Interpreting ion-energy distributions using charge exchange emitted from deeply kinetic field-reversed-configuration plasmas

Glasser, A. H.; Cohen, S. A.

doi:10.1063/5.0089430

Title: Interpreting ion-energy distributions using charge exchange emitted from deeply kinetic field-reversed-configuration plasmas

Journal Article · 19 May 2022 · Physics of Plasmas

DOI: https://doi.org/10.1063/5.0089430 · OSTI ID:1888524

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Fusion Theory and Computation, Inc., Kingston, WA (United States)
Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)

Energy resolving the atomic hydrogen outflux created within plasmas by charge exchange (CX) of hot plasma ions with cooler hydrogen neutrals is used to infer the ion energy distribution within the plasma, IED_p. In high- β plasma with field nulls and ion gyro-radii comparable to the plasma size, the measured ion energy distribution (IED_m) of the CX outflux will depend on the viewing angle and position of the detector. Here, we describe the physics for this, results from a synthetic diagnostic code that contrasts the IED_m to the IED_p within relatively small and hot field-reversed-configuration plasmas, and how these data can show the presence of magnetic nulls and different orbit classes in the plasma.

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Research Organization:: Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Fusion Energy Sciences (FES)

Grant/Contract Number:: AC02-09CH11466

OSTI ID:: 1888524

Journal Information:: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 5 Vol. 29; ISSN 1070-664X

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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Interpreting ion-energy distributions using charge exchange emitted from deeply kinetic field-reversed-configuration plasmas Glasser, Alan; Cohen, Samuel Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States) https://doi.org/10.11578/1888263	dataset	January 2022

Cited By (2)

Interpreting ion-energy distributions using charge exchange emitted from deeply kinetic field-reversed-configuration plasmas Glasser, Alan; Cohen, Samuel Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States) https://doi.org/10.11578/1888263	dataset	January 2022
Interpreting ion-energy distributions using charge exchange emitted from deeply kinetic field-reversed-configuration plasmas Glasser, Alan; Cohen, Samuel Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States) https://doi.org/10.11578/1888263	dataset	January 2022

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Title: Interpreting ion-energy distributions using charge exchange emitted from deeply kinetic field-reversed-configuration plasmas

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