Development of Convergent D-D Fusion Neutron Generator with Large Pulse Current

Ohnishi, Masami; Osawa, Haruki; Furukawa, Tomoya; Suma, Takashi

doi:10.13182/fst07-a1644

Cited by 9 publications

(2 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This is because the collision frequency between the ions and the background neutrals increases. The difference of the energy dispersion indicates that more effective acceleration of 8 the ion is achieved at lower background pressure.…”

Section: 2mentioning

confidence: 99%

“…In order to improve the fusion reaction rate, following two ways have been investigated by several research groups. One is to increase the ion density by increasing the input current [2,7,8]. The other is to increase the ion energy by reducing the background gas pressure which reduces the energy loss due to collisions with background neutrals [9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Particle-in-cell simulation of magnetic-assisted electrostatic confinement device

Tomiyasu

Yokoyama

Watanabe

et al. 2010

Fusion Engineering and Design

View full text Add to dashboard Cite

In order to enhance the fusion reaction rate in Inertial Electrostatic Confinement devices, it is necessary to increase the ion density with low cathode current and low background pressure. In order to accomplish the requirement, the authors suggest Magnetic-assisted Electrostatic Confinement (MEC) scheme. The MEC relies on controlling the ion motion by applying an axial magnetic field to a system with cylindrical electrodes. In order to clarify the fundamental performances of the MEC device, Particle-in-Cell simulation was carried out. By reducing the background pressure, the ion confinement was improved resulting in the increase of the ion density. However, the ion density saturated due to space charge limitation. The estimated fusion reaction rate was about 6 10 5 × 1/s/m when the cathode voltage was -100 kV, the magnetic field was 200 mT, and the cathode current was 100 mA/m. The reaction rate, however, is expected to become higher since the ion density limitation is moderated by the electron which is not considered in the present analysis.

show abstract

Section: 2mentioning

confidence: 99%