is proportional to extractor voltage and ion charge state. Increasing the voltage is difficult and costly for extraction voltage over 100 kV. Here we explore the possibility of increasing the charge states of metal ions to facilitate high-energy, broad beam ion implantation at a moderate voltage level. Strategies to enhance the ion charge state include operating in the regimes of high-current vacuum sparks and short pulses. Using a time-of-flight t… more
Date: August 1, 1996
Creator: Anders, A.; Brown, I.G.; Dickinson, M.R. & MacGill, R.A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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