BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CERN//INDICO//EN
BEGIN:VEVENT
SUMMARY:Axial plasma confinement in open magnetic trap - experiments on GD
 T
DTSTART;VALUE=DATE-TIME:20191118T074500Z
DTEND;VALUE=DATE-TIME:20191118T080500Z
DTSTAMP;VALUE=DATE-TIME:20260513T222908Z
UID:indico-contribution-722@indico.inp.nsk.su
DESCRIPTION:Speakers: Elena Soldatkina (BINP)\nThe presented work is part 
 of the fundamental research on the implementation of a controlled thermonu
 clear reaction in open-type magnetic traps. The interest in such systems i
 s defined by the development of powerful neutron sources\, which are neces
 sary\, in particular\, to control hybrid fusion-fission reactors\, and\, w
 ith further development\, the creation of purely fusion reactors for energ
 y production. The main parameter from the applications point of view is th
 e energy efficiency of the system\, which rapidly increases with increasin
 g of electron temperature. One of the factors limiting the electron temper
 ature is the high thermal conductivity of the plasma along the magnetic fi
 eld lines\, which is determined by a number of complex kinetic processes i
 n the expanders — regions of the expanding magnetic flux behind the magn
 etic plugs. The main goal of the work is to study this loss channel in det
 ail and determine conditions under which these losses could be suppressed 
 to levels acceptable for thermonuclear applications of mirror magnetic tra
 ps. All the experiments were performed on GDT [1] device in Budker Institu
 te of Nuclear Physics.\nIn previous work [2] experimental results describi
 ng the electric potential in the Debye layer near the surface of the plasm
 a absorber and the average electron energy along the longitudinal coordina
 te were presented. The present work is devoted to measuring of energy carr
 ied out from the trap by one ion-electron pair along the length of the exp
 ander using a set of probes namely pyroelectric bolometer and ion flux pro
 be. This dependence on the residual gas density in the expander tank has a
 lso been investigated. These data will make it possible to complete the th
 eoretical model currently being developed [3]\, which describes the kineti
 cs of processes in the expander of mirror trap.\n\n1. A. Ivanov and V. Pri
 khodko\, Plasma Phys. Controlled Fusion 55\, 063001 (2013).\n2. E. Soldatk
 ina\, et al. Physics of Plasmas 24\, 022505 (2017).\n3. D. Skovorodin\, Ph
 ysics of Plasmas 26\, 012503 (2019).\n\nhttps://indico.inp.nsk.su/event/19
 /contributions/722/
LOCATION:Budker INP Conference Hall
URL:https://indico.inp.nsk.su/event/19/contributions/722/
END:VEVENT
END:VCALENDAR