TY - JOUR
T1 - Detection of current-sheet and bipolar ion flows in a self-generated antiparallel magnetic field of laser-produced plasmas for magnetic reconnection research
AU - Morita, T.
AU - Kojima, T.
AU - Matsuo, S.
AU - Matsukiyo, S.
AU - Isayama, S.
AU - Yamazaki, R.
AU - Tanaka, S. J.
AU - Aihara, K.
AU - Sato, Y.
AU - Shiota, J.
AU - Pan, Y.
AU - Tomita, K.
AU - Takezaki, T.
AU - Kuramitsu, Y.
AU - Sakai, K.
AU - Egashira, S.
AU - Ishihara, H.
AU - Kuramoto, O.
AU - Matsumoto, Y.
AU - Maeda, K.
AU - Sakawa, Y.
N1 - Publisher Copyright:
© 2022 American Physical Society.
PY - 2022/11
Y1 - 2022/11
N2 - Magnetic reconnection in laser-produced magnetized plasma is investigated by using optical diagnostics. The magnetic field is generated via the Biermann battery effect, and the inversely directed magnetic field lines interact with each other. It is shown by self-emission measurement that two colliding plasmas stagnate on a midplane, forming two planar dense regions, and that they interact later in time. Laser Thomson scattering spectra are distorted in the direction of the self-generated magnetic field, indicating asymmetric ion velocity distribution and plasma acceleration. In addition, the spectra perpendicular to the magnetic field show different peak intensity, suggesting an electron current formation. These results are interpreted as magnetic field dissipation, reconnection, and outflow acceleration. Two-directional laser Thomson scattering is, as discussed here, a powerful tool for the investigation of microphysics in the reconnection region.
AB - Magnetic reconnection in laser-produced magnetized plasma is investigated by using optical diagnostics. The magnetic field is generated via the Biermann battery effect, and the inversely directed magnetic field lines interact with each other. It is shown by self-emission measurement that two colliding plasmas stagnate on a midplane, forming two planar dense regions, and that they interact later in time. Laser Thomson scattering spectra are distorted in the direction of the self-generated magnetic field, indicating asymmetric ion velocity distribution and plasma acceleration. In addition, the spectra perpendicular to the magnetic field show different peak intensity, suggesting an electron current formation. These results are interpreted as magnetic field dissipation, reconnection, and outflow acceleration. Two-directional laser Thomson scattering is, as discussed here, a powerful tool for the investigation of microphysics in the reconnection region.
UR - http://www.scopus.com/inward/record.url?scp=85142328582&partnerID=8YFLogxK
U2 - 10.1103/PhysRevE.106.055207
DO - 10.1103/PhysRevE.106.055207
M3 - 学術論文
C2 - 36559487
AN - SCOPUS:85142328582
SN - 2470-0045
VL - 106
JO - Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
JF - Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
IS - 5
M1 - 055207
ER -