Research output: Contribution to journal › Article › peer-review
Emittance Variation of a High-Current Relativistic Electron Beam in a Bend Magnet. / Sandalov, Evgeny S.; Sinitsky, Stanislav L.; Skovorodin, Dmitrii I. et al.
In: IEEE Transactions on Plasma Science, Vol. 49, No. 9, 9524729, 09.2021, p. 2737-2749.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Emittance Variation of a High-Current Relativistic Electron Beam in a Bend Magnet
AU - Sandalov, Evgeny S.
AU - Sinitsky, Stanislav L.
AU - Skovorodin, Dmitrii I.
AU - Nikiforov, Danila A.
AU - Logachev, Pavel V.
AU - Starostenko, Alexander A.
AU - Akhmetov, Alexander R.
AU - Nikitin, Oleg A.
N1 - Publisher Copyright: © 1973-2012 IEEE.
PY - 2021/9
Y1 - 2021/9
N2 - The article presents the investigation results on the main angular divergence sources of a high-current relativistic electron beam when it passes through a real 12° bend magnet of the transport system in the linear induction accelerator (LIA), being developed by collaboration of Budker Institute of Nuclear Physics (BINP), Novosibirsk, Russia, and Russian Federal Nuclear Center - Zababakhin All-Russia Research Institute of Technical Physics (RFNC-VNIITF). The main results of the work are the calculated trajectories of the beam electrons, the shape of its cross section, as well as the change in the normalized emittance of the beam as it passes through the region of the bend magnet. It was shown that at typical beam parameters - electron energy of 20 MeV, beam current of 2 kA, and beam radius of 2 cm - the emittance of a high-current relativistic electron beam with uniform current and charge densities after the bend element is determined mostly by the magnet aberrations and much less by the beam self-fields. Optimization of the dipole magnet geometry made it possible to achieve a substantial decrease in the beam emittance with geometric expansion of the magnet in the median plane of the beam.
AB - The article presents the investigation results on the main angular divergence sources of a high-current relativistic electron beam when it passes through a real 12° bend magnet of the transport system in the linear induction accelerator (LIA), being developed by collaboration of Budker Institute of Nuclear Physics (BINP), Novosibirsk, Russia, and Russian Federal Nuclear Center - Zababakhin All-Russia Research Institute of Technical Physics (RFNC-VNIITF). The main results of the work are the calculated trajectories of the beam electrons, the shape of its cross section, as well as the change in the normalized emittance of the beam as it passes through the region of the bend magnet. It was shown that at typical beam parameters - electron energy of 20 MeV, beam current of 2 kA, and beam radius of 2 cm - the emittance of a high-current relativistic electron beam with uniform current and charge densities after the bend element is determined mostly by the magnet aberrations and much less by the beam self-fields. Optimization of the dipole magnet geometry made it possible to achieve a substantial decrease in the beam emittance with geometric expansion of the magnet in the median plane of the beam.
KW - Beam emittance
KW - bend magnet
KW - Electron beam applications
KW - Electron tubes
KW - high-current relativistic electron beam
KW - Laser beams
KW - linear induction accelerator (LIA)
KW - Nuclear physics
KW - Physics
KW - self-electric and magnetic beam fields
KW - Soft magnetic materials
KW - space charge effects.
KW - Toroidal magnetic fields
KW - space charge effects
UR - http://www.scopus.com/inward/record.url?scp=85114726403&partnerID=8YFLogxK
U2 - 10.1109/TPS.2021.3105661
DO - 10.1109/TPS.2021.3105661
M3 - Article
AN - SCOPUS:85114726403
VL - 49
SP - 2737
EP - 2749
JO - IEEE Transactions on Plasma Science
JF - IEEE Transactions on Plasma Science
SN - 0093-3813
IS - 9
M1 - 9524729
ER -
ID: 34189430