Download or read book Production of Neutral Beams From Negative Ion Beam Systems in the USSR written by Rand Corporation and published by . This book was released on 1985 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Production of Neutral Beams from Negative Ion Beam Systems in the USSR written by Nikita Wells and published by . This book was released on 1982 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report, a sequel to (The Development of High-Intensity Negative Ion Sources and Beams in the USSR), R-2816-ARPA, examines (1) Soviet research on the formation of intense, high-energy neutral particle beams and the associated investigation of charge exchange and beam stripping and (2) the deployment in the USSR of high-intensity negative ion sources of the direct-extraction and double-charge-exchange types, beam neutralizers, and neutral beam injectors, as reported in Soviet open-source technical publications. Based on open-source literature, the study finds no overt exoatmospheric particle-beam weapons in the USSR. The author suggest, however, that such a program may exist as a classified effort paralleling the nuclear fusion research described in the literature. Originator supplied keywords include: Thermonuclear reactions; Plasma temperatures; and Charged particles.

Download or read book The Development of High Intensity Negative Ion Sources and Beams in the USSR written by Rand Corporation and published by . This book was released on 1981 with total page 81 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report reviews Soviet R and D of (1) high-intensity negative ion sources and (2) transport and focusing of negative ion beams, using Soviet open literature of the past ten years, and correlates this data with data on Soviet institutes responsible for negative ion beam development. The Soviets are developing intense negative ion beams as the basis for creating neutral beams for injection into mirror traps and tokamaks, for inertial confinement fusion, and possibly for exoatmospheric beam weapon applications. The report focuses specifically on surface-plasma-type ion sources, which were first developed in the USSR and which show great promise for creating beams of high intensity, high brightness, and low emittance. Mechanisms for optimum negative ion beam transport are also discussed.

Download or read book Production and Neutralization of Negative Ion Beams written by Ady Hershcovitch and published by American Institute of Physics. This book was released on 1990 with total page 848 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Production of Neutral Beams from Negative Ion Beam Systems in the USSR written by Nikita Wells and published by . This book was released on 1982 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report, a sequel to (The Development of High-Intensity Negative Ion Sources and Beams in the USSR), R-2816-ARPA, examines (1) Soviet research on the formation of intense, high-energy neutral particle beams and the associated investigation of charge exchange and beam stripping and (2) the deployment in the USSR of high-intensity negative ion sources of the direct-extraction and double-charge-exchange types, beam neutralizers, and neutral beam injectors, as reported in Soviet open-source technical publications. Based on open-source literature, the study finds no overt exoatmospheric particle-beam weapons in the USSR. The author suggest, however, that such a program may exist as a classified effort paralleling the nuclear fusion research described in the literature. Originator supplied keywords include: Thermonuclear reactions; Plasma temperatures; and Charged particles.

Download or read book The Development of High intensity Negative Ion Sources and Beams in the USSR written by Nikita Wells and published by . This book was released on 1981 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Negative Ion Based Neutral Beams for Plasma Heating written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Neutral beam systems based on negative ions have been considered because of a high expected power efficiency. Methods for the production, acceleration and neutralization of negative ions will be reviewed and possibilities for an application in neutral beam lines explored.

Download or read book Neutral Beam Production Using Negative Ions written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Techniques for producing intense negative ion beams are discussed. These beams are required for intense neutral beam development at energies greater than 150 keV. Handling, acceleration, and stripping of negative ion beams are described.

Download or read book Summary of the Status of Negative ion based Neutral Beams written by and published by . This book was released on 1983 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Negative-ion-based neutral beam systems can perform multiple functions for fusion reactors, such as heating, current drive in tokamak reactors, and establishing and maintaining potential barriers in tandem mirror reactors. Practical systems operating continuously at the 200 keV, 1 MW level can be built using present-day technology. Ion sources have been demonstrated that produce D− beams with

Download or read book Comparison of Methods for the Production of Neutral Beams written by L. D. Stewart and published by . This book was released on 1977 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Energy Research Abstracts written by and published by . This book was released on 1990 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fusion Energy Update written by and published by . This book was released on 1979 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Negative Ion Beam Processes written by and published by . This book was released on 1975 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Los Alamos Scientific Laboratory fiscal year 1975 work on production of intense, very bright, negative hydrogen (H−), ion beams and conversion of a high-energy (a few hundred MeV) negative beam into a neutral beam are described. The ion source work has used a cesium charge exchange source that has produced H− ion beams greater than or equal to 10 mA (about a factor of 10 greater than those available 1 yr ago) with a brightness of 1.4 x 109 A/m2- rad2 (about 18 times brighter than before). The high-energy, neutral beam production investigations have included measurements of the 800-MeV H−- stripping cross section in hydrogen gas (sigma10, tentatively 4 x 10$sup - 19$ cm2), 3- to 6-MeV H−-stripping cross sections in a hydrogen plasma (sigma10, tentatively 2 to 4 x 10−16 cm2), and the small-angle scattering that results from stripping an 800-MeV H− ion beam to a neutral (H°) beam in hydrogen gas. These last measurements were interrupted by the Los Alamos Meson Physics Facility shutdown in December 1974, but should be completed early in fiscal year 1976 when the accelerator resumes operation. Small-angle scattering calculations have included hydrogen gas- stripping, plasma-stripping, and photodetachment. Calculations indicate that the root mean square angular spread of a 390-MeV negative triton (T−) beam stripped in a plasma stripper may be as low as 0.7 $mu$rad. (auth).

Download or read book Efficient Production of Neutral Beams by Photodetachment of Negative Ions written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A neutral fraction approaching 97 percent can be attained by photodetachment of negative ions if the photon density and thickness are adequate. This high efficiency of neutralization is desirable not only because of the improvement in power balance and power efficiency but also because of the increase in the useable beam current per module. Only modest improvements in commercial solid-state lasers are required to fulfill the requirements of a photodetachment cell for a fusion reactor. The wavelength of 0.85 x 10−4 cm is suitable with respect to the photodetachment cross section, the performance characteristics of present-day lasers, and the high reflectivity of the mirrors required for the optical cavity. Improvements may be possible by using resonances in the near ultraviolet region to enhance the photodetachment cross section. Three reactor-design studies were conducted and it was found that the required laser power is only economical for large injection systems in which beams of several hundred amperes are passed through a single optical cavity for photodetachment. The method is not economical for smaller systems.

Download or read book Development of Negative Ion Based Neutral Beam Systems in the USA written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper discusses the progress of a double electron capture system under development at the Lawrence Laboratories, a direct extraction system based on negative ions from magnetron and Penning sources at Brookhaven National Laboratory and the negative ion production by laser irradiation of alkali hydride or deuteride targets pursued at TRW Inc.

Download or read book LBL Research Review written by and published by . This book was released on 1991 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: