A microwave ion source has been designed and constructed for use with a sealed-tube, high-yield neutron generator. When operated with a tritium-deuterium gas mixture the generator will be capable of producing 5 · 10 n/s in non-proliferation applications. Microwave ion sources are well suited for such a device because they can produce high extracted beam currents with a high atomic fraction at l...

Current paper presents a hierarchical test pattern generation system that uses register-transfer level VHDL and gate-level EDIF netlist descriptions as inputs. The system includes appropriate interfaces to synthesize Decision Diagram (DD) models, a DD based test pattern generator and a fault simulator to evaluate the quality of the generated tests. In the paper, the structure of the system is p...

Radio-frequency (RF) driven ion sources are being developed in Lawrence Berkeley National Laboratory (LBNL) for sealed-accelerator-tube neutron generator application. By using a 5-cm-diameter RF-driven multicusp source H yields over 95% have been achieved. These experimental findings will enable one to develop compact neutron generators based on the D-D or D-T fusion reactions. In this new neut...

Considering the effects of charge screening, we propose a new numerical recipe within framework Thomas-Fermi approximation, where properties nuclear matter throughout vast density range can be obtained self-consistently. Assuming spherical and cylindrical approximations for Wigner-Seitz cell, typical structures (droplet, rod, slab, tube, bubble, uniform) are observed. We then investigate EOSs m...

Calibration neutron fields have been developed at KAERI (Korea Atomic Energy Research Institute) to study the responses of commonly used neutron survey meters in the presence of fast neutrons of energy around 10 MeV. The neutron fields were produced by using neutrons from the (241)Am-Be sources held in a graphite pile and a DT neutron generator. The spectral details and the ambient dose equival...