Observation of plasma domains with fast ions and enhanced fusion in plasma-focus discharges

Brzosko, J.S.; Nardi, V.; Brzosko, J.R.; Goldstein, David

doi:10.1016/0375-9601(94)90252-6

Cited by 20 publications

(23 citation statements)

References 13 publications

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“…Scaling laws for neutron yield in PF neutron generators are experimentally well established up to 1 MJ of bank energy. If similar laws are supposed to hold also for nuclear reactions that produce SLRs, then, from the results obtained by Brzosko and by the present authors [1][2][3][4][5], it could be expected that a PF with a bank energy of 150 kJ working at 1 Hz repetition frequency could produce (order of) 1 Ci of F 18 in 2 h, from the neutron-free reaction (1). This radioisotope will be produced in gaseous form, 18 F 2 , and could be utilized for the radiochemical production of positron-emission tracers employed in medical examinations such as PET.…”

Section: Introductionmentioning

confidence: 74%

“…Only recently studies of certain nuclear reactions taking place in the focus opened a new perspective for the use of PF devices to produce a number of SLRs. Starting from the results obtained by Brzosko and co-workers [1][2][3] a research activity has been started aimed at the validation and improvement of this technology. The results so far were consistent with those obtained by the Brzosko group, confirming the viability of this production technique [4,5].…”

Section: Introductionmentioning

confidence: 99%

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Preliminary design of a 150kJ repetitive plasma focus for the production of 18-F

Sumini

Mostacci

Rocchi

et al. 2006

Nuclear Instruments and Methods in Physics Research Section A:

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Section: Introductionmentioning

confidence: 74%

Section: Introductionmentioning

confidence: 99%

Preliminary design of a 150kJ repetitive plasma focus for the production of 18-F

Sumini

Mostacci

Rocchi

et al. 2006

Nuclear Instruments and Methods in Physics Research Section A:

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“…We report the measurement of two fusion reactions, D( 3 He,p) 4 He and D(d,p) 3 H, in a 3kJ plasma focus (PF) operated with a 3 He-D 2 gas mixture. These two reactions (abbreviated to 3 HeD and DD in this paper) have Q-values are 18.35MeV and 4.03MeV, respectively.…”

Section: Introductionmentioning

confidence: 99%

“…These two reactions (abbreviated to 3 HeD and DD in this paper) have Q-values are 18.35MeV and 4.03MeV, respectively. Hence the outgoing protons have very different energies: ~16MeV for 3 HeD and ~3MeV for DD. For the few previously reported experiments performed with a 3 He-D 2 PF gas mixture the ~16MeV 3 HeD protons were detected by nuclear emulsion [1] or the proton-activation of copper [2,3] ( 63 Cu(p,n) 63 Zn).…”

Section: Introductionmentioning

confidence: 99%

Studies of Fusion Protons from a 3He-D2 Plasma Focus using Nuclear Track Detectors

Springham¹,

Sim²,

Lee³

et al. 2006

AIP Conference Proceedings

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Coded aperture imaging of fusion source in a plasma focus operated with pure D2 and a D2-Kr gas admixture Time-integrated measurements of fusion-produced protons emitted from PF-facilities AIP Conf. Proc. 812, 237 (2006); 10.1063/1.2168831 A_ measurement of S_pin-T_R_ansfer coefficients I_n the fusion reaction D_(d⃗, p⃗)3H (ASTRID) at 55 keV AIP Conf.Abstract. Protons from the fusion reactions D( 3 He,p) 4 He and D(d,p) 3 H have been observed in a small plasma focus device operated with a 3 He-D 2 gas mixture. The partial pressures of the 3 He and D 2 gasses were in the ratio of 2:1, corresponding to an atomic number ratio of 1:1. Two groups of protons with energies of approximately 16MeV and 3MeV arising from the D( 3 He,p) 4 He and D(d,p) 3 H reactions, were recorded simultaneously using a double-layer arrangement of CR-39 polymer nuclear track detectors (each of thickness 1000μm). As a result of the very different ranges of 16MeV and 3MeV protons, and the particle registration properties of CR-39, the D(d,p) 3 H protons were registered on the front-most CR-39 surface and the D( 3 He,p) 4 He protons were registered on the back-most surface of this double-layer configuration. A pinhole camera, containing the CR-39 detectors, was situated on the forward plasma focus axis in order to image the emission zones of protons for both fusion reactions. It was found that the D( 3 He,p) 4 He and D(d,p) 3 H proton yields were of similar magnitude, but their spatial distributions were very different. Results indicate that the D( 3 He,p) 4 He fusion was concentrated close to the plasma focus pinch column, while the D(d,p) 3 H fusion occurred at some distance from the pinch. Moreover, it appears that both the D( 3 He,p) 4 He and D(d,p) 3 H fusion yields are produced by beam-target mechanisms, with no significant thermonuclear contribution. To better understand the shape of the D(d,p) 3 H distribution, comparative experiments were performed with both a 4 He-D 2 gas mixture and pure D 2 gas. The D(d,p) 3 H distributions obtained for the 3 He-D 2 and 4 He-D 2 cases were found to be very similar, but markedly different from that obtained with pure D 2 gas. Possible explanations of these measured distributions are discussed.

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“…Mather (1961). This device was developed further (in particular, see Brzosko et al, 1994;Brzosko et al, 1991). An essential element of this development was the use of a working gas doped with multielectron atoms.…”

Section: Physical Layout Of Plasma Confinement By the Emitted Gravitamentioning

confidence: 99%

The Conception of Thermonuclear Reactor on the Principle of Gravitational Confinement of Dense High-temperature Plasma

Fisenko¹,

Fisenko²

2010

APR

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The work of Fisenko S. I., & Fisenko I. S. (2009). The old and new concepts of physics, 6 (4), 495, shows the key fact of the existence of gravitational radiation as a radiation of the same level as electromagnetic. The obtained results strictly correspond to the framework of relativistic theory of gravitation and quantum mechanics. The given work contributes into further elaboration of the findings considering their application to dense high-temperature plasma of multiple-charge ions. This is due to quantitative character of electron gravitational emission spectrum such that amplification of gravitational emission may take place only in multiple-charge ion high-temperature plasma.PACS 1999 -04.90.+e, 52.55.Ez, 23.40.-s.

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Observation of plasma domains with fast ions and enhanced fusion in plasma-focus discharges

Cited by 20 publications

References 13 publications

Preliminary design of a 150kJ repetitive plasma focus for the production of 18-F

Preliminary design of a 150kJ repetitive plasma focus for the production of 18-F

Studies of Fusion Protons from a 3He-D2 Plasma Focus using Nuclear Track Detectors

The Conception of Thermonuclear Reactor on the Principle of Gravitational Confinement of Dense High-temperature Plasma

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