Speaker
Dr
Peter Bagryansky
(Budker Institute of Nuclear Physics SB RAS)
Description
The unique result obtained in the seventies of the last century on 2SIIB (LLNL, USA) device [1] gives reason to expect for the possibility of realization of reversed magnetic field configuration in a mirror trap with powerful neutral beams. Ratio between diamagnetic field perturbation and vacuum magnetic field B/B=0.9 was achieved with 7 MW of full power of neutral beams and current density of neutrals 0.7 atomic A/cm$^2$ at the plasma axis in special series of 2XIIB experiment. Progress in the development of neutral beam injection allows at the present time to realize the neutral current density approximately 3-4 times higher than in 2XIIB experiment at lower total power ( 3 MW).
Circumstances mentioned above have motivated development the project CAT (Compact Axisymmetric Toroid) directed on field-reversal experiments in axisymmetric magnetic mirror trap equipped with two geometrically focused high equivalent current density neutral beams. Estimated total current density of neutral beams on the axis of the plasma column is 3 atomic A/cm$^2$. Target plasma with characteristic radius a=7 cm, density of 10$^{13}$ cm$^{-3}$ and electron temperature about 50 eV will be generated by special plasma source, developed at the former time for AMBAL experiment.
Based on computer simulations under certain assumptions these parameters of neutral beam system and plasma source allow to obtain the field reversed configuration.
Report describes physical and technical detail of the CAT project, Report describes physical and technical detail of the CAT project, which scheduled for realization at the Budker Institute.
1. W.C. Turner, J.F. Clauser, F.H. Coensgenet al, Nuclear Fusion, 1979, Vol.19, No.8, p.1011
Primary author
Dr
Peter Bagryansky
(Budker Institute of Nuclear Physics SB RAS)
Co-authors
Dr
Alexander Ivanov
(Budker Institute of Nuclear Physics SB RAS)
Mr
Alexey Sorokin
(Budker Institute of Nuclear Physics SB RAS)
Dr
Andrej Lizunov
(Budker Institute of Nuclear Physics SB RAS)
Dr
Ivan Chernoshtanov
(Budker Institute of Nuclear Physics SB RAS)
Dr
Petr Deichuli
(Budker Institute of Nuclear Physics SB RAS)
Dr
Sergey Murakhtin
(Budker Institute of Nuclear Physics SB RAS)
Dr
Timur Akhmetov
(Budker Institute of Nuclear Physics SB RAS)
Dr
Vadim Prikhodko
(Budker Institute of Nuclear Physics SB RAS)
Mr
Valery Mishagin
(Budker Institute of Nuclear Physics SB RAS, Novosibirsk, Russia,)
