[PDF] Top 20 ICRF Heating in Helical Reactor

... wavelength is only 0.5 m even at the start point, which is much smaller than the plasma minor radius (≈2 m), therefore ray tracing is applicable. The ray bounced at a R-cutoff in the plasma edge. Figure 4-a shows the ... See full document

... For monitoring plasmas and the plasma-wall interac- tions in long pulse discharges, totally about thirty video rate (30 fps) visible CCD cameras are set in some view- ports. Additionally, three visible fast framing ... See full document

... In cosmic plasmas, an astrophysical jet from a fast ro- tating star is one of the most interesting phenomena [1]. A helical structure is often observed in the jet, and the physical mechanism of the jet formation ... See full document

... a heating method in fusion devices, electron cy- clotron heating (ECH) has a great advantage; that is, the electron cyclotron (EC) wave antennas can be installed apart from the plasma ...a helical ... See full document

... that of FFHR-2m2. Therefore, additional analysis was conducted by related task groups to confirm the validity of this design point. Radial-build design was conducted in order to utilize this limited space to the fullest ... See full document

... joule heating at the joint sections could be accepted more easily with elevated temperature opera- tions compared to the case with low-temperature super- conductors ... See full document

... cartridge-type helical blanket system called the CARDISTRY-B has been proposed for the helical fusion reactor ...the helical divertor, and ...injection heating are newly equipped ... See full document

... demonstrated in present numerical simulations. On this purpose the particle code based on test-particle ap- proach is developed. This code solves guiding center equations for 3 He ions in toroidal magnetic field ... See full document

... a helical-axis ...(ICRF) heating plasmas have been made for understanding global energy confinement in connection with the international stellarator scaling law (ISS04), spontaneous confinement ... See full document

... favorable heating efficiency with low impu- rity production in the LHD, and a long discharge, with a duration time of 54 ...cyclotron heating (ECH) support [5]. One-pair superconducting helical coils ... See full document

... (ICRF) heating on the large helical device is characterized by high power up to 12 MW and steady state operation for 30 ...cyclotron heating has been established as one of the heating ... See full document

... type helical fusion reactor can be ignited by high-current Joule ...a helical system is analyzed ...the helical coil current is MHD ...LHD-type helical reactor is ... See full document

... minority heating in Heliotron J with special emphasis on the effect of the toroidal ripple (bumpiness) of the magnetic field ...by ICRF minority heating, a high bumpiness configuration is found to be ... See full document

... Reactor temperature is a key factor that affects its performance since all gasification reactions, whether endo- thermic or exothermic, are temperature sensitive. Figure 2 illustrates the temperature profile at ... See full document

... force. Helical coil configuration is very effective for heat exchange and chemical reactors because of their large heat transfer area in a small space with high heat transfer ...of helical coil type heat ... See full document

... a helical fusion reactor was ...Large Helical Device ...the helical divertor plates is significantly reduced when the limiter is inserted into the ergodic layer even without ... See full document

... High-harmonic heating of the electron cyclotron res- onance (ECR) is an attractive method to extend the heat- ing regime of plasma parameters by alleviating the den- sity limitation due to some cuto ff s of EC wave ... See full document

... the heating phase in discharge 90348 with ICRF ...central heating provided by ICRF ...on ICRF heating for core impurity control, see ... See full document

... The second round of the FFHR-d1 design activity is the 3D structural design of components. The supercon- ducting magnet system of FFHR-d1 comprises one pair of HCs and two sets of VFCs (the LHD has three sets of VFCs). ... See full document

... Contents Volume I Introduction, Background and Report Summary Technical Achievements during 1990 - Torus Systems Power Supplies and Magnet Systems Neutral Beam Heating System ICRF Heatin[r] ... See full document