Gyrotron-driven high current ECR ion source for boron-neutron capture therapy neutron generator

Skalyga, V. A.; Izotov, I. V.; Golubev, S. V.; Razin, S. V.; Сидоров, А. В.; Maslennikova, Anna; Volovecky, A.; Kalvas, Taneli; Koivisto, H.; Tarvainen, O.

doi:10.1016/j.nima.2014.09.058

Cited by 9 publications

(8 citation statements)

References 23 publications

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“…In the first experiments [12] with relatively small extraction voltages (45 kV) hydrogen and deuterium ion beams with a current of 450 mA and corresponding current density up to 600 mA/cm 2 with a rms normalized emittance at the level of 0.07 π•mm•mrad and the fraction of atomic ions more than 90% were obtained using 1 cm extraction. Noticeable neutron fluxes (up to 10 9 s −1 ) [16][17][18] were registered in case of a deuterium-containing target (heavy ice or TiD 2 ) bombardment by such beams.…”

Section: Jinst 14 C01007mentioning

confidence: 99%

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Pulsed neutron generator with a point-like emission area based on a high-current ECR source of deuterium ions

et al. 2019

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The paper demonstrates a possibility of a high-power compact neutron generator creation with 10 10 s −1 neutron yield and small emitting area (about 1mm) based on a high-current ECR ion source with a quasigasdynamic plasma confinement regime. Neutron generation is realized by D-D fusion at deuterium-loaded target bombarded by a sharp focused high-current (50 mA) deuterium ion beam with energy at the level of 80 keV.

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Section: Jinst 14 C01007mentioning

confidence: 99%

“…Experimental and theoretical studies of high-current deuterium ion beams focusing extracted from the dense plasma of a quasi-gasdynamic ECR ion source are described in [10][11][12][13][14][15][16][17][18]. The IBSimu code [19] was used for numerical evaluation of optimal conditions.…”

Section: Jinst 14 C01007mentioning

confidence: 99%

Pulsed neutron generator with a point-like emission area based on a high-current ECR source of deuterium ions

et al. 2019

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“…In such facilities, the beam current (the required level is hundreds of mA) determines the neutron yield, and the loss of particles from the accelerated beam, which is determined by its quality, can lead to the destruction of the accelerating structures. It is worth noting that such problems are typical for the whole variety of neutron sources using accelerated ion beams, from compact neutron generators with a beam energy of the order of 100 keV [3,4] to spallation sources with energies about 1 GeV [5,6].…”

Section: Introductionmentioning

confidence: 99%

Source of pure proton beams

Golubev¹,

Izotov²,

Skalyga³

et al. 2023

Preprint

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In the quasi-gasdynamic high-current ion source described in this work, the plasma is sustained by high-power millimeter-wave radiation under the electron cyclotron resonance (ECR) condition. In such facilities, it is possible to achieve high volumetric energy input of up to 250 W/cm 3 and obtain pure proton beams with a minimum amount of impurities and molecular ions. Experiments conducted on the GISMO facility demonstrated the possibility of a proton beam formation with a current of 50 mA and an extremely high (99.9%) content of atomic ions.

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“…The use of a high-power millimeter radiation allows to increase the discharge plasma density up to 10 13 -10 14 cm −3 ), which is by more than an order of magnitude higher when compared to the conventional ECR ion sources. At such plasma density level, the transition to a quasi-gasdynamic plasma confinement regime occurs, characterized with a short plasma lifetime (on the level of several tens of microseconds), which in turn makes it possible to form high current high-quality deuterium beams with a record brightness (deuterium beams with 450 mA current, 800 mA/cm 2 current density, normalized RMS emittance 0.07 •mm•mrad, and a molecular ion fraction of less than 10 % were obtained [23][24][25][26][27][28]). Experimental studies reported in refs.…”

Section: Introductionmentioning

confidence: 99%

Status of a point-like neutron generator development

Golubev,

Skalyga,

Izotov

et al. 2020

Preprint

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In this paper we report on a high current density ion beam profile diagnostics with a slit-based system as a reliable method, capable of high thermal load applications. The task arose in frames of a point-like neutron source development for neutron radiography. In previous research, it was suggested to construct such a system as a D-D neutron generator based on the high current gasdynamic ion source, which utilises the plasma of electron cyclotron resonance discharge sustained by powerful millimeter wave gyrotron radiation. This device is able to produce focused D + beams with a characteristic diameter of 1 mm, total current above 100 mA, and current density at a level of several A/cm 2 . Study of such intense beams profile to obtain the best focusing efficiency and minimize neutron producing area appeared to be a challenging task. The paper also demonstrates the possibility of fast neutron imaging with a point-like powerful neutron generator (neutron yield on the level of 10 10 s −1 ).

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Gyrotron-driven high current ECR ion source for boron-neutron capture therapy neutron generator

Cited by 9 publications

References 23 publications

Pulsed neutron generator with a point-like emission area based on a high-current ECR source of deuterium ions

Pulsed neutron generator with a point-like emission area based on a high-current ECR source of deuterium ions

Source of pure proton beams

Status of a point-like neutron generator development

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