Zobrazeno 1 - 10
of 50
pro vyhledávání: '"S N, Murray"'
Autor:
C. Stinson, Y. Kang, O. Tarvainen, A. Aleksandrov, S. N. Murray, C. Piller, M. P. Stockli, Terry R Pennisi, Baoxi Han, Robert F Welton
Publikováno v:
SEVENTH INTERNATIONAL SYMPOSIUM ON NEGATIVE IONS, BEAMS AND SOURCES (NIBS 2020).
The U.S. Spallation Neutron Source (SNS) is a state-of-the-art neutron scattering facility delivering the world's most intense pulsed neutron beams to a wide array of instruments which are used to conduct investigations in many fields of science and
Autor:
Robert F Welton, Terry R Pennisi, Y. Kang, C. Stinson, S. N. Murray, M. P. Stockli, A. Aleksandrov, M. Piller, Baoxi Han
Publikováno v:
AIP Conference Proceedings.
The U.S. Spallation Neutron Source (SNS) now operates with 1.2 MW of beam power on target with the near-term goal of delivering 1.4 MW and a longer-term goal of delivering >2 MW required by the planned Proton Power Upgrade (PPU) and Second Target Sta
Autor:
Terry R Pennisi, Baoxi Han, S. N. Murray, Martin P Stockli, Robert F Welton, V. Dudnikov, Andrei Dudnikov, C. Stinson
Publikováno v:
AIP Conference Proceedings.
Deposition of carbon film in RF SPS is observed. It is assumed that persistent cesiation without continuous cesium injection in the Spallation Neutron Source RF Surface Plasma Source (SPS) is related to deposition of carbon film on the collar convert
Autor:
V. Peplov, M. Piller, Baoxi Han, Robert F Welton, R. Saethre, M. M. Middendorf, C. Stinson, Y. W. Kang, A. Aleksandrov, Terry R Pennisi, S. N. Murray, M. P. Stockli, Manuel Santana
Publikováno v:
AIP Conference Proceedings.
The U.S. Spallation Neutron Source (SNS) now operates with 1.2 MW of beam power on target with the near-term goal of delivering 1.4 MW and a longer-term goal of delivering >2 MW to support a planned second target station. Presently, H− beam pulses
Autor:
S. N. Murray, Terry R Pennisi, Martin P. Stockli, Robert F Welton, Manuel Santana, Baoxi Han, C. Stinson
Publikováno v:
AIP Conference Proceedings.
During the past year the Spallation Neutron Source has operated with proton beam powers up to 1.4 MW with good availability. However, after a recent premature target failure the power was reduced to 1 MW for the ∼20-week service cycle of the new ta
Autor:
Manuel Santana, Robert F Welton, Terry R Pennisi, S. N. Murray, C. Stinson, Baoxi Han, M. P. Stockli
Publikováno v:
AIP Conference Proceedings.
The H− injector for the SNS RFQ accelerator consists of an RF-driven, Cs-enhanced H− ion source and a compact, two-lens electrostatic LEBT. The LEBT output and the RFQ input beam current are measured by deflecting the beam on to an annular plate
Autor:
B X, Han, M P, Stockli, Y, Kang, C, Piller, S N, Murray, T R, Pennisi, M, Santana, R F, Welton
Publikováno v:
The Review of scientific instruments. 87(2)
The Spallation Neutron Source H(-) ion source is operated with a pulsed 2-MHz RF (50-60 kW) to produce the 1-ms long, ∼50 mA H(-) beams at 60 Hz. A continuous low power (∼300 W) 13.56-MHz RF plasma, which is initially ignited with a H2 pressure b
Autor:
Evangelina Schwindt, J. C. Ljubenkov, K. Reardon, Gretchen Lambert, S. N. Murray, James T. Carlton, Brian L. Bingham, L. C. Rao, John W. Chapman, L. H. Harris, A. N. Cohen, Charles C. Lambert
Publikováno v:
Biological Invasions. 7:995-1002
In recent decades, the world has witnessed an array of harmful invasions by exotic marine organisms. To provide the public and policymakers with better information on the status of exotic species in southern California waters, and to assess differenc
Publikováno v:
AIP Conference Proceedings.
The SNS H− ion source is a dual-frequency RF-driven (13.56-MHz low power continuous RF superimposed by 2-MHz high power pulsed RF with ∼1.0 ms pulse length at 60 Hz), Cs-enhanced ion source. This paper discusses the applications of optical emissi
Autor:
M. Piller, Baoxi Han, Manuel Santana, M. P. Stockli, Y. W. Kang, Vadim Dudnikov, Robert F Welton, A. Aleksandrov, Terry R Pennisi, S. N. Murray
Publikováno v:
AIP Conference Proceedings.
The U.S. Spallation Neutron Source (SNS) now operates with ∼1 MW of beam power to target with the near-term goal of delivering 1.4 MW. Plans are being considered to incorporate a second target station into the facility which will require ∼2.8 MW