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

Glasser, Alan; Cohen, Samuel

doi:10.11578/1888263

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

Dataset
Other Related Research

Authors:

Glasser, Alan; Cohen, Samuel

Princeton Plasma Physics Laboratory

Publication Date:: Fri Apr 15 04:00:00 UTC 2022

DOE Contract Number:: AC02-09CH11466

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

Sponsoring Org.:: USDOE Office of Science (SC)

OSTI Identifier:: 1888263

DOI:: https://doi.org/10.11578/1888263

Citation Formats


                    Glasser, Alan, and Cohen, Samuel. Interpreting ion-energy distributions using charge exchange emitted from deeply kinetic field-reversed-configuration plasmas.  United States: N. p., 2022. 
        Web.  doi:10.11578/1888263.

Copy to clipboard


                    Glasser, Alan, & Cohen, Samuel. Interpreting ion-energy distributions using charge exchange emitted from deeply kinetic field-reversed-configuration plasmas.  United States.  doi:https://doi.org/10.11578/1888263

Copy to clipboard


                    Glasser, Alan, and Cohen, Samuel. 2022.  
"Interpreting ion-energy distributions using charge exchange emitted from deeply kinetic field-reversed-configuration plasmas".  United States.  doi:https://doi.org/10.11578/1888263.  https://www.osti.gov/servlets/purl/1888263. Pub date:Fri Apr 15 04:00:00 UTC 2022

Copy to clipboard


                    
@article{osti_1888263,

  title        = {Interpreting ion-energy distributions using charge exchange emitted from deeply kinetic field-reversed-configuration plasmas},

  author       = {Glasser, Alan and Cohen, Samuel},

  abstractNote = {},

  doi          = {10.11578/1888263},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {Fri Apr 15 04:00:00 UTC 2022},

  month        = {Fri Apr 15 04:00:00 UTC 2022}

}

Copy to clipboard

Dataset:

View Dataset

DOI: https://doi.org/10.11578/1888263

Save / Share:

Export Metadata

Save to My Library

Similar records in DOE Data Explorer and OSTI.GOV collections:

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

Journal Article Glasser, A. H. ; Cohen, S. A. - Physics of Plasmas

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

Journal Article Glasser, A. H. ; Cohen, S. A. - Physics of Plasmas

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, IEDp. In high-β plasma with field nulls and ion gyro-radii comparable to the plasma size, the measured ion energy distribution (IEDm) of the CX outflux will depend on the viewing angle and position of the detector. We describe the physics for this, results from a synthetic diagnostic code that contrasts the IEDm to the IEDp within relatively small and hot field-reversed-configuration plasmas, and how these data can showmore »« less
Data from the Princeton Field Reversal Configuration (PFRC) Experiment

Dataset Cohen, Samuel A. ; Swanson, Charles ; Jandovitz, Peter ; ...
Broad ion energy distributions in helicon wave-coupled helium plasma

Dataset Woller, K. B. ; Whyte, D. G. ; Wright, G. M.

Helium ion energy distributions were measured in the helicon wave-coupled plasma of the DIONISOS experiment with a retarding field energy analyzer. The shape of the energy distribution is double-peaked, characteristic of RF plasma potential modulation. The broad distribution is located within a radius of 0.8 cm while the quartz tube of the plasma source has an inner radius of 2.2 cm. The ion energy distribution rapidly changes from double-peaked to a single peak in the radius range of 0.7 to 0.9 cm. The average ion energy is approximately uniform across the plasma column including the double-peaked and single peak regions.more »« less
High-field side scrape-off layer investigation: plasma profiles and impurity screening behavior in near-double-null configurations

Dataset LaBombard, B. ; Kuang, A. Q. ; Brunner, D. ; ...

New experiments on Alcator C-Mod reveal that the favorable impurity screening characteristics of the high-field side (HFS) scrape-off layer (SOL), previously reported for single null geometries, is retained in double null configurations, despite the formation of an extremely thin SOL. In balanced double-null, nitrogen injected locally into the HFS SOL is better screened by a factor of 2.5 compared to the same injection into the low field side (LFS) SOL. This result is insensitive to plasma current and Greenwald fraction. Nitrogen injected into the HFS SOL is not as well screened (only a factor of 1.5 improvement over LFS) inmore »« less

Similar Records