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

Renk, Timothy Jerome; Harper-Slaboszewicz, Victor Jozef; Mikkelson, K.; Ginn, William Craig; Ottinger, P. F.; Schumer, J.W.

doi:10.1063/1.4903947

Cited by 11 publications

(2 citation statements)

References 41 publications

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“…48 Even higher voltage of 6 MV was applied in experiments with Hermes III. 49 Evidently, the 38 MeV peak energy of hydrogen ions in our experiment was significantly higher than the energy achieved with high-voltage ion diodes even though the initial voltage applied on the GIT-12 was lower by one order of magnitude than on the Mercury or Hermes III generators.…”

Section: Other Powerful Sources Of Multi-mev Ionscontrasting

confidence: 50%

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

et al. 2016

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A novel configuration of a deuterium z-pinch has been used to generate a nanosecond pulse of fast ions and neutrons. At a 3 MA current, the peak neutron yield of (3.6 ± 0.5) × 1012 was emitted within 20 ns implying the production rate of 1020 neutrons/s. High neutron yields resulted from the magnetization of MeV deuterons inside plasmas. Whereas deuterons were trapped in the radial direction, a lot of fast ions escaped the z-pinch along the z-axis. A large number of >25 MeV ions were emitted into a 250 mrad cone. The cut-off energy of broad energy spectra of hydrogen ions approached 40 MeV. The total number of >1 MeV and >25 MeV deuterons were 1016 and 1013, respectively. Utilizing these ions offers a real possibility of various applications, including the increase of neutron yields or the production of short-lived isotopes in samples placed in ion paths. On the basis of our experiments with various samples, we concluded that a single shot would have been sufficient to obtain GBq positron activity of 13N isotopes via the 12C(d,n)13N reaction. Furthermore, the first z-pinch generated neutron radiograph produced by ≈20 ns pulses is presented in this paper.

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Section: Other Powerful Sources Of Multi-mev Ionscontrasting

confidence: 50%

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

et al. 2016

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“…The transparency of the metal mesh may change due to the ablation plasma that overlaps the region between the mesh wires, especially when its optical transparency is low. An error in measuring the ioncurrent density due to the overlap of the collimating hole of the Faraday cup by the ablative plasma was found in [16]. When using a metal grid to attenuate an HPIB, the beam may be additionally focused by its own spatial charge [17].…”

Section: The Expansion Of the Measurement Rangementioning

confidence: 99%

Diagnostics of Pulsed Beams of Electrons, Ions, and Atoms (Review)

et al. 2020

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A review of methods for diagnosing the most important parameters of pulsed beams of electrons, ions, and accelerated atoms, such as the current density, fluence, total energy per pulse, the energy density distribution over the cross section, the composition of the beam, and its energy spectrum, is presented. The main attention is paid to the methods of diagnostics of beams intended for technological applications with a particle energy of 0.01–1 MeV and an energy density of 0.1–10 J/cm2. This paper contains a description of each diagnostic method, its scope of application, and systematic errors. The thermal imaging diagnostics of the total energy of a particle beam, the energy-density distribution over the cross section, the beam movement in the focal plane in a series of pulses, and the beam divergence during its transport to the target are considered. The time-of-flight diagnostics of ion beams is presented, which allows determining the beam composition, the fluence, and the energy spectrum of each type of ion in a beam of a complex composition (ions with different masses and degrees of ionization). The acoustic (thermoradiation) diagnostics based on the detection of acoustic waves, which are generated by a particle beam in a metal target by a piezoelectric transducer, is described.

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Visualization and analysis of pulsed ion beam energy density profile with infrared imaging

Isakova

Pushkarev

2018

Infrared Physics & Technology

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

Cited by 11 publications

References 41 publications

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

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

Diagnostics of Pulsed Beams of Electrons, Ions, and Atoms (Review)

Visualization and analysis of pulsed ion beam energy density profile with infrared imaging

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