Conveners
8.5 Power Supplies and Modulators I
- David E. Anderson (Oak Ridge National Laboratory)
Pulsed Resonant Charging Power Supply for the Spallation Neutron Source
Extraction Kicker PFN System
R. Saethre, B. Morris, Oak Ridge National Laboratory
The Spallation Neutron Source (SNS) at the Oak Ridge National Laboratory (ORNL) uses fourteen pulsed modulators in the extraction system to deflect the proton beam from the accumulation ring to the target. The SNS is executing the Proton...
As pulse modulators are increasingly built more compact, so do the ancillary supporting electronics systems have to decrease in size. The trigger system presented, utilizes a 10kV 10kA capable solid state switch to conduct energy through a ferrite loaded air core transformer. The final output is capable of reaching 60-70kV in less than 100nS, with extremely low jitter with reliable (or...
This paper describes the design of the solid-state Marx modulator with fast-rising time and short pulse width for various applications such as accelerator and plasma application. By stacking of SiC-MOSFETs, the designed specifications are satisfied as 10 kV, under 50 ns of pulse width, under 15 ns of rising time. The designed circuit consists of the ON switches for applying pulse to the load...
Stangenes Industries has designed and delivered a 5U 19” rackmount modulator for driving high impedance capacitive loads such as an electron gun. An FPGA controls the delays between successive triggering of 18 Marx stages to match the modulator output to loads of various impedances. With a single HV supply providing a fixed charge voltage the modulator can generate output voltages from 5KV to...
In this study, low level of boron nitride (BN) nanosheets filler loading (5wt.%, 10wt.%) were incorporated in epoxy resin matrix to improve thermal conductivity of the nanocomposites by performing the alignment of BN nanosheets. The orientation of BN nanosheets in epoxy resin matrix are controlled by applying pulsed electric field during the curing process of epoxy resin/BN nanocomposites. The...
