Proton deflectometry of a magnetic reconnection geometry
Laser-driven magnetic reconnection is investigated using proton deflectometry. Two laser beams of nanosecond duration were focused in close proximity on a solid target to intensities of I∼1× 1015 W cm-2. Through the well known ∇ ne ×∇ Te mechanism, azimuthal magnetic fields are generated around each...
| Main Authors: | , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2010
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| _version_ | 1797091781061378048 |
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| author | Willingale, L Nilson, P Kaluza, M Dangor, A Evans, R Fernandes, P Haines, MG Kamperidis, C Kingham, R Ridgers, C Sherlock, M Thomas, A Wei, MS Najmudin, Z Krushelnick, K Bandyopadhyay, S Notley, M Minardi, S Tatarakis, M Rozmus, W |
| author_facet | Willingale, L Nilson, P Kaluza, M Dangor, A Evans, R Fernandes, P Haines, MG Kamperidis, C Kingham, R Ridgers, C Sherlock, M Thomas, A Wei, MS Najmudin, Z Krushelnick, K Bandyopadhyay, S Notley, M Minardi, S Tatarakis, M Rozmus, W |
| author_sort | Willingale, L |
| collection | OXFORD |
| description | Laser-driven magnetic reconnection is investigated using proton deflectometry. Two laser beams of nanosecond duration were focused in close proximity on a solid target to intensities of I∼1× 1015 W cm-2. Through the well known ∇ ne ×∇ Te mechanism, azimuthal magnetic fields are generated around each focal spot. During the expansion of the two plasmas, oppositely oriented field lines are brought together resulting in magnetic reconnection in the region between the two focal spots. The spatial scales and plasma parameters are consistent with the reconnection proceeding due to a Hall mechanism. An optimum focal spot separation for magnetic reconnection to occur is found to be ≈400±100 μm. Proton probing of the temporal evolution of the interaction shows the formation of the boundary layer between the two expanding plasma plumes and associated magnetic fields, as well as an instability later in the interaction. Such laboratory experiments provide an opportunity to investigate magnetic reconnection under unique conditions and have possible implications for multiple beam applications such as inertial confinement fusion experiments. © 2010 American Institute of Physics. |
| first_indexed | 2024-03-07T03:37:25Z |
| format | Journal article |
| id | oxford-uuid:bcc2aa02-ff53-4e0a-97de-016ee7c0ed74 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T03:37:25Z |
| publishDate | 2010 |
| record_format | dspace |
| spelling | oxford-uuid:bcc2aa02-ff53-4e0a-97de-016ee7c0ed742022-03-27T05:26:44ZProton deflectometry of a magnetic reconnection geometryJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:bcc2aa02-ff53-4e0a-97de-016ee7c0ed74EnglishSymplectic Elements at Oxford2010Willingale, LNilson, PKaluza, MDangor, AEvans, RFernandes, PHaines, MGKamperidis, CKingham, RRidgers, CSherlock, MThomas, AWei, MSNajmudin, ZKrushelnick, KBandyopadhyay, SNotley, MMinardi, STatarakis, MRozmus, WLaser-driven magnetic reconnection is investigated using proton deflectometry. Two laser beams of nanosecond duration were focused in close proximity on a solid target to intensities of I∼1× 1015 W cm-2. Through the well known ∇ ne ×∇ Te mechanism, azimuthal magnetic fields are generated around each focal spot. During the expansion of the two plasmas, oppositely oriented field lines are brought together resulting in magnetic reconnection in the region between the two focal spots. The spatial scales and plasma parameters are consistent with the reconnection proceeding due to a Hall mechanism. An optimum focal spot separation for magnetic reconnection to occur is found to be ≈400±100 μm. Proton probing of the temporal evolution of the interaction shows the formation of the boundary layer between the two expanding plasma plumes and associated magnetic fields, as well as an instability later in the interaction. Such laboratory experiments provide an opportunity to investigate magnetic reconnection under unique conditions and have possible implications for multiple beam applications such as inertial confinement fusion experiments. © 2010 American Institute of Physics. |
| spellingShingle | Willingale, L Nilson, P Kaluza, M Dangor, A Evans, R Fernandes, P Haines, MG Kamperidis, C Kingham, R Ridgers, C Sherlock, M Thomas, A Wei, MS Najmudin, Z Krushelnick, K Bandyopadhyay, S Notley, M Minardi, S Tatarakis, M Rozmus, W Proton deflectometry of a magnetic reconnection geometry |
| title | Proton deflectometry of a magnetic reconnection geometry |
| title_full | Proton deflectometry of a magnetic reconnection geometry |
| title_fullStr | Proton deflectometry of a magnetic reconnection geometry |
| title_full_unstemmed | Proton deflectometry of a magnetic reconnection geometry |
| title_short | Proton deflectometry of a magnetic reconnection geometry |
| title_sort | proton deflectometry of a magnetic reconnection geometry |
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