Zobrazeno 1 - 10
of 118
pro vyhledávání: '"R.R. Stevens"'
Autor:
Alvin S. Bolt, Thomas Zaugg, David S. Warren, Joseph D. Sherman, J. David Schneider, Michael E. Thuot, M. Stettler, Debora M. Kerstiens, Jack E. Boers, R.R. Stevens, Terry L. Figueroa, H. Vernon Smith, Lash Hansborough, Adrian A. Arvin
Publikováno v:
Review of Scientific Instruments. 73:917-921
A dc and pulsed-mode 75 keV proton injector has been developed and is used in characterization of a continuous-wave 6.7 MeV, 100 mA radio-frequency quadrupole (RFQ). The injector is used frequently at the full RFQ design power (100 mA, 6.7 MeV) where
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::edb2ec58f6d983b03c5bf36de551bc7d
https://doi.org/10.1063/1.1427671
https://doi.org/10.1063/1.1427671
Autor:
Terry L. Figueroa, Alvin S. Bolt, E. A. Meyer, Jack E. Boers, Thomas Zaugg, Michael E. Thuot, M. Stettler, Thomas W. Hardek, Joseph D. Sherman, Gerald O. Bolme, Adrian A. Arvin, J. David Schneider, James H. Kamperschroer, H. Vernon Smith, Mitchell C. Richards, R.R. Stevens, Lash Hansborough, Debora M. Kerstiens, Patrick H. Hegler
Publikováno v:
Review of Scientific Instruments. 71:767-770
A 50 keV proton injector utilizing a dc microwave source has been used to operate a 1.25 MeV continuous wave (cw) radio-frequency quadrupole (RFQ) accelerator. RFQ injection places stringent requirements on beam properties including centroid control,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1dd87abc9e5c8facfa661919cb81cbda
https://doi.org/10.1063/1.1150288
https://doi.org/10.1063/1.1150288
Autor:
Joseph D. Sherman, Lash Hansborough, Michael E. Thuot, R.R. Stevens, J. David Schneider, Andrew Arvin, H. Vernon Smith, R. Ferdinand, David Hodgkins, M. Stettler, Thomas Zaugg, E. A. Meyer
Publikováno v:
Review of Scientific Instruments. 69:1003-1008
A 110 mA, 75 keV dc proton injector is being developed at Los Alamos. A microwave proton source is coupled to a two solenoid, space-charge neutralized, low-energy beam transport (LEBT) system. The ion source produces 110 mA proton current at 75 keV u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d8151d6087662be46ff2076a62528f2
https://doi.org/10.1063/1.1148706
https://doi.org/10.1063/1.1148706
Publikováno v:
Canadian Journal of Plant Pathology. 18:419-423
(1996). Fusarium proliferation: a new causal agent of black point in wheat. Canadian Journal of Plant Pathology: Vol. 18, No. 4, pp. 419-423.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a1b072d76ae9d23b544e33d67b612226
https://doi.org/10.1080/07060669609500598
https://doi.org/10.1080/07060669609500598
Autor:
D. Hodgkins, J.D. Schneider, R.R. Stevens, G. McMichael, K. R. Lykke, D. Spence, Joseph D. Sherman
Publikováno v:
Review of Scientific Instruments. 67:1642-1645
This article demonstrates a new technique to significantly enhance the proton fraction of an ion beam extracted from a plasma ion source. We employ a magnetically confined microwave driven source, though the technique is not source specific and can p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d661668c3d97ea9ab41aa0edd4353e7
https://doi.org/10.1063/1.1146908
https://doi.org/10.1063/1.1146908
Autor:
Thomas Zaugg, D.P. Sandoval, D. Gilpatrick, E. A. Meyer, J. Power, D. Hodgkins, Joseph D. Sherman, Gerald O. Bolme, C. Rose, G. McMichael, T. Taylor, P. Lara, Lash Hansborough, R.R. Stevens, R. Wright, M. Stettler, P. Schafstall, D. Spence, Michael E. Thuot, Carl Geisik, J.D. Schneider
Publikováno v:
Review of Scientific Instruments. 67:1296-1301
Powerful cw proton linear accelerators (100 mA at 0.5–1.0 GeV) are being proposed for spallation neutron‐source applications. A 75‐keV, 110‐mA dc proton injector using a microwave ion source is being tested for these applications. It has achi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::373b59d0037661874e33288cd4428a3e
https://doi.org/10.1063/1.1146701
https://doi.org/10.1063/1.1146701
Publikováno v:
Review of Scientific Instruments. 66:1024-1027
Accumulator rings proposed for use in high‐intensity spallation‐neutron sources require a chopped beam with ∼100‐ns‐wide particle‐free gaps at 1–2 MHz rates, with fall and rise times ≤20 ns. Chopping the beam directly in the ion sourc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d00dbc7cc8e926acb3f589af5e98a9d
https://doi.org/10.1063/1.1146039
https://doi.org/10.1063/1.1146039
Autor:
R.R. Stevens, Claudio G. Parazzoli, R.E. Rodenburg, Bruce E. Carlsten, D.C. Quimby, D. Pistoresi, D.A. Byrd, C.J. Elliott, Mark J. Schmitt
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 331:212-217
The major factors impacting the design of a high power 10 kW FEL oscillator are mirror thermal distortion and electron and optical beam loss in the wiggler. Thermal absorption directly impacts the determination of the optimum wiggler gap. Choice of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fdad2fac6329c455f99a044473454350
https://doi.org/10.1016/0168-9002(93)90045-j
https://doi.org/10.1016/0168-9002(93)90045-j