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This paper describes a low-noise, low-power and lowvoltage analog front-end amplifier integrated in implantable electronic devices and dedicated to very low amplitude signal acquisition. Low noise and low DC offset are obtained by means of Chopper Stabilization (CHS) technique. In addition, due to adding a rail to rail input stage, low power supply (1.8V)(More)
Testing blanket concepts in the integrated fusion environment is one of the principal objectives of ITER. Blanket test modules will be inserted in ITER from Day 1 of its operation and will provide the first experimental data on the feasibility of the D-T cycle for fusion. With the US rejoining ITER, the US community has decided to have strong participation(More)
An attractive blanket concept for the fusion reactor is the dual coolant Pb–17Li liquid (DCLL) breeder design. Reduced activation ferritic steel (RAFS) is used as the structural material. Helium is used to cool the first wall and blanket structure, and the self-cooled breeder Pb–17Li is circulated for power conversion and for tritium breeding. A SiCf/SiC(More)
General Atomics, P.O. Box 85608, San Diego, California 92186-5608, Clement.Wong@gat.com 1Fusion Nuclear Technology Consulting, Linkenheim, Germany 2University of Wisconsin, Madison, Wisconsin 3University of California, Los Angeles, California 4Argonne National Laboratory, Argonne, Illinois 5INEEL, Idaho Falls, Idaho 6University of California, San Diego,(More)
Hardware acceleration in high performance computing context is of growing interest, particularly in the field of Monte Carlo methods where the resort to FPGA technology enhances execution speed by several orders. For this purpose, a particular attention has been given lately to hardware-based non-uniform random variate generators. In this paper we present(More)
During the D–T operation of the International Thermonuclear Experimental Reactor (ITER), the dose inside ITER building is attributed to neutrons and gamma-rays streaming from various openings in the machine, whereas after shutdown, it is solely due to the decay gammas from activated components inside the building. In the present study, two cases of(More)
Abstract: In this paper, a new design for a voltagecontrolled ring oscillator (VCO) is presented. Implemented in 0.8 μm High-Voltage CMOS/DMOS technology provided by DALSA semiconductor with 5V power supply, this circuit uses relatively devices dimensions and low stages number to operate at low frequency. The new VCO combines three control methods to vary(More)
The design of an ultra low-power CMOS chopper stabilized front-end suitable for a fully implantable cortical data acquisition system (CDAS) is presented The proposed low-power front-end improves recording quality and is area efficient. It removes low frequency noise and achieves submicrovolt input offset. The key to its performances is chopper modulation(More)
There is no practical external source of tritium for fusion energy development beyond ITER and all subsequent fusion systems have to breed their own tritium. To ensure tritium self-sufficiency, the calculated achievable tritium breeding ratio (TBR) should be equal to or greater than the required TBR. The potential of achieving tritium self-sufficiency(More)