title: Design and initial results from a kilojoule level Dense Plasma Focus with hollow anode and cylindrically symmetric gas puff.
abstract: We have designed and built a Dense Plasma Focus (DPF) Z-pinch device using a kJ-level capacitor bank and a hollow anode, and fueled by a cylindrically symmetric gas puff. Using this device, we have measured peak deuteron beam energies of up to 400 keV at 0.8 kJ capacitor bank energy and pinch lengths of ∼6 mm, indicating accelerating fields greater than 50 MV/m. Neutron yields of on the order of 10(7) per shot were measured during deuterium operation. The cylindrical gas puff system permitted simultaneous operation of DPF with a radiofrequency quadrupole accelerator for beam-into-plasma experiments. This paper describes the machine design, the diagnostic systems, and our first results.
authors: Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550, USA.
authors: J L
authors: JL
authors: Ellsworth
authors: Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550, USA.
authors: S
authors: S
authors: Falabella
authors: Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550, USA.
authors: V
authors: V
authors: Tang
authors: Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550, USA.
authors: A
authors: A
authors: Schmidt
authors: Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550, USA.
authors: G
authors: G
authors: Guethlein
authors: Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550, USA.
authors: S
authors: S
authors: Hawkins
authors: Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550, USA.
authors: B
authors: B
authors: Rusnak