Velocity-space tomography of fusion plasmas by collective Thomson scattering of gyrotron radiation

Mirko Salewski; A.S. Jacobsen; Thomas Jensen; Søren Bang Korsholm; Frank Leipold; Jens Madsen; D. Moseev; Stefan Kragh Nielsen; Jesper Rasmussen; Morten Stejner Pedersen

doi:10.1109/IRMMW-THz.2016.7758534

Velocity-space tomography of fusion plasmas by collective Thomson scattering of gyrotron radiation

Mirko Salewski, A.S. Jacobsen, Thomas Jensen, Søren Bang Korsholm, Frank Leipold, Jens Madsen, D. Moseev, Stefan Kragh Nielsen, Jesper Rasmussen, Morten Stejner Pedersen

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Abstract

We propose a diagnostic capable of measuring 2D fast-ion velocity distribution functions 푓2퐷푣 in the MeV-range in magnetized fusion plasmas. Today velocity-space tomography based on fast-ion D훼 spectroscopy is regularly used to measure 푓2퐷푣 for ion energies below 100 keV. Unfortunately, the signal-tonoise ratio becomes fairly low for MeV-range ions. Ions at any energy can be detected well by collective Thomson scattering of mm-wave radiation from a high-power gyrotron. We demonstrate how collective Thomson scattering can be used to measure 푓2퐷푣 in the MeV-range in reactor relevant plasmas such as in the tokamaks ITER or DEMO.

Original language	English
Title of host publication	2016 41st International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz)
Number of pages	2
Publisher	IEEE
Publication date	2016
ISBN (Print)	978-1-4673-8486-5
ISBN (Electronic)	978-1-4673-8485-8
DOIs	https://doi.org/10.1109/IRMMW-THz.2016.7758534
Publication status	Published - 2016
Event	41st International Conference on Infrared, Millimeter and Terahertz Waves - Copenhagen, Denmark Duration: 25 Sept 2016 → 30 Sept 2016 Conference number: 41

Conference

Conference	41st International Conference on Infrared, Millimeter and Terahertz Waves
Number	41
Country/Territory	Denmark
City	Copenhagen
Period	25/09/2016 → 30/09/2016

Series	International Conference on Infrared, Millimeter and Terahertz Waves
ISSN	2162-2027

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Salewski, M., Jacobsen, A. S., Jensen, T., Korsholm, S. B., Leipold, F., Madsen, J., Moseev, D., Nielsen, S. K., Rasmussen, J., & Pedersen, M. S. (2016). Velocity-space tomography of fusion plasmas by collective Thomson scattering of gyrotron radiation. In 2016 41st International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz) IEEE. https://doi.org/10.1109/IRMMW-THz.2016.7758534

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title = "Velocity-space tomography of fusion plasmas by collective Thomson scattering of gyrotron radiation",

abstract = "We propose a diagnostic capable of measuring 2D fast-ion velocity distribution functions 푓2퐷푣 in the MeV-range in magnetized fusion plasmas. Today velocity-space tomography based on fast-ion D훼 spectroscopy is regularly used to measure 푓2퐷푣 for ion energies below 100 keV. Unfortunately, the signal-tonoise ratio becomes fairly low for MeV-range ions. Ions at any energy can be detected well by collective Thomson scattering of mm-wave radiation from a high-power gyrotron. We demonstrate how collective Thomson scattering can be used to measure 푓2퐷푣 in the MeV-range in reactor relevant plasmas such as in the tokamaks ITER or DEMO.",

author = "Mirko Salewski and A.S. Jacobsen and Thomas Jensen and Korsholm, {S{\o}ren Bang} and Frank Leipold and Jens Madsen and D. Moseev and Nielsen, {Stefan Kragh} and Jesper Rasmussen and Pedersen, {Morten Stejner}",

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Salewski, M, Jacobsen, AS, Jensen, T, Korsholm, SB, Leipold, F, Madsen, J, Moseev, D, Nielsen, SK , Rasmussen, J & Pedersen, MS 2016, Velocity-space tomography of fusion plasmas by collective Thomson scattering of gyrotron radiation. in 2016 41st International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz) . IEEE, International Conference on Infrared, Millimeter and Terahertz Waves, 41st International Conference on Infrared, Millimeter and Terahertz Waves, Copenhagen, Denmark, 25/09/2016. https://doi.org/10.1109/IRMMW-THz.2016.7758534

Velocity-space tomography of fusion plasmas by collective Thomson scattering of gyrotron radiation. / Salewski, Mirko; Jacobsen, A.S.; Jensen, Thomas et al.
2016 41st International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz) . IEEE, 2016. ( International Conference on Infrared, Millimeter and Terahertz Waves).

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

TY - GEN

T1 - Velocity-space tomography of fusion plasmas by collective Thomson scattering of gyrotron radiation

AU - Salewski, Mirko

AU - Jacobsen, A.S.

AU - Jensen, Thomas

AU - Korsholm, Søren Bang

AU - Leipold, Frank

AU - Madsen, Jens

AU - Moseev, D.

AU - Nielsen, Stefan Kragh

AU - Rasmussen, Jesper

AU - Pedersen, Morten Stejner

N1 - Conference code: 41

PY - 2016

Y1 - 2016

N2 - We propose a diagnostic capable of measuring 2D fast-ion velocity distribution functions 푓2퐷푣 in the MeV-range in magnetized fusion plasmas. Today velocity-space tomography based on fast-ion D훼 spectroscopy is regularly used to measure 푓2퐷푣 for ion energies below 100 keV. Unfortunately, the signal-tonoise ratio becomes fairly low for MeV-range ions. Ions at any energy can be detected well by collective Thomson scattering of mm-wave radiation from a high-power gyrotron. We demonstrate how collective Thomson scattering can be used to measure 푓2퐷푣 in the MeV-range in reactor relevant plasmas such as in the tokamaks ITER or DEMO.

AB - We propose a diagnostic capable of measuring 2D fast-ion velocity distribution functions 푓2퐷푣 in the MeV-range in magnetized fusion plasmas. Today velocity-space tomography based on fast-ion D훼 spectroscopy is regularly used to measure 푓2퐷푣 for ion energies below 100 keV. Unfortunately, the signal-tonoise ratio becomes fairly low for MeV-range ions. Ions at any energy can be detected well by collective Thomson scattering of mm-wave radiation from a high-power gyrotron. We demonstrate how collective Thomson scattering can be used to measure 푓2퐷푣 in the MeV-range in reactor relevant plasmas such as in the tokamaks ITER or DEMO.

U2 - 10.1109/IRMMW-THz.2016.7758534

DO - 10.1109/IRMMW-THz.2016.7758534

M3 - Article in proceedings

SN - 978-1-4673-8486-5

T3 - International Conference on Infrared, Millimeter and Terahertz Waves

BT - 2016 41st International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz)

PB - IEEE

T2 - 41st International Conference on Infrared, Millimeter and Terahertz Waves

Y2 - 25 September 2016 through 30 September 2016

ER -

Salewski M, Jacobsen AS, Jensen T, Korsholm SB, Leipold F, Madsen J et al. Velocity-space tomography of fusion plasmas by collective Thomson scattering of gyrotron radiation. In 2016 41st International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz) . IEEE. 2016. ( International Conference on Infrared, Millimeter and Terahertz Waves). doi: 10.1109/IRMMW-THz.2016.7758534

Velocity-space tomography of fusion plasmas by collective Thomson scattering of gyrotron radiation

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