Use of a radial self-field diode geometry for intense pulsed ion beam generation at 6 MeV on Hermes III

doi:https://doi.org/10.1063/1.4903947

Title: Use of a radial self-field diode geometry for intense pulsed ion beam generation at 6 MeV on Hermes III

Abstract

We investigate the generation of intense pulsed focused ion beams at the 6 MeV level using an inductive voltage adder (IVA) pulsed-power generator, which employs a magnetically insulated transmission line (MITL). Such IVA machines typical run at an impedance of few tens of Ohms. Previous successful intense ion beam generation experiments have often featured an “axial” pinch-reflex ion diode (i.e., with an axial anode-cathode gap) and operated on a conventional Marx generator/water line driver with an impedance of a few Ohms and no need for an MITL. The goals of these experiments are to develop a pinch-reflex ion diode geometry that has an impedance to efficiently match to an IVA, produces a reasonably high ion current fraction, captures the vacuum electron current flowing forward in the MITL, and focuses the resulting ion beam to small spot size. Furthermore, a new “radial” pinch-reflex ion diode (i.e., with a radial anode-cathode gap) is found to best demonstrate these properties. Operation in both positive and negative polarities was undertaken, although the negative polarity experiments are emphasized. Particle-in-cell (PIC) simulations are consistent with experimental results indicating that, for diode impedances less than the self-limited impedance of the MITL, almost all of the forward-going IVAmore »« less

Authors:

Renk, Timothy Jerome ^[1]; Harper-Slaboszewicz, Victor Jozef ^[1]; Mikkelson, Kenneth A. ^[1]; Ginn, W. C. ^[1]; Ottinger, P. F. ^[2]; Schumer, J. W. ^[3]

Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
ENGILITY, Chantilly, VA (United States)
Naval Research Lab. (NRL), Washington, DC (United States)

Publication Date:: 2014-12-15

Research Org.:: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Sponsoring Org.:: USDOE National Nuclear Security Administration (NNSA)

OSTI Identifier:: 1183086

Alternate Identifier(s):: OSTI ID: 1421124

Report Number(s):: SAND-2014-16767J
Journal ID: ISSN 1070-664X; 536639

Grant/Contract Number:: AC04-94AL85000

Resource Type:: Journal Article: Accepted Manuscript

Journal Name:: Physics of Plasmas

Additional Journal Information:: Journal Volume: 21; Journal Issue: 12; Journal ID: ISSN 1070-664X

Publisher:: American Institute of Physics (AIP)

Country of Publication:: United States

Language:: English

Subject:: 70 PLASMA PHYSICS AND FUSION TECHNOLOGY

Citation Formats


                    Renk, Timothy Jerome, Harper-Slaboszewicz, Victor Jozef, Mikkelson, Kenneth A., Ginn, W. C., Ottinger, P. F., and Schumer, J. W. Use of a radial self-field diode geometry for intense pulsed ion beam generation at 6 MeV on Hermes III.  United States: N. p., 2014. 
        Web.  doi:10.1063/1.4903947.

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                    Renk, Timothy Jerome, Harper-Slaboszewicz, Victor Jozef, Mikkelson, Kenneth A., Ginn, W. C., Ottinger, P. F., & Schumer, J. W. Use of a radial self-field diode geometry for intense pulsed ion beam generation at 6 MeV on Hermes III.  United States.  https://doi.org/10.1063/1.4903947

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                    Renk, Timothy Jerome, Harper-Slaboszewicz, Victor Jozef, Mikkelson, Kenneth A., Ginn, W. C., Ottinger, P. F., and Schumer, J. W. Mon .  
        "Use of a radial self-field diode geometry for intense pulsed ion beam generation at 6 MeV on Hermes III".  United States.  https://doi.org/10.1063/1.4903947.  https://www.osti.gov/servlets/purl/1183086.

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@article{osti_1183086,

  title        = {Use of a radial self-field diode geometry for intense pulsed ion beam generation at 6 MeV on Hermes III},

  author       = {Renk, Timothy Jerome and Harper-Slaboszewicz, Victor Jozef and Mikkelson, Kenneth A. and Ginn, W. C. and Ottinger, P. F. and Schumer, J. W.},

  abstractNote = {We investigate the generation of intense pulsed focused ion beams at the 6 MeV level using an inductive voltage adder (IVA) pulsed-power generator, which employs a magnetically insulated transmission line (MITL). Such IVA machines typical run at an impedance of few tens of Ohms. Previous successful intense ion beam generation experiments have often featured an “axial” pinch-reflex ion diode (i.e., with an axial anode-cathode gap) and operated on a conventional Marx generator/water line driver with an impedance of a few Ohms and no need for an MITL. The goals of these experiments are to develop a pinch-reflex ion diode geometry that has an impedance to efficiently match to an IVA, produces a reasonably high ion current fraction, captures the vacuum electron current flowing forward in the MITL, and focuses the resulting ion beam to small spot size. Furthermore, a new “radial” pinch-reflex ion diode (i.e., with a radial anode-cathode gap) is found to best demonstrate these properties. Operation in both positive and negative polarities was undertaken, although the negative polarity experiments are emphasized. Particle-in-cell (PIC) simulations are consistent with experimental results indicating that, for diode impedances less than the self-limited impedance of the MITL, almost all of the forward-going IVA vacuum electron flow current is incorporated into the diode current. PIC results also provide understanding of the diode-impedance and ion-focusing properties of the diode. Additionally, a substantial high-energy ion population is also identified propagating in the “reverse” direction, i.e., from the back side of the anode foil in the electron beam dump.},

  doi          = {10.1063/1.4903947},

  url          = {https://www.osti.gov/biblio/1183086},
  journal      = {Physics of Plasmas},

  issn         = {1070-664X},

  number       = 12,

  volume       = 21,

  place        = {United States},

  year         = {2014},

  month        = {12}

}

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Works referencing / citing this record:

Deuterium z-pinch as a powerful source of multi-MeV ions and neutrons for advanced applications
journal, March 2016

Klir, D.; Shishlov, A. V.; Kokshenev, V. A.
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Method for improved voltage determination for pulsed power systems utilizing a magnetically insulated transmission line
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Extending the range of measurement of thermal imaging diagnostics of a high-intensity pulsed ion beam
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Pushkarev, A.; Zhu, X. P.; Prima, A.
Laser and Particle Beams, Vol. 37, Issue 03
https://doi.org/10.1017/s0263034619000466

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Similar Records

Title: Use of a radial self-field diode geometry for intense pulsed ion beam generation at 6 MeV on Hermes III

Abstract

Citation Formats

Metastable States and Structural Phase Changes in Metals and Alloys Exposed to High Power Pulsed Ion Beams journal, January 1990

Materials modification using intense ion beams journal, July 2004

Application of high intensity pulsed ion and plasma beams in modification of materials journal, August 2001

Inertial Confinement Fusion with Light Ion Beams journal, May 1986

Lithium beam generation and focusing with a radial diode on PBFAII journal, March 1998

Development of the laser evaporation ion source for lithium beam generation on the Particle Beam Fusion Accelerator (PBFA-II) journal, September 1999

Hermes-III positive polarity experiment conference, January 1989

High‐impedance ion‐diode experiment on the Aurora pulser journal, October 1981

Ion diode performance on a positive polarity inductive voltage adder with layered magnetically insulated transmission line flow journal, May 2011

Aurora, An Electron Accelerator journal, January 1973

Initialization and Operation of Mercury, A 6-MV MIVA conference, June 2005

Discharge From Hot Cao journal, May 1911

The Effect of Space Charge and Residual Gases on Thermionic Currents in High Vacuum journal, December 1913

Generation of Intense Ion Beams in Pulsed Diodes journal, November 1973

Production of intense proton fluxes in a magnetically insulated diode journal, January 1976

Self magnetic insulation of pulsed ion diodes journal, May 1977

Production of Intense Proton Beams in Pinched-Electron-Beam Diodes journal, December 1976

Impedance characteristics of diodes operating in the self−pinch mode journal, April 1975

Intense Focusing of Relativistic Electrons by Collapsing Hollow Beams journal, February 1975

Pinched‐beam ion‐diode scaling on the Aurora pulser journal, December 1982

Self-magnetically insulated electron flow in vacuum transmission lines journal, March 1981

Observation of Energetic Ions from a Beam‐Generated Plasma journal, January 1970

High-voltage, high-impedance ion beam production conference, June 2009

Acceleration of Ions by an Electron Beam Injected Into a Closed Conducting Cavity journal, August 2013

Characterization of electron flow in negative- and positive-polarity linear-induction accelerators journal, January 1991

Modeling magnetically insulated devices using flow impedance journal, April 1995

Nonlaminar multicomponent models for electron flow in positive polarity multigap accelerators journal, October 1996

Generalized Model for Magnetically Insulated Transmission Line Flow journal, October 2008

Particle-in-cell simulations of high-power cylindrical electron beam diodes journal, December 2000

Theoretical modeling and experimental characterization of a rod-pinch diode journal, October 2001

Relativistic Brillouin flow in the high ν/γ diode journal, July 1975

A general theory of magnetically insulated electron flow journal, January 1983

A simple theory of magnetic insulation from basic physical considerations journal, August 1983

Rescaling of equilibrium magnetically insulated flow theory based on results from particle-in-cell simulations journal, June 2006

Magnetically insulated electron flow with ions with application to the rod-pinch diode journal, August 2004

Relativisitic electron beam pinch formation processes in low impedance diodes journal, January 1977

Measurement of electron energy deposition necessary to form an anode plasma in Ta, Ti, and C for coaxial bremsstrahlung diodes journal, July 1989

Die Messung der magnetischen Spannung: Messung des Linienintegrals der magnetischen Feldstärke journal, April 1912

Numerical Modeling and Experimental Measurements of Pulsed Ion Beam Surface Treatment journal, January 1997

Overview of Self-Magnetically Pinched-Diode Investigations on RITS-6 journal, October 2010

Deuterium z-pinch as a powerful source of multi-MeV ions and neutrons for advanced applications journal, March 2016

Particle-in-cell simulations of current loss in magnetically insulated transmission line with inductive helical support journal, August 2019

Method for improved voltage determination for pulsed power systems utilizing a magnetically insulated transmission line journal, February 2019

Extending the range of measurement of thermal imaging diagnostics of a high-intensity pulsed ion beam journal, July 2019

Metastable States and Structural Phase Changes in Metals and Alloys Exposed to High Power Pulsed Ion Beams
journal, January 1990

Materials modification using intense ion beams
journal, July 2004

Application of high intensity pulsed ion and plasma beams in modification of materials
journal, August 2001

Inertial Confinement Fusion with Light Ion Beams
journal, May 1986

Lithium beam generation and focusing with a radial diode on PBFAII
journal, March 1998

Development of the laser evaporation ion source for lithium beam generation on the Particle Beam Fusion Accelerator (PBFA-II)
journal, September 1999

Hermes-III positive polarity experiment
conference, January 1989

High‐impedance ion‐diode experiment on the Aurora pulser
journal, October 1981

Ion diode performance on a positive polarity inductive voltage adder with layered magnetically insulated transmission line flow
journal, May 2011

Aurora, An Electron Accelerator
journal, January 1973

Initialization and Operation of Mercury, A 6-MV MIVA
conference, June 2005

Discharge From Hot Cao
journal, May 1911

The Effect of Space Charge and Residual Gases on Thermionic Currents in High Vacuum
journal, December 1913

Generation of Intense Ion Beams in Pulsed Diodes
journal, November 1973

Production of intense proton fluxes in a magnetically insulated diode
journal, January 1976

Self magnetic insulation of pulsed ion diodes
journal, May 1977

Production of Intense Proton Beams in Pinched-Electron-Beam Diodes
journal, December 1976

Impedance characteristics of diodes operating in the self−pinch mode
journal, April 1975

Intense Focusing of Relativistic Electrons by Collapsing Hollow Beams
journal, February 1975

Pinched‐beam ion‐diode scaling on the Aurora pulser
journal, December 1982

Self-magnetically insulated electron flow in vacuum transmission lines
journal, March 1981

Observation of Energetic Ions from a Beam‐Generated Plasma
journal, January 1970

High-voltage, high-impedance ion beam production
conference, June 2009

Acceleration of Ions by an Electron Beam Injected Into a Closed Conducting Cavity
journal, August 2013

Characterization of electron flow in negative- and positive-polarity linear-induction accelerators
journal, January 1991

Modeling magnetically insulated devices using flow impedance
journal, April 1995

Nonlaminar multicomponent models for electron flow in positive polarity multigap accelerators
journal, October 1996

Generalized Model for Magnetically Insulated Transmission Line Flow
journal, October 2008

Particle-in-cell simulations of high-power cylindrical electron beam diodes
journal, December 2000

Theoretical modeling and experimental characterization of a rod-pinch diode
journal, October 2001

Relativistic Brillouin flow in the high ν/γ diode
journal, July 1975

A general theory of magnetically insulated electron flow
journal, January 1983

A simple theory of magnetic insulation from basic physical considerations
journal, August 1983

Rescaling of equilibrium magnetically insulated flow theory based on results from particle-in-cell simulations
journal, June 2006

Magnetically insulated electron flow with ions with application to the rod-pinch diode
journal, August 2004

Relativisitic electron beam pinch formation processes in low impedance diodes
journal, January 1977

Measurement of electron energy deposition necessary to form an anode plasma in Ta, Ti, and C for coaxial bremsstrahlung diodes
journal, July 1989

Die Messung der magnetischen Spannung: Messung des Linienintegrals der magnetischen Feldstärke
journal, April 1912

Numerical Modeling and Experimental Measurements of Pulsed Ion Beam Surface Treatment
journal, January 1997

Overview of Self-Magnetically Pinched-Diode Investigations on RITS-6
journal, October 2010

Deuterium z-pinch as a powerful source of multi-MeV ions and neutrons for advanced applications
journal, March 2016

Particle-in-cell simulations of current loss in magnetically insulated transmission line with inductive helical support
journal, August 2019

Method for improved voltage determination for pulsed power systems utilizing a magnetically insulated transmission line
journal, February 2019

Extending the range of measurement of thermal imaging diagnostics of a high-intensity pulsed ion beam
journal, July 2019