Impact of temperature-velocity distribution on fusion neutron peak shape
Doppler broadening of the 14 MeV DT and 2.45 MeV DD fusion neutron lines has long been our best measure of temperature in a burning plasma. At the National Ignition Facility (NIF), yields are high enough and our neutron spectrometers accurate enough that we see finer details of the peak shape. For e...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Munro, D. H [verfasserIn] |
|---|
| Format: |
Artikel |
|---|---|
| Sprache: |
Englisch |
| Erschienen: |
2017 |
|---|
| Rechteinformationen: |
Nutzungsrecht: © Author(s) |
|---|
| Übergeordnetes Werk: |
Enthalten in: Physics of plasmas - Melville, NY : AIP, 1994, 24(2017), 5, Seite 56301 |
|---|---|
| Übergeordnetes Werk: |
volume:24 ; year:2017 ; number:5 ; pages:56301 |
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|---|
| DOI / URN: |
10.1063/1.4976857 |
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| 520 | |a Doppler broadening of the 14 MeV DT and 2.45 MeV DD fusion neutron lines has long been our best measure of temperature in a burning plasma. At the National Ignition Facility (NIF), yields are high enough and our neutron spectrometers accurate enough that we see finer details of the peak shape. For example, we can measure the shift of the peak due to the bulk motion of the plasma, and we see indications of non-thermal broadening, skew, and kurtosis of the peak caused by the variations of temperature and fluid velocity during burn. We can also distinguish spectral differences among several lines of sight. This paper will review the theory of fusion neutron line shape, show examples of non-Gaussian line shapes and directional variations in NIF data, and describe detailed spectral shapes we see in radiation-hydrodynamics simulations of implosions. | ||
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| 700 | 1 | |a Spears, B. K |4 oth | |
| 700 | 1 | |a Kilkenny, J. D |4 oth | |
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10.1063/1.4976857 doi PQ20170901 (DE-627)OLC1995128732 (DE-599)GBVOLC1995128732 (PRQ)c1297-a55d5d502bfb3a18937ad8539e1e343e79e0ff6df24de32ec1e66bdfd6b498ec0 (KEY)0178548620170000024000556301impactoftemperaturevelocitydistributiononfusionneu DE-627 ger DE-627 rakwb eng 530 DE-600 Munro, D. H verfasserin aut Impact of temperature-velocity distribution on fusion neutron peak shape 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Doppler broadening of the 14 MeV DT and 2.45 MeV DD fusion neutron lines has long been our best measure of temperature in a burning plasma. At the National Ignition Facility (NIF), yields are high enough and our neutron spectrometers accurate enough that we see finer details of the peak shape. For example, we can measure the shift of the peak due to the bulk motion of the plasma, and we see indications of non-thermal broadening, skew, and kurtosis of the peak caused by the variations of temperature and fluid velocity during burn. We can also distinguish spectral differences among several lines of sight. This paper will review the theory of fusion neutron line shape, show examples of non-Gaussian line shapes and directional variations in NIF data, and describe detailed spectral shapes we see in radiation-hydrodynamics simulations of implosions. Nutzungsrecht: © Author(s) Field, J. E oth Hatarik, R oth Peterson, J. L oth Hartouni, E. P oth Spears, B. K oth Kilkenny, J. D oth Enthalten in Physics of plasmas Melville, NY : AIP, 1994 24(2017), 5, Seite 56301 (DE-627)171342119 (DE-600)1179425-2 (DE-576)038876949 1070-664X nnns volume:24 year:2017 number:5 pages:56301 http://dx.doi.org/10.1063/1.4976857 Volltext http://dx.doi.org/10.1063/1.4976857 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY SSG-OPC-AST SSG-OPC-GEO SSG-OPC-GGO GBV_ILN_47 GBV_ILN_70 AR 24 2017 5 56301 |
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10.1063/1.4976857 doi PQ20170901 (DE-627)OLC1995128732 (DE-599)GBVOLC1995128732 (PRQ)c1297-a55d5d502bfb3a18937ad8539e1e343e79e0ff6df24de32ec1e66bdfd6b498ec0 (KEY)0178548620170000024000556301impactoftemperaturevelocitydistributiononfusionneu DE-627 ger DE-627 rakwb eng 530 DE-600 Munro, D. H verfasserin aut Impact of temperature-velocity distribution on fusion neutron peak shape 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Doppler broadening of the 14 MeV DT and 2.45 MeV DD fusion neutron lines has long been our best measure of temperature in a burning plasma. At the National Ignition Facility (NIF), yields are high enough and our neutron spectrometers accurate enough that we see finer details of the peak shape. For example, we can measure the shift of the peak due to the bulk motion of the plasma, and we see indications of non-thermal broadening, skew, and kurtosis of the peak caused by the variations of temperature and fluid velocity during burn. We can also distinguish spectral differences among several lines of sight. This paper will review the theory of fusion neutron line shape, show examples of non-Gaussian line shapes and directional variations in NIF data, and describe detailed spectral shapes we see in radiation-hydrodynamics simulations of implosions. Nutzungsrecht: © Author(s) Field, J. E oth Hatarik, R oth Peterson, J. L oth Hartouni, E. P oth Spears, B. K oth Kilkenny, J. D oth Enthalten in Physics of plasmas Melville, NY : AIP, 1994 24(2017), 5, Seite 56301 (DE-627)171342119 (DE-600)1179425-2 (DE-576)038876949 1070-664X nnns volume:24 year:2017 number:5 pages:56301 http://dx.doi.org/10.1063/1.4976857 Volltext http://dx.doi.org/10.1063/1.4976857 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY SSG-OPC-AST SSG-OPC-GEO SSG-OPC-GGO GBV_ILN_47 GBV_ILN_70 AR 24 2017 5 56301 |
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Doppler broadening of the 14 MeV DT and 2.45 MeV DD fusion neutron lines has long been our best measure of temperature in a burning plasma. At the National Ignition Facility (NIF), yields are high enough and our neutron spectrometers accurate enough that we see finer details of the peak shape. For example, we can measure the shift of the peak due to the bulk motion of the plasma, and we see indications of non-thermal broadening, skew, and kurtosis of the peak caused by the variations of temperature and fluid velocity during burn. We can also distinguish spectral differences among several lines of sight. This paper will review the theory of fusion neutron line shape, show examples of non-Gaussian line shapes and directional variations in NIF data, and describe detailed spectral shapes we see in radiation-hydrodynamics simulations of implosions. |
| abstractGer |
Doppler broadening of the 14 MeV DT and 2.45 MeV DD fusion neutron lines has long been our best measure of temperature in a burning plasma. At the National Ignition Facility (NIF), yields are high enough and our neutron spectrometers accurate enough that we see finer details of the peak shape. For example, we can measure the shift of the peak due to the bulk motion of the plasma, and we see indications of non-thermal broadening, skew, and kurtosis of the peak caused by the variations of temperature and fluid velocity during burn. We can also distinguish spectral differences among several lines of sight. This paper will review the theory of fusion neutron line shape, show examples of non-Gaussian line shapes and directional variations in NIF data, and describe detailed spectral shapes we see in radiation-hydrodynamics simulations of implosions. |
| abstract_unstemmed |
Doppler broadening of the 14 MeV DT and 2.45 MeV DD fusion neutron lines has long been our best measure of temperature in a burning plasma. At the National Ignition Facility (NIF), yields are high enough and our neutron spectrometers accurate enough that we see finer details of the peak shape. For example, we can measure the shift of the peak due to the bulk motion of the plasma, and we see indications of non-thermal broadening, skew, and kurtosis of the peak caused by the variations of temperature and fluid velocity during burn. We can also distinguish spectral differences among several lines of sight. This paper will review the theory of fusion neutron line shape, show examples of non-Gaussian line shapes and directional variations in NIF data, and describe detailed spectral shapes we see in radiation-hydrodynamics simulations of implosions. |
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| title_short |
Impact of temperature-velocity distribution on fusion neutron peak shape |
| url |
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Field, J. E Hatarik, R Peterson, J. L Hartouni, E. P Spears, B. K Kilkenny, J. D |
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Field, J. E Hatarik, R Peterson, J. L Hartouni, E. P Spears, B. K Kilkenny, J. D |
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10.1063/1.4976857 |
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2024-07-03T20:34:26.583Z |
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