The National Spherical Torus Experiment-Upgrade poloidal high-k scattering system pitch angle design modifications

X. Liu; C. W. Domier; J. Dannenberg; Y. Zhu; J. R. Sirigiri; Y. Ren; B. Stratton; N. C. Luhmann

doi:10.1063/5.0099912

The National Spherical Torus Experiment-Upgrade poloidal high-k scattering system pitch angle design modifications

X. Liu, C. W. Domier, J. Dannenberg, Y. Zhu, J. R. Sirigiri, Y. Ren, B. Stratton, N. C. Luhmann

PPPL NSTX

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

A 693 GHz, eight-channel, poloidal high-k (k refers to wavenumber) collective scattering system is under development for the National Spherical Torus Experiment-Upgrade device. It will replace the previous 280 GHz, five-channel, tangential scattering system to study high-k electron density fluctuations, thereby providing a measurement of the kθ-spectrum of both electron temperature gradient and ion temperature gradient modes. A tool is under development to calculate the wavenumber that exists in the presence of strong magnetic pitch angles. We use this tool to motivate a new receiver optical design for significantly improved performance, details of which are presented herein.

Original language	English (US)
Article number	103509
Journal	Review of Scientific Instruments
Volume	93
Issue number	10
DOIs	https://doi.org/10.1063/5.0099912
State	Published - Oct 1 2022

All Science Journal Classification (ASJC) codes

Instrumentation

Access to Document

10.1063/5.0099912

Cite this

@article{93bdd1a0ee2448e685e3c1c9cd01ad1f,

title = "The National Spherical Torus Experiment-Upgrade poloidal high-k scattering system pitch angle design modifications",

abstract = "A 693 GHz, eight-channel, poloidal high-k (k refers to wavenumber) collective scattering system is under development for the National Spherical Torus Experiment-Upgrade device. It will replace the previous 280 GHz, five-channel, tangential scattering system to study high-k electron density fluctuations, thereby providing a measurement of the kθ-spectrum of both electron temperature gradient and ion temperature gradient modes. A tool is under development to calculate the wavenumber that exists in the presence of strong magnetic pitch angles. We use this tool to motivate a new receiver optical design for significantly improved performance, details of which are presented herein.",

author = "X. Liu and Domier, \{C. W.\} and J. Dannenberg and Y. Zhu and Sirigiri, \{J. R.\} and Y. Ren and B. Stratton and Luhmann, \{N. C.\}",

note = "Publisher Copyright: {\textcopyright} 2022 Author(s).",

year = "2022",

month = oct,

day = "1",

doi = "10.1063/5.0099912",

language = "English (US)",

volume = "93",

journal = "Review of Scientific Instruments",

issn = "0034-6748",

publisher = "American Institute of Physics",

number = "10",

}

TY - JOUR

T1 - The National Spherical Torus Experiment-Upgrade poloidal high-k scattering system pitch angle design modifications

AU - Liu, X.

AU - Domier, C. W.

AU - Dannenberg, J.

AU - Zhu, Y.

AU - Sirigiri, J. R.

AU - Ren, Y.

AU - Stratton, B.

AU - Luhmann, N. C.

PY - 2022/10/1

Y1 - 2022/10/1

N2 - A 693 GHz, eight-channel, poloidal high-k (k refers to wavenumber) collective scattering system is under development for the National Spherical Torus Experiment-Upgrade device. It will replace the previous 280 GHz, five-channel, tangential scattering system to study high-k electron density fluctuations, thereby providing a measurement of the kθ-spectrum of both electron temperature gradient and ion temperature gradient modes. A tool is under development to calculate the wavenumber that exists in the presence of strong magnetic pitch angles. We use this tool to motivate a new receiver optical design for significantly improved performance, details of which are presented herein.

AB - A 693 GHz, eight-channel, poloidal high-k (k refers to wavenumber) collective scattering system is under development for the National Spherical Torus Experiment-Upgrade device. It will replace the previous 280 GHz, five-channel, tangential scattering system to study high-k electron density fluctuations, thereby providing a measurement of the kθ-spectrum of both electron temperature gradient and ion temperature gradient modes. A tool is under development to calculate the wavenumber that exists in the presence of strong magnetic pitch angles. We use this tool to motivate a new receiver optical design for significantly improved performance, details of which are presented herein.

UR - https://www.scopus.com/pages/publications/85139763960

UR - https://www.scopus.com/inward/citedby.url?scp=85139763960&partnerID=8YFLogxK

U2 - 10.1063/5.0099912

DO - 10.1063/5.0099912

M3 - Article

C2 - 36319363

AN - SCOPUS:85139763960

SN - 0034-6748

VL - 93

JO - Review of Scientific Instruments

JF - Review of Scientific Instruments

IS - 10

M1 - 103509

ER -

The National Spherical Torus Experiment-Upgrade poloidal high-k scattering system pitch angle design modifications

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this