The reversed-field-pinch (RFP) fusion neutron source: A conceptual design

Bathke, C.G.; Krakowski, R.A.; Miller, R.L.; Werley, Kenneth Alan

doi:10.1007/bf01051653

Cited by 3 publications

(1 citation statement)

References 8 publications

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“…A relative-figure-of-merit (RFOM) evaluation has been suggested (20) that would permit a performance comparison between various proposed fusiontechnology neutron sources. This procedure has been used elsewhere to evaluate the performance of a Reversed-Field Pinch (2~ neutron source and a Dense Z-Pinch (21~ neutron source, and is used here to evaluate the comparative performance of the reference D-Lithium source.…”

Section: Figure-of-merit Evaluationmentioning

confidence: 99%

A high-flux accelerator-based neutron source for fusion technology and materials testing

et al. 1989

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Advances in high-current linear-accelerator technology since the design of the Fusion Materials Irradiation Test (FMIT) Facility have increased the attractiveness of a deuteriumlithium neutron source for fusion materials and technology testing. This paper discusses the conceptual design of such a source that is aimed at meeting the near-term requirements of a high-flux high-energy International Fusion Materials Irradiation Facility (IFMIF). The concept employs multiple accelerator modules providing deuteron beams to two liquid-lithium jet targets oriented at right angles. This beam/target geometry provides much larger test volumes than can be attained with a single beam and target and produces significant regions of low neutron-flux gradient. A preliminary beam-dynamics design has been obtained for a 250-mA reference accelerator module. Neutron-flux levels and irradiation volumes were calculated for a neutron source incorporating two such modules, and interaction of the beam with the lithium jet was studied using a thermal-hydraulic computer simulation. Approximate cost estimates are provided for a range of beam currents and a possible facility staging sequence is suggested.

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Section: Figure-of-merit Evaluationmentioning

confidence: 99%

A high-flux accelerator-based neutron source for fusion technology and materials testing

et al. 1989

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The high-density Z-pinch as a pulsed fusion neutron source for fusion nuclear technology and materials testing

1989

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The dense Z-pinch (DZPl is one of the earliest and simplest plasma heating and confinement schemes, Recent experiment al advances based on plasma initiation from hair-like (10s pm in radius) solid hydrogen fiiaments have so far not encountered tlie usually devastating MHD instabilities that plagued early DZP experimenters. These encouraging results alorg with debut of a number of proof-of principle, high-current (1-2 MA in 10-100 ns) experiments have prompted consideration of the DZP as a pulsed source of DT fusion neutrons of sufficient strength (SN~1019 n/s) to provide uncollided neutron fluxes in excess of lW = 5-10 MW'/7n2 over test volumes of 10-30 !it re or greater. W1.ile this neutron source would be pulsed (100s 12s pulse widths, 10-100 Hz pulse rate), giving flux time compressions in the range 105-106, its simphcit.y, near-term feasibility, low cost, high-Q operation, and relevance to fusion systems that may provide a ptdsed commercial end-product (e.g., inertial confinement or the DZP itself) together create the impetus for preliminary consideration as a Iieut.ron source for fusion nuclear technology and materials testings, The results of a preliminary parametric systems study (focusing primarily on physics issues), conceptual design, and cost versus performance analyses are presented. The DZP promises an inexpensive and efficient, means to provide pulsed DT neutrons at an average rate in excess of 1019 n/s, with neutron currents Iu, X: 10 M W/m2 over volumes v esp 2 30 lit.re using single-pulse teclmologim that differ little from those being Ilsed in present-day experilllelltf. 1. INTRODUCTION [rapwtl-zpinch-6 /7/09-1 magnetohydrodynamic (MHD) deformations. Linear, ideal (zero resistivit.y) MHD theory predicts3-s reduced growth rates, or even stability for the m = O mode, if the current profiles are sufficiently diffuse. Minimum pressure profiles for which the m = O nlode is 4'5 The stabilizing effects of external gss ideally and linearly stable have been reported, pressure4 or finite ion Larmor radiuse have also been suggested, The development of improved high-voltage, pulsed-diagnostic, and pi:lcll-forlllatioll techniques together have led to improved results for the DZP7 and an emanced appreciation for the impact of formation conditions and plasma profiles on the pinch behavior. Recent DZP experiments at Los Alan~os8~g and at the Naval Research Laboratory 10 have initiated high-voltage discharges through small-radius (10-40 pm), solid-deuterium fibers. These I = 0.3-0.6 MA experiments do not observe the m = 1 kink instability, and the m = O sausage instability y is suppressed for 100s of Alfv6n transit times across the pinch radius as long as the plasma current is increasing (~> O). While transport and stability analysesl 1'12 are being conducted using three-dimensional resistive models in both linear aud non-linear regimes, the stability of these fiber initiated DZPS remains enigmatic, indicating the in~portance of formation method, pinch profiles, local (edge-plasma) dissipation, and dynamic stabi...

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Design of a Feedback Control System for Keda Torus Experiment Equilibrium Field Power Supply

Bai

Lan

Lee

et al. 2017

Fusion Science and Technology

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The reversed-field-pinch (RFP) fusion neutron source: A conceptual design

Cited by 3 publications

References 8 publications

A high-flux accelerator-based neutron source for fusion technology and materials testing

A high-flux accelerator-based neutron source for fusion technology and materials testing

The high-density Z-pinch as a pulsed fusion neutron source for fusion nuclear technology and materials testing

Design of a Feedback Control System for Keda Torus Experiment Equilibrium Field Power Supply

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