Zobrazeno 1 - 10
of 70
pro vyhledávání: '"K.W. Ehlers"'
Autor:
K.W. Ehlers, K.N. Leung
Publikováno v:
Journal of Nuclear Materials. :694-697
Negative ions can be produced by a desorption process when energetic positive hydrogen ions impinge on the surface of reactor walls. The relative yields of different negative ions generated from various surface materials (such as Mo, Pt, Pd, Rh, Cu,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7a683b48d0413af9ec01adaeb643e7b0
https://doi.org/10.1016/0022-3115(84)90437-9
https://doi.org/10.1016/0022-3115(84)90437-9
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 248:282-286
The extraction of negative and positive hydrogen and deuterium ions from a reflex-type negative ion source has been investigated. Extracted positive and negative ion currents were measured as functions of the gas flow rate, the axial magnetic field,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::90921f73607f157406b67cdb1d8c4245
https://doi.org/10.1016/0168-9002(86)91009-0
https://doi.org/10.1016/0168-9002(86)91009-0
Autor:
K.W. Ehlers
Publikováno v:
Ehlers, K.W.(1983). NEGATIVE ION SOURCES FOR NEUTRAL BEAM SYSTEMS. Lawrence Berkeley National Laboratory: Lawrence Berkeley National Laboratory. Retrieved from: http://www.escholarship.org/uc/item/03k8g7tq
Ehlers, K.W.(1982). NEGATIVE ION SOURCES FOR NEUTRAL BEAM SYSTEMS. Lawrence Berkeley National Laboratory: Lawrence Berkeley National Laboratory. Retrieved from: http://www.escholarship.org/uc/item/7dz6c6kt
Ehlers, K.W.(1982). NEGATIVE ION SOURCES FOR NEUTRAL BEAM SYSTEMS. Lawrence Berkeley National Laboratory: Lawrence Berkeley National Laboratory. Retrieved from: http://www.escholarship.org/uc/item/7dz6c6kt
Neutral beams to heat the plasmas of controlled fusion experiments are generated by neutralizing the charge of positive ions after they have been focused and accelerated. The efficiency of this system decreases with ion velocity and for D+ the system
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3cad3617359172770207641eff676eed
https://doi.org/10.1116/1.572165
https://doi.org/10.1116/1.572165
Autor:
R. V. Pyle, J. W. Stearns, William S. Cooper, K.W. Ehlers, K. H. Berkner, W. B. Kunkel, W.R. Baker
Publikováno v:
Journal of Vacuum Science and Technology. 10:922-925
We describe a neutral beam source capable of producing pulsed deuterium beams of up to 15 A equivalent current at 20 keV for heating and sustaining fusion plasmas. It consists of a large-area plasma source, multiple-aperture accel-decel extractor, an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::31eac9667069107dd96a179d50fa61c4
https://doi.org/10.1116/1.1318516
https://doi.org/10.1116/1.1318516
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 21:215-217
A small microwave ion source fabricated from a quartz tube and enclosed externally by a cavity has been operated with different geometries and for various gases in a cw mode. This source has been used to generate oxygen ion beams with energy as low a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a9a2ac24bec6c72bc05ad0962064f028
https://doi.org/10.1016/0168-583x(87)90830-5
https://doi.org/10.1016/0168-583x(87)90830-5
An experimental investigation of low-energy ion beam guiding by a surface magnetic field generated by samarium cobalt magnets has been performed. It was found that magnets arranged in a multi-ring cusp configuration produced the best beam transport e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::054bb9ea09bad215328bd0fe4b600984
https://doi.org/10.2172/6691204
https://doi.org/10.2172/6691204
Autor:
J.W. Stearns, W. S. Cooper, W.B. Kunkel, K.W. Ehlers, K. H. Berkner, J.M. Haughian, R. V. Pyle, B.A. Prichard
The neutral-beam injection systems for the next generation of U.S. fusion experiments (TFTR, MX, Doublet III) have requirements that considerably exceed the present state of development. TFTR, for example, desires 20 MW of 120-keV deuterium atoms in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::52a8e1e86611c67ff5aade00a25c1610
https://doi.org/10.1016/b978-0-08-021369-9.50121-4
https://doi.org/10.1016/b978-0-08-021369-9.50121-4
Autor:
H. M. Owren, J.A. Paterson, V.L. Jacobson, K.W. Ehlers, William S. Cooper, Robert V. Pyle, Klaus H. Berkner
The program elements for the development of long-pulse deuterium accelerators for neutral-beam injection into fusion plasmas are described. Operational characteristics of a 4-grid, 80-kV, 40-A accelerator, designed for 30-sec operation but limited to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ba2f94ebdc69548085e6d8e6a9e87f59
https://doi.org/10.1016/b978-1-4832-8428-6.50118-1
https://doi.org/10.1016/b978-1-4832-8428-6.50118-1
Publikováno v:
AIP Conference Proceedings.
It is shown that the H− current extracted from a magnetically filtered multicusp source can be enhanced by optimizing the extraction chamber length, by employing the proper chamber wall material, by mixing hydrogen with xenon gases in the discharge
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c7a789a952905aeb1a6046431bf8a733
https://doi.org/10.1063/1.36541
https://doi.org/10.1063/1.36541