Zobrazeno 1 - 10
of 16
pro vyhledávání: '"J. David Schneider"'
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:
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
Publikováno v:
Review of Scientific Instruments. 62:2307-2313
Using optical spectroscopy we study the spatial and temporal distributions of the Hα, Cs i(4555 A), Cs ii(4604 A), and Mo i(3903 A) emission lines in a Penning surface‐plasma source (SPS). A diagnostic slit exposes the entire SPS discharge gap eit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::87d880a090ea022cd92337f3c8655276
https://doi.org/10.1063/1.1142290
https://doi.org/10.1063/1.1142290
Autor:
E. A. Meyer, Lash Hansborough, Joseph D. Sherman, R.R. Stevens, Thomas Zaugg, Dave Hodgkins, Michael E. Thuot, J. David Schneider, Andrew Arvin
Publikováno v:
Review of Scientific Instruments. 69:1017-1019
A reliable high-voltage (HV) column has been developed for dc proton injectors with applications to high-intensity cw linacs. The HV column is coupled with a microwave-driven plasma generator to produce a 75-keV, 110-mA dc proton beam. Typical proton
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::38df21ffdce64b681f7bb594f490aff1
https://doi.org/10.1063/1.1148707
https://doi.org/10.1063/1.1148707
Publikováno v:
Review of Scientific Instruments. 65:1176-1178
After developing a pulsed 8X source for H− beams, we are now testing a cooled, dc version. The design dc power density on the cathode surface is 900 W/cm2, much higher than achieved in any previously reported Penning surface‐plasma source. The so
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::40a47ee4748ab48f4d97d0d49e930b94
https://doi.org/10.1063/1.1145049
https://doi.org/10.1063/1.1145049
Publikováno v:
AIP Conference Proceedings.
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_________::5a4a045a2e5384674ab6460255f8b92e
https://doi.org/10.1063/1.51280
https://doi.org/10.1063/1.51280
Publikováno v:
AIP Conference Proceedings.
Recently, a CW proton accelerator complex was moved from Chalk River Laboratories (CRL) to Los Alamos National Laboratory. This includes a 50‐keV dc proton injector with a single‐solenoid low‐energy beam transport system (LEBT) and a CW 1.25‐
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f6803aded45342a8adcb66d9aa1c01f
https://doi.org/10.1063/1.49067
https://doi.org/10.1063/1.49067
Publikováno v:
AIP Conference Proceedings.
For a number of years, Los Alamos personnel have collaborated with a team of experimentalists at Chalk River Labs (CRL) near Deep River, Ontario, Canada who were pursuing the development of the front end of a high power cw proton accelerator. At the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a19bd4346cb9c25e2e7515d6b5a0bc74
https://doi.org/10.1063/1.49068
https://doi.org/10.1063/1.49068