Prof.
Yican Wu
(Institute of Nuclear Energy Safety Technology, Chinese Academy of Sciences)
, Prof.
Zhibin Chen
(Institute of Nuclear Energy Safety Technology, CAS)
18/11/2019, 09:40
Axisymmetric LInear Advanced Neutron sourCE
Plenary Presentation
This presentation is contributed by the Institute of Nuclear Energy Safety Technology (INEST), Chinese Academy of Sciences and the Budker Institute of Nuclear Physics (BINP), Russian Academy of Sciences. It will be presented the development strategy and plan of construction of a GDT-based fusion volumetric neutron source project named Axisymmetric LInear Advanced Neutron sourCE (ALIANCE). The...
Prof.
Alexander Ivanov
(Budker Institute of Nuclear Physics)
18/11/2019, 10:30
Axisymmetric LInear Advanced Neutron sourCE
Plenary Presentation
The report presents an update on the continuing work on open magnetic traps in BINP RAS. It discusses the construction of a gas-dynamic trap with improved longitudinal confinement named GDMT, as well as the experiments on existing (GDT, SMOLA) and newly constructed (GOL-NB, CAT) devices. The report highlights the main experimental achievements obtained on the facilities of previous generation...
Dr
Qiusun Zeng
(Institute of Nuclear Energy Safety Technology, CAS)
18/11/2019, 11:40
Axisymmetric LInear Advanced Neutron sourCE
Plenary Presentation
The report presents results of neutron shielding calculation for ALIANCE project, especially for ALIANCE-2. We used the Monte Carlo transport program SuperMC with data library FENDL 2.1. The calculation results show that the 5cm thickness of the shielding layer of ALIANCE-2 is enough. The highest nuclear thermal deposition is at Coil-3 (C3) with a value 0.92W/m3. It is much lower than ITER's...
Dr
Dmitry Yakovlev
(BINP)
18/11/2019, 12:10
Axisymmetric LInear Advanced Neutron sourCE
Contributed Oral
The report presents the design ideas behind the low- and moderate-power prototypes of continuously operating volumetric fusion neutron sources based on gas-dynamic magnetic mirror devices with neutral beam injection. A possible arrangement of vacuum, magnetic, plasma stabilization and sustainment, and neutron shielding subsystems is presented, along with their required parameters that are...
Dr
Vadim Prikhodko
(Budker Institute of Nuclear Physics)
18/11/2019, 12:40
Axisymmetric LInear Advanced Neutron sourCE
Contributed Oral
An international mega-science project named ALIANCE (Axisymmetric LInear Advanced Neutron sourCE) was jointly initiated by INEST CAS and BINP RAS. It is aimed at the development of fusion volumetric neutron sources based on the GDT concept of plasma confinement. The report reviews the results of numerical simulations of plasma parameters for ALIANCE project done by DOL code. Three devices are...
Dr
Dmitriy Skovorodin
(BINP)
18/11/2019, 14:25
GDT: resent results of studies in support of the ALIANCE project
Contributed Oral
Axial confinement of electrons in mirror trap was studied. The formation of electrostatic potential in expander divertors was examined. The numerical simulations was used to verify the theoretical estimations. The influence of secondary emission of cold electrons from end plate on plasma confinement was studied.
Dr
Elena Soldatkina
(BINP)
18/11/2019, 14:45
GDT: resent results of studies in support of the ALIANCE project
Contributed Oral
The presented work is part of the fundamental research on the implementation of a controlled thermonuclear reaction in open-type magnetic traps. The interest in such systems is defined by the development of powerful neutron sources, which are necessary, in particular, to control hybrid fusion-fission reactors, and, with further development, the creation of purely fusion reactors for energy...
Dr
Peter Bagryansky
(Budker Institute of Nuclear Physics)
18/11/2019, 15:05
GDT: resent results of studies in support of the ALIANCE project
Contributed Oral
The report provides a review of research results aimed at developing a method for generating preliminary plasma in open type magnetic traps using ECR gas breakdown. This method has proven positively itself in a number of experiments with plasma heating by neutral beam and auxiliary ECR heating at the GDT device. In addition, the results of recent studies on the development of a method for...
Dr
Andrej Lizunov
(Budker Institute of nuclear physics)
18/11/2019, 15:25
GDT: resent results of studies in support of the ALIANCE project
Contributed Oral
Devices of the GDT type belonging to the next generation are being proposed for a vast range of scientific and technological applications, including fusion neutron sources, hybrid fission-fusion power plants and others. The next step GDT-like system is deemed as a large-scale installation sustaining plasmas with a significant fusion power generation in a stationary or long-pulse regime. The...
Prof.
Igor Kotelnikov
(Budker INP)
18/11/2019, 15:45
GDT: resent results of studies in support of the ALIANCE project
Contributed Oral
An analysis is made of possibility of using a device topologically equivalent to a nonparaxial MHD stabilizer as a divertor for the projected ALIANCE source of fusion neutrons on the gas-dynamic trap, which should operate in a continuous mode. A side effect of adding a divertor to a linear trap is the expected improvement in plasma MHD stability, which was previously observed at TARA [Phys....
Mr
Jun Song
(Institute of Nuclear Energy Safety Technology, CAS)
18/11/2019, 16:25
The use of neutron sources based on linear traps and related technologies
Contributed Oral
The space propulsion system of high performance is required for deep space exploration missions such as Mars and Jupiter exploration. The fusion propulsion system has excellent performance of ultra-high specific impulse, high specific power, and moderate thrust so that it can reflect their advantages in future manned and unmanned deep space exploration. In this paper, preliminary analysis has...
Prof.
Andrey Arzhannikov
(Novosibirsk State University)
, Prof.
Igor Shamanin
(National Research Tomsk Polytechnic Univ.)
18/11/2019, 16:45
The use of neutron sources based on linear traps and related technologies
Contributed Oral
The GDT-FNS medium-power hybrid thorium plant is an innovative nuclear fission-fusion facility constructively consisting of an assembly of hexagonal graphite blocks of a uniform design and a long magnetic trap for plasma confinement, which serves as a source of additional thermonuclear neutrons. The active zone of the analyzed hybrid plant consists of areas with different enrichment, contains...
Dr
Vladimir Shmakov
(All-Russian Research Center VNIITF)
18/11/2019, 17:05
The use of neutron sources based on linear traps and related technologies
Contributed Oral
To study three-dimensional neutron flux and heat generation fields in a reactor facility with a modified axial region operating in a subcritical mode with thermonuclear neutrons generated by an extended plasma neutron source, a computational model has been developed under utilizing a Serpent-Prizma program code.
The studies are conducted for a radially profiled reactor core consisting of...
Prof.
Igor Shamanin
(National Research Tomsk Polytechnic Univ.)
18/11/2019, 17:25
The use of neutron sources based on linear traps and related technologies
Contributed Oral
Results of our studies of the dynamics features of energy release in a hybrid thorium reactor facility with an extended neutron source based on a long magnetic trap are presented in the paper. In the studied configuration of the active zone, a high-temperature plasma column is formed in a pulse-periodic mode, and with certain combinations of the “thermonuclear combustion” pulse duration and...
Prof.
Olov Ågren
(Uppsala University)
19/11/2019, 09:00
Development of the basic technologies for the ALIANCE project
Plenary Presentation
A properly shaped quadrupolar mirror magnetic field, in combination with a controllable weak radial electric field, is predicted to force each guiding center to move close to its mean magnetic surface. A neoclassical increase of radial transport would then be practically eliminated. The radial electric field may be controlled by biased end plates placed at the end tank outside the confinement...
Dr
Vladimir Davydenko
(Budker Institue of Nuclear Physics)
19/11/2019, 09:45
Development of the basic technologies for the ALIANCE project
Contributed Oral
To build-up and sustain a population of high energy ions of hydrogen isotopes in the GDT-based neutron sources, injection of a steady-state powerful focused neutral beams with energies up to 100 keV is required. Problems arising at update of the high power NBIs developed at the Budker Institute with a duration of up to 2 s to the stationary operation mode are discussed in the report.
All the...
Dr
Alexander Krasnov
(BINP)
19/11/2019, 10:10
Development of the basic technologies for the ALIANCE project
Contributed Oral
Estimation shows that powerful Gas-Dynamic Trap operated for generating neutrons at continuous rate 1E18 1/s will release high particle flux (∼3E22 1/s of D/T mixture) out of confinement region. The vacuum vessel of the Gas-Dynamic Trap consists of central cylindrical confinement volume and two plasma expansion vessels. In order to sustain the adequate vacuum conditions in the expansion...
Dr
Dmitry Yakovlev
(BINP)
19/11/2019, 10:30
Development of the basic technologies for the ALIANCE project
Contributed Oral
Gas-dynamic multi-mirror trap (GDMT) is an ongoing project in development at Budker Institute of Nuclear Physics, which aims to demonstrate a leap in performance for linear axisymmetric magnetic plasma confinement systems and lay the groundwork for a full-scale development of fusion neutron sources (NS) based on gas-dynamic plasma confinement. As a multipurpose facility, GDMT is being designed...
Dr
Vadim Prikhodko
(Budker Institute of Nuclear Physics)
19/11/2019, 10:50
Development of the basic technologies for the ALIANCE project
Contributed Oral
The paper devoted to simulation of neutron source based on gas-dynamic trap concept. DOL code was used as a main tool for numerical calculations. Stability against Drift-Cyclotron Loss-Cone (DCLC) and Double Hump (DH) modes is estimated according to [I.A.Kotelnikov, I.S.Chernoshtanov, V.V.Prikhodko. Electrostatic instabilities in a mirror trap revisited. Physics of Plasmas v. 24, p. 122512 (2017)].
Dr
Alexei Beklemishev
(Budker Institute of Nuclear Physics)
19/11/2019, 14:30
Research activities aimed at magnification an energy efficiency of the ALIANCE project
Contributed Oral
There is a possibility of enhanced plasma confinement in axially symmetric linear traps due to significant modification of equilibrium close to the upper beta limit. In general this type of equilibrium is highly unstable to ballooning modes while its low internal magnetic field may cause non-adiabatic particle losses. However, under special conditions these problems can be probably overcome....
Mr
Mikhail Khristo
(Budker Institute of Nuclear Physics)
19/11/2019, 15:00
Research activities aimed at magnification an energy efficiency of the ALIANCE project
Contributed Oral
The recently proposed diamagnetic confinement (DC) mode (diamagnetic “bubble”) is designed to increase plasma parameters in open traps due to a significant increase in confinement time. We constructed a numerical stationary model of the diamagnetic “bubble” equilibrium in an axisymmetric open trap. The theoretical model is based on the Grad-Shafranov equilibrium equation and plasma transport...
Dr
Ivan Chernoshtanov
(Budker Institute of Nuclear Physics)
19/11/2019, 15:20
Research activities aimed at magnification an energy efficiency of the ALIANCE project
Contributed Oral
The collisionless dynamic of ions in the axisymmetric diamagnetic trap is discussed in the report. Smallness of magnetic field leads to non-conservation of magnetic moment of ions. It can results in chaotic movement and fast losses of ions. Two mechanisms allowing ions to confine in the trap unlimited time (if Coulomb collisions and instabilities are neglected): conservation of adiabatic...
Dr
Dmitriy Skovorodin
(BINP)
19/11/2019, 15:40
Research activities aimed at magnification an energy efficiency of the ALIANCE project
Contributed Oral
The formation of high beta plasma by means of neutral beam injection was studied. Energy balance was treated to obtain the scaling of threshold power of the beams required to form high beta equilibrium.
