Zobrazeno 1 - 10
of 16
pro vyhledávání: '"M. C. Vella"'
Autor:
D. L. Hurley, R. W. Odom, M. C. Vella, Eric B. Norman, H. Manini, A. R. Smith, R. J. McDonald
Publikováno v:
Journal of The Electrochemical Society. 143:339-346
Samples of silicon wafers, some implanted with zinc, some with memory circuits fabricated on them, an some with oxide coatings were activated with neutrons and analyzed for trace element impurities with low-background germanium gamma-ray spectrometer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::424253dfbb2598530b2dd3dcdfc4dff6
https://doi.org/10.1149/1.1836433
https://doi.org/10.1149/1.1836433
Autor:
Russell Wells, W. S. Cooper, Takashi Inoue, G. J. de Vries, G. D. Ackerman, W. F. Steele, J.W. Kwan, Yoshikazu Okumura, M. Mizuno, M. C. Vella, C. F. Chan, M. E. Stuart
Publikováno v:
Review of Scientific Instruments. 66:3864-3868
Neutral beams for the next generation tokamaks will be based on multiampere negative ion beams with a beam energy of about 1.0 MeV and pulse lengths of a thousand seconds. High intensity dc beams at these levels of beam energy will require extensive
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::940ccf7bfa2b54c45ac6b1e67e99ce7d
https://doi.org/10.1063/1.1145450
https://doi.org/10.1063/1.1145450
Autor:
Yoshihiro Ohara, Yoshikazu Okumura, Takashi Inoue, W. S. Cooper, K. Miyamoto, C. F. Chan, J.W. Kwan, M. Mizuno, M. C. Vella, G. D. Ackerman
Publikováno v:
Review of Scientific Instruments. 66:3859-3863
The high power ion beams used in the next generation thermonuclear fusion reactors require high current negative ion beams accelerated to high energy, with high efficiency. One way to meet these requirements is to merge multiple low current density H
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6deb8146388495a309ddd781629b370a
https://doi.org/10.1063/1.1145449
https://doi.org/10.1063/1.1145449
Autor:
Chun Fai Chan, M. C. Vella
Publikováno v:
Plasma Devices and Operations. 3:247-256
A self-consistent 2D particie codfe has been used to develop a design for a merging beamlet pre-ac-celerator. On the basis of this design, an experiment is planned to merge 200 mA of multi-beamlet H at 100 keV into a single channel electrostatic quad
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::486550fe59985d2d66fa7662e2e51bdb
https://doi.org/10.1080/10519999408225555
https://doi.org/10.1080/10519999408225555
Autor:
O. A. Anderson, W.B. Kunkel, C.A. Matuk, J.W. Kwan, L.L. Reginato, P. Purgalis, G. J. de Vries, L. Soroka, Russell Wells, M. C. Vella, W. S. Cooper
Publikováno v:
Proceedings of the 1989 IEEE Particle Accelerator Conference, . 'Accelerator Science and Technology.
The authors describe a constant-current variable-voltage (CCVV) accelerator, intended to operate in the megaelectronvolt energy range but tunable down to a few percent of magnetoelectronvolt without loss of beam current. They present experimental res
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b1d0f63149a9faed3eaf7b06db7d6786
https://doi.org/10.1109/pac.1989.73369
https://doi.org/10.1109/pac.1989.73369
Autor:
M. C. Vella, R. E. Aamodt
Publikováno v:
Physical Review Letters. 39:1273-1276
The kinetic treatment of the ponderomotive force concept is found from nonresonant quasilinear theory for waves with spatially dependent amplitude. In general, the ponderomotive effect appears as a velocity-space diffusion term, not just as a force.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6531068b20ce3d3eff470056c0fd01e3
https://doi.org/10.1103/physrevlett.39.1273
https://doi.org/10.1103/physrevlett.39.1273
Autor:
M. C. Vella, R. P. Wells, P. A. Pincosy, P. D. Weber, Robert V. Pyle, J. A. Paterson, H. M. Owren
Publikováno v:
Review of Scientific Instruments. 57:2714-2719
The 10×40‐cm long pulse neutral beam source developed at Lawrence Berkeley Laboratory has been selected as the prototype for the design of the U. S. common long pulse source to be used on tokamak fusion test reactor (TFTR), Doublet‐III, and mirr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::469dd7d583c1d259137b43f16a70ecea
https://doi.org/10.1063/1.1139082
https://doi.org/10.1063/1.1139082
Publikováno v:
Review of Scientific Instruments. 59:2357-2365
The U.S. magnetic fusion energy program has developed a single design long pulse neutral beam source for TFTR, MFTF-B, and DIII-D. The arc is a very compact axial magnetic line cusp. The accelerator is an actively cooled tetrode with water cooled gri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e0ee90502898a3eda274ce7cbfd5bda1
https://doi.org/10.1063/1.1139961
https://doi.org/10.1063/1.1139961
Autor:
W. F. DiVergilio, M. C. Vella, R. V. Pyle, P. A. Pincosy, D. Kippenhan, K. W. Ehlers, V. V. Fosnight
Publikováno v:
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 3:1218-1221
The development of low frequency (1–2 MHz) rf plasma generators for high power neutral beam applications is summarized. Immersed couplers from one to three turns were used. Acceptable plasma profiles, ≤15% max/min, were obtained in a variety of f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9bf0a3b0e2d8a5dfb21680cb3dcba04
https://doi.org/10.1116/1.573067
https://doi.org/10.1116/1.573067
Publikováno v:
Plasma Physics. 22:843-849
Gaussian HeII 4686 AA spectral lines having full widths at half maximum of over 2 AA have been observed in the Tormac plasmas. Interpretation of these widths as due to Doppler broadening would give ion temperatures of >100 eV, in contradiction with o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::93fdb93b5fa56707fd2093d24cf01244
https://doi.org/10.1088/0032-1028/22/8/007
https://doi.org/10.1088/0032-1028/22/8/007