Maxwell Energy Products announced today that it has won two sole source contracts to supply 2690 each of its Model 35309 and 1396 each of its Model 35349 plastic case high voltage capacitors for use in the second phase of the Dual Axis Radiographic Hydrodynamics Test (DARHT) facility at Los Alamos. The capacitors will be integrated into modulators that power the induction electron accelerator and the electron injector.

The particular model of capacitor used in the Pulse Forming Network (PFN) within each modulator is based on a standard product line, TYPE PD/PM. While the basic "double-ended plastic case" design has been offered by Maxwell for many years, recent improvements to the dielectric design have resulted in increased life and reliability. These improvements allowed Maxwell to meet the critical reliability requirements of the large DARHT system.

Model 35309 is a 0.05 uF 100 kV rating in a 4.0 x 8.0 x 16.0 inch (102 x 203 x 406 mm) case. Model 35349 is rated at 0.073 uF 50 kV and is in a 2.3 x 5.9 x 10.7 inch (58 x 150 x 272 mm) case.

A list of standard ratings for Type PD/PM and other styles of high voltage capacitor are available on the company's website: http://www.gaep.com.

Figure 1 shows the DARHT facility and Figure 2 shows typical TYPE PD/PM capacitors.

Figure 1. Artist's conception of the DARHT facility being built at LANL
 

Figure 2. Typical Type PD/PM Capacitors for use in Pulse Forming Networks,
Modulators, Lasers, and general-purpose applications.

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