Imploding plasma expeiments such as shiva are typically energized with large and expensive capacitor banks. inductive storage while substantially more compact suffers from switch efficiency and current multiplication circuity problems (see ref 1). the meat grinder is a generic circuit invented by… More

Electromagnetic guns, in common with many other dod applications,are in need of methods for transferring energy from an inductie energy reservior to an inductive load, i.e., the electromagnetic gun. such a device named the "meat grinder" (patent applied for) has been conceived, analyzed, and… More

We propose a novel microwave generation scheme utilizing light activated semiconductor switches (lass). the proprietary concept differs from all other lass based generation schemes in that it allowsthe semiconductor to operate at its maximum current density and electric field concurrently thereby… More

A light compact high efficiency extremely high power and bandwidth microwave source is proposed to disable electronic equipment with microwave emp. the concept is based on the use of the light activated semiconductor switches (lass) in very low impedance tem configurations allowing operation at the… More

Air force requirements for space power insist on low weight, reliability, and minimum collateral damage. explosive generators (mcg's) have long shelf life and reliability but their poor energy conversion efficiency results in an unacceptable amount of explosive which affects both the weight and the… More

Ecr proposes an extremely compact, light-weight and safe efi firing set. the circuit uses the hydraulic ram principle to charge a capacitor (a compact extreme high energy design described in a separate sbir, a88-51) in one step by open-circuiting an inductor. the concept does away with the dc-dc… More

An extremely high energy density capacitor for a fire set to drive exploding foil slapper detonator and other power conditioning equipment is proposed. the design integrates the high energy storage films (kureha/penwalt) with integrated circuit techniques (photoresist type dielectric relaxation… More

We are proposing a radical design for a solid armature for em guns which addresses the key limitations of solid armatures. the design uses the tamping of copper filaments with pyrolytic graphite in order to retain physical integrity and electrical properties to much higher temperatures. it also… More

This proposal describes a phased array antenna design radiating ten terrawatt from a nominal six meter aperture for short pulses at sea level, having 80 db sidelobe suppression, and steerable over 120 degrees and a 90 degree azimuth and elevation respectively.

The requirements for both inductive stores and pulse-shaping elements are extremely difficult to meet in a single switch design, particularly if it is to be implemented as a superconducting switch or a standard (or normal-conductor) switch. a reprated mega-amp opening switch is being developed to… More

An approach to significantly increase the energy density of capacitors in rep-rated applications is being investigated. this technique is applicable only to rep-rated applications since it utilizes the fixed charge and discharge duration characteristics needed for these applications to tailor the… More

Microlasers form a new class of miniaturized laser which are capable of producing pulses in the mw regime with subnanosecond duration, suitable for nonlinear processing such as parametric wavelength conversion. the major difficulties with microlasers lie in a) the laser material which should ideally… More

There is a considerable need for high power jitter-free switching in the sdio induction accelerator program. the high power switches currently available are mainly based on an electrical discharge in gas or vacuum, and therefore have certain limitations in pulse risetime, repetition rate, temporal… More

This proposal reviews the presently available solid state devices and shows that very high power microwave energy cannot be economicallyproduced by their use. the newly emerging light activated semiconductor switch (lass) is shown to be capable of producing the power levels of 100mw and above. these… More

The object of the phase i effort is to study the use of high power solid state photoconductive switches for use in high power microwave jammer systems. the study is to address the problem of disrupting anti-ship missile guidance systems. a second goal is to study the use of the power source in ultra… More

New developments in optical materials offer the potential of widely tunable, efficient sources operating in the blue-green regime for submarine laser communication. the proposed laser system involves the exploitation of two recent developments; the cr3+:lisralf6 material and high power visible laser… More

Due to the limited power which can be drawn from a single microwave source, a method to efficiently combine with power from multiple sources is required in many military applications. the power combining problem becomes difficult when the sources are not phase matched. ecr corporation has been… More