Zobrazeno 1 - 10
of 205
pro vyhledávání: '"S. Cousineau"'
Publikováno v:
Physical Review Accelerators and Beams, Vol 26, Iss 6, p 064202 (2023)
We conduct a detailed measurement and analysis of a hadron beam in five-dimensional phase space at the Spallation Neutron Source Beam Test Facility. The measurement’s resolution and dynamic range are sufficient to image sharp, high-dimensional feat
Externí odkaz:
https://doaj.org/article/8b2d3b6cc1dc4435aabb52956d79a65a
Autor:
W. Gong, S. R. Beagley, S. Cousineau, M. Sassi, R. Munoz-Alpizar, S. Ménard, J. Racine, J. Zhang, J. Chen, H. Morrison, S. Sharma, L. Huang, P. Bellavance, J. Ly, P. Izdebski, L. Lyons, R. Holt
Publikováno v:
Atmospheric Chemistry and Physics, Vol 18, Pp 16653-16687 (2018)
A first regional assessment of the impact of shipping emissions on air pollution in the Canadian Arctic and northern regions was conducted in this study. Model simulations were carried out on a limited-area domain (at 15 km horizontal resolution
Externí odkaz:
https://doaj.org/article/3c2cf40b92594e3c9663a3a65b072f29
Publikováno v:
Physical Review Accelerators and Beams, Vol 23, Iss 12, p 124201 (2020)
Modern accelerator front ends almost exclusively include radio-frequency quadrupoles for initial capture and focusing of the low-energy beam. Dynamics in the RFQ define the longitudinal bunch parameters. Simulation of the SNS RFQ with PARMTEQ seeded
Externí odkaz:
https://doaj.org/article/d160d95f96314ef68105379ddad12c32
Publikováno v:
Physical Review Accelerators and Beams, Vol 21, Iss 12, p 124403 (2018)
One major concern in the design and operation of high-intensity rings is beam loss due to beam halo. Another issue of importance in applications involving fixed targets is the uniformity of the beam energy deposition on the target. Both of these issu
Externí odkaz:
https://doaj.org/article/2676b7fb1fff4d3094a597ebc625c702
Autor:
P. A. Makar, M. D. Moran, Q. Zheng, S. Cousineau, M. Sassi, A. Duhamel, M. Besner, D. Davignon, L.-P. Crevier, V. S. Bouchet
Publikováno v:
Atmospheric Chemistry and Physics, Vol 9, Iss 18, Pp 7183-7212 (2009)
A unified regional air-quality modelling system (AURAMS) was used to investigate the effects of reductions in ammonia emissions on regional air quality, with a focus on particulate-matter formation. Three simulations of one-year duration were perform
Externí odkaz:
https://doaj.org/article/4bab4e6be4ef4e6182fb814f88c98ede
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 14, Iss 7, p 074401 (2011)
Occasionally, it is possible to bring together experiment, theory, and simulation in detail. Such an occasion occurred during a high intensity beam physics study in the Spallation Neutron Source (SNS). A transverse dipole instability in the vertical
Externí odkaz:
https://doaj.org/article/3537d9ee748a4333954167d51f1cb202
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 14, Iss 6, p 064001 (2011)
The Spallation Neutron Source accelerator utilizes H^{-} charge exchange injection to merge a 1 GeV, 1 MW beam from a linac into an accumulator ring. The design calls for the 545 keV foil-stripped electrons to be absorbed by an electron catcher locat
Externí odkaz:
https://doaj.org/article/35c8724fccdb4baa8bddada28094c96b
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 11, Iss 1, p 019901 (2008)
Externí odkaz:
https://doaj.org/article/bb4ef4d7945b4caab247c3e0a0fc5e3d
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 7, Iss 9, p 094201 (2004)
We present experimental data from the Los Alamos Proton Storage Ring (PSR) showing long-lived linac microbunch structure during beam storage with no rf bunching. Analysis of the experimental data and particle-in-cell simulations of the experiments in
Externí odkaz:
https://doaj.org/article/43cc83bf24d241c6ae302c8875af1e74
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 6, Iss 9, p 094202 (2003)
Finding self-consistent distributions of beam particles interacting with each other via the space charge force is one of the challenges of accelerator physics. Exactly solvable models are used for simulation benchmarks, instability threshold calculat
Externí odkaz:
https://doaj.org/article/70f06dfb53d04063a075425d4298b88b