A microwave amplifier is planned that should be capable of peak power of up to several hundred megawatts at high efficiency as well as continuous power at lower levels. theconcept is based on transverse microwave modulation of a high voltage electron beam combined with a bending magnet to produce… More

This study involves design of a high current, heavy ion, recirculating, induction linear accelerator for inertial fusion. doe research programs in inertial fusion have shownthat the heavy ion driver method is a promising one in termsof ion deposition, pellet physics, ion beam transport, and other… More

Analysis is proposed of a variation of a recent innovative concept for generating high-power microwaves. the concept employs transverse modulation of a collimated, high-voltage electron beam combined with a bending magnet to produce axial bunching in an output cavity. a potential drawback of the… More

This project employs a two-part design study for high current, heavy ion, recirculating induction accelerators forinertial fusion involving: (1) modulator circuit design for recirculating accelerators, based particularly on recent advances in high power switch technology, and (2) optimum… More

This research aims to develop an improved source of multiply-charged ions for heavy-ion inertial fusion and other applications that require very high brightness. a conventional gas-discharge source is planned that depends on the combination of two additional novel features. first, the initial dense… More

A micro-pulse electron gun that appears capable of peak currents of about 10 ka with a micro-pulse length of several picoseconds (ps) occuring at frequencies of up to 10 ghz is being planned. the micro-pulses or bunches are produced by resonantly amplifying a current of secondary electrons in a… More

This project involves the analysis of a high harmonic, high efficiency microwave generator that appears to be suitable for applications such as a driver for the next generation of linear colliders. the concept employs a rotating "spiraling" beam to excite and amplify circularly polarized microware… More

High energy electron beam (1 to 12 mev) material processing offers a few important advantages over existing processing methods. energetic electrons enable processing in air without the need to locate the processed sample in vacuum. the higher energy electrons allow for treatment of thicker samples… More

A new technique, pulsed electron beam (peb) joining, will be applied to the problem of joining, low-loss ceramic materials used for windows in high frequency microwave devices to the metal vacuum envelope of the microwave device. the peb technique allows selective heating of the specimen to be… More

The objective of this proposal is to demonstrate the fabrication of ceramic core/composite skin structures using liquid infiltration techniques. The core will be porous alumina rods or tubes and the composite skin will be fabricated via infiltration with alumina sol of an aluminosilicate fabric… More

The primary goal of this research is the reduction in the number of cancer-free patients required to undergo biopsy because of equivocal mammographic findings. a second goal is the reduction of local recurrence in patients with breast cancer who are receiving breast-conserving treatment. these goals… More

A high current, micro-pulse electron source is planned for microwave frequency multiplying. the device utilizes a rotating transverse magnetic (tm110) cavity mode to generate a series of azimuthally distributed bunched electron pulses and is therefore similar to a "gatling gun". each azimuthal… More

The objective of this proposal is to demonstrate the feasibility of fabricating a smart material containing layers of piezoelectric transducers bonded to shape memory alloy layers. The critical problem in fabricating these smart materials is to produce a ceramic-metal bond that can endure the high… More

41291 November 19, 1996 FM Technologies, Inc. The window is currently the single most serious mode of failure of high power gyrotrons, a device for heating magnetic fusion plasmas. This project will develop a new technique for joining ceramic materials,… More

149 A High-Charge Electron Gun for Dielectric Type Wake-Field Accelerators--FM Technologies, Inc., 10529-B Braddock Road, Fairfax, VA 22032-2236; (703) 425-5111 Dr. Frederick M. Mako, Principal Investigator Dr. Frederick M. Mako, Business Official DOE Grant No. DE-FG02-97ER82375 Amount: … More

161 A 34 GHzHigh-Power Micro-Pulse Klystron--FM Technologies, Inc., 10529-B Braddock Road, Fairfax, VA 22032-2236; (703) 425-5111 Dr. Frederick M. Mako, Principal Investigator Dr. Frederick M. Mako, Business Official DOE Grant No. DE-FG02-97ER82374 Amount: $75,000 High-current pulses of… More

150 High Current Density High Repetition Rate Ferroelectric Cathode--FM Technologies, Inc., 10529-B Braddock Road, Fairfax, VA 22032-2236; (703) 425-5111 Dr. L.K. Len, Principal Investigator Dr. Frederick M. Mako, Business Official DOE Grant No. DE-FG02-97ER82376 Amount: … More

41292 November 19, 1996 FM Technologies, Inc. A radically new type of particle accelerator, a multiturn recirculating linac operating with space-charge dominated beam currents, has received considerable attention during the last few years. Even with… More

41299 November 19, 1996 FM Technologies, Inc. In the Relativistic Klystron Two-Beam Accelerator, which is currently under development, power from a low-energy, high-current, bunched beam is converted to micro-waves via the klystron mechanism and used to… More

41307 November 20, 1996 FM Technologies, Inc. High current electron pulses of short duration could be widely used in injector systems for electron accelerators, which have application in industry, medicine, and research. This project will develop a… More

161 A 34 GHzHigh-Power Micro-Pulse Klystron--FM Technologies, Inc., 10529-B Braddock Road, Fairfax, VA 22032-2236; (703) 425-5111 Dr. Frederick M. Mako, Principal Investigator Dr. Frederick M. Mako, Business Official DOE Grant No. DE-FG02-97ER82374 Amount: $75,000 High-current pulses of… More

150 High Current Density High Repetition Rate Ferroelectric Cathode--FM Technologies, Inc., 10529-B Braddock Road, Fairfax, VA 22032-2236; (703) 425-5111 Dr. L.K. Len, Principal Investigator Dr. Frederick M. Mako, Business Official DOE Grant No. DE-FG02-97ER82376 Amount: $75,000 Aside from… More

50489-98-I Electron Beam Surface Modification for Voltage Breakdown Suppression--FM Technologies, Inc., 10529-B Braddock Road, Fairfax, VA 22032-2236; (703) 425-5111 Dr. William Peter, Principal Investigator Dr. Frederick Mako, Business Official DOE Grant No. DE-FG02-98ER82582 Amount: … More

50483-98-I A Gated Micro-Pulse Electron Gun--FM Technologies, Inc., 10529-B Braddock Road, Fairfax, VA 22032-2236; (703) 425-5111 Dr. Frederick Mako, Principal Investigator Dr. Frederick Mako, Business Official DOE Grant No. DE-FG02-98ER82581 Amount: $75,000 Many applications in high energy… More

Not Available Head-mounted displays (HMDs) play a vital role in military and commercial simulation and training systems. They allow the user to interact with and navigate through virtual worlds before encountering them for real. This has proven to save lives and increase effectiveness in military… More

Not Available The Navy is improving its anti-air missile systems to defeat missiles and aircraft. Direct hits by one missile against another (body-to-body impact) is the primary defeat mechanism for some new concepts. Fast-running, analytical penetration and damage prediction methodologies are… More

65295 The next phase of the fusion energy program will require a ¿first wall¿ made of a neutron transparent material that has the strength and thermal characteristics to withstand the vigorous environment generated by the plasma. The SiCf/SiCm composite would be a candidate material if the… More

This Small Business Innovation Research (SBIR) Phase I project, A High Power, High Efficiency W-band Amplifier, is a new W-band, high-power microwave source. A point design based on a frequency of 11.424 gigaHertz (GHz) at the input cavity produces a one megawatt output at 91.4 GHz. It has a 51.5%… More

60957 Electrical breakdown is a critical factor limiting the voltage gradients that can be achieved in microwave cavities and accelerator structures, such as the 100 megawatt klystron being developed at the Stanford Linear Accelerator Center for the Next Linear Collider. Conventional… More

60957 Electrical breakdown is a critical factor limiting the voltage gradients that can be achieved in microwave cavities and accelerator structures, such as the 100 megawatt klystron being developed at the Stanford Linear Accelerator Center for the Next Linear Collider. Conventional… More

This Small Business Innovation Research (SBIR) Phase I project was motivated by the need for rapid in-line inspection of quality of nanometer-scale devices in a production environment. An efficient diagnostics instrument, like the proposed product, is a rudimentary requirement for improved business… More

DESCRIPTION (provided by applicant): Mapping the distribution of targeted chemical species in tissues is important in many areas of biology and medicine. These measurements require a highly sensitive methodology giving an accurate measure of the minute quantities of material in cells as well as the… More

72119S03- I In-vessel components for future fusion energy systems must withstand high levels of surface heat flux and neutron wall loads. SiC composite materials, especially SiCf/SiCm composites, have the desired characteristics for this application; however, they would be suitable for only a… More

This Small Business Innovation Research Phase I project entitled " Electron Beam Curing of Polymer Interlayer in Silicon Carbide Joints" will develop the technology to enable economical commercialization of silicon carbide components. Current joining techniques are too time consuming to be… More

DESCRIPTION (provided by applicant): Mapping the distribution of targeted chemical species in tissues is very important in many areas of biology and medicine. A useful methodology for these measurements would be one that is sensitive enough to give an accurate measure of the minute quantities of… More

79197S When muon beams are produced for high energy physics research, they initially have transverse and longitudinal emittances that are too large. Low frequency amplifiers (200 MHz is desired) at high power and a power gradient of 5 MW/m are required to ameliorate this problem This program will… More

78542S Intense, low emittance beams are required for muon colliders, storage rings, and neutrino factory applications. However, vacuum breakdown and high dark currents, which occur on copper and other electrode materials used in accelerating structures, impose limits on the performance. This… More

When muon beams are produced for high energy physics research, they initially have transverse and longitudinal emittances that are too large. Low frequency amplifiers (200 MHz is desired) at high power (10 to 30 Megawatt), with a power gradient of 5 MW/m, are required to ameliorate this problem … More

Silicon carbide triplex nuclear fuel cladding is an excellent ceramic structural material for use in high temperature thermal and fast-spectrum nuclear systems, including both current generation light water reactors and Generation 4 advanced reactors. Good mechanical and corrosion performance has… More

High-current pulses of electrons are widely used in injector systems for electron accelerators, both for industrial linacs as well as high-energy accelerators for linear colliders. Also, short-duration pulses are used for microwave generation in klystrons and related devices, for injectors to… More

The development of high-current, short-duration pulses of electrons has been a challenging problem for many years. High current pulses are widely used in injector systems for electron accelerators, both for industrial linacs as well as for high-energy accelerators for linear colliders. Also,… More

The chemical treatment of niobium (Nb) superconducting RF (SRF) cavities, such as those used in nuclear physics research, is an expensive and complex multistep process. Furthermore, after such treatments, the cavity¿s surfaces still have numerous bubbles and pits that result from welding. These… More

Chemical treatment such as buffered chemical polishing (BCP) or electropolishing (EP) followed by high pressure rinsing (HPR) of niobium (Nb) superconducting RF (SRF) cavities is expensive and complex multistep process. Furthermore, the cavity RF surfaces after the treatment still have numerous… More

The development of high-current, short-duration pulses of electrons has been a challenging problem for many years. High current pulses are widely used in injector systems for electron accelerators, both for industrial linacs as well as high-energy accelerators for linear colliders. Short-duration… More

The development of high-current, short-duration pulses of electrons has been a challenging problem for many years. High current pulses are widely used in injector systems for electron accelerators, both for industrial linacs as well as high-energy accelerators for linear colliders. Short-duration… More