The Sandia National Laboratories Z machine is the world’s most powerful and efficient laboratory radiation source, capable of producing over 2 MJ and 300 TW of x-rays. For primary energy storage, Z uses thirty-six separate Marx banks, each comprised of sixty 2.6 µF capacitors rated for up to 100 kV. The total energy storage on Z is 25 MJ at maximum operating voltage (95 kV). Regular...
PIN diodes are fabricated using high thermal budgets to form deep P+ anode and N+ cathode regions by either diffusion or ion-implantation. These doping methods come with significant difficulties the in fabrication process such as: doping fluctuation, doping activation and costly equipment. To overcome these issues related to fabrication and doping profile, a new approach called charge plasma...
Explosive Emission Cathodes (EEC), used for the generation of relativistic electron beams, require short rise-time high voltage pulses in order to reduce the extraction of off-energy electrons. To this end a risetime sharpening circuit has been developed at the Los Alamos National Laboratory. The circuit consists of a ~7.8nF water filled peaking capacitor with an integrated self-breakdown...
A classical insulation problem occurring in many pulsed power and high voltage
applications is to feed high-voltage-carrying conductors through a conductive wall
at low (or even ground) potential. An ongoing development for a kicker
application utilizes a pulse forming line (PFL) with a charging voltage of up to
80kV. Since both cable ends must be connected within two oil tanks,...
Dry-type air-core reactor used as AC filter reactors is one of the main noise sources in HVDC converter stations. The research on the vibration characteristics of the dry-type air-core reactor is of great significance for the design of noise reduction measures. Based on the assumption of linear vibration system, IEC 60076-6:2007 suggests to use sum frequency, difference frequency and double...
The transformer winding will flow a larger impact current in the event of an external short circuit, causing strong vibration, resulting in winding loose and deformation. The loss of short-circuit withstand capability of winding is not a one-time process, but accumulated over the years. As the mechanical condition of winding deteriorates, the safety and stability of transformers are affected....
